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Author |
Potgieter-Vermaak, S.S.; Godoi, R.H.M.; Van Grieken, R.; Potgieter, J.H.; Oujja, M.; Castillejo, M. |
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Title |
Micro-structural characterization of black crust and laser cleaning of building stones by micro-Raman and SEM techniques |
Type |
A1 Journal article |
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Year |
2005 |
Publication |
Spectrochimica acta: part A: molecular and biomolecular spectroscopy |
Abbreviated Journal |
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Volume |
61 |
Issue |
11/12 |
Pages |
2460-2467 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000231340200005 |
Publication Date |
2004-11-11 |
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Series Volume |
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Edition |
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ISSN |
1386-1425 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Times cited |
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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:53444 |
Serial |
8234 |
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Author |
Potgieter-Vermaak, S.; Worobiec, A.; Darchuk, L.; Van Grieken, R. |
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Title |
Micro-Raman spectroscopy for the analysis of environmental particles |
Type |
H1 Book chapter |
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Year |
2011 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
193-208
T2 - Fundamentals and applications in aero |
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Keywords |
H1 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
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ISBN |
978-1-4200-8571-6 |
Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:86614 |
Serial |
8233 |
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Permanent link to this record |
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Author |
Gatto Rotondo, G.; Darchuk, L.; Swaenen, M.; Van Grieken, R. |
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Title |
Micro-Raman and SEM analysis of minerals from the Darhib mine, Egypt |
Type |
A1 Journal article |
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Year |
2012 |
Publication |
Journal of analytical sciences, methods and instrumentation |
Abbreviated Journal |
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Volume |
2 |
Issue |
1 |
Pages |
42-47 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The Darhib mine is one of the several talc deposits in the Hamata area of southeastern Egypt. Several specimens of minerals coming from this mine were subjected to complementary investigation by micro-Raman spectrometry and scanning electron microscopy. The difficulty in their identification is the appearance of most of them: they are all very small and only visible under the mineral binocular microscope(×10 – ×40). They appear as small crystals in fissures and holes and a visual determination on colour and crystal gives only a guess of what kind of mineral it could be. Therefore, only after analyzing them by micro-Raman and scanning electron microscopy it was possible to identify their structure and they can be divided in three main groups: one is quite generic and several minerals of different species were identified, such as quartz, talc, mottramite and chrysocolla, very common in the talc mine (these ones are Si-based minerals); the other one is constituted by four samples which are Zn and/or Cu rich, which means minerals of the rosasite or aurichalcite groups; the last group is constituted by two samples containing mainly Pb.. |
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Publication Date |
2012-03-31 |
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Edition |
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ISSN |
2164-2745; 2164-2753 |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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no |
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Call Number |
UA @ admin @ c:irua:102567 |
Serial |
8232 |
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Permanent link to this record |
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Author |
Aibéo, C.L.; Goffin, S.; Schalm, O.; van der Snickt, G.; Laquière, N.; Eyskens, P.; Janssens, K. |
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Title |
Micro-Raman analysis for the identification of pigments from 19th and 20th century paintings |
Type |
A1 Journal article |
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Year |
2008 |
Publication |
Journal of Raman spectroscopy |
Abbreviated Journal |
J Raman Spectrosc |
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Volume |
39 |
Issue |
8 |
Pages |
1091-1098 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
In this article, results using confocal µ-Raman to analyse the cross-section of paint samples are presented. Results obtained with light microscopy, scanning electron microscopy (SEM) combined with an energy dispersive X-ray analysis (EDX) and micro-X-ray fluorescence (µ-XRF) are mentioned and compared to the ones obtained with confocal (MRS). In some cases, pigment identification was possible only by combining analytical results from different techniques. The samples were drawn from five paintings belonging to the Academy of Fine Arts of Antwerp, which are part of a collection of 34 paintings made by students from the Academy between 1819 and 1920. Since, on the one hand, the painting techniques and materials, especially pigments, used in this period are still not completely known, and on the other hand, this collection constitutes a very important and reliable resource of information, these paintings were chosen for a systematic investigation. They represent the evolution of painting in Belgium over approximately a century. |
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Wos |
000259242100020 |
Publication Date |
2008-05-16 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0377-0486 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
2.969 |
Times cited |
28 |
Open Access |
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Notes |
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Approved |
Most recent IF: 2.969; 2008 IF: 3.526 |
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Call Number |
UA @ admin @ c:irua:74467 |
Serial |
5716 |
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Permanent link to this record |
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Author |
Kempenaers, L.; Janssens, K.; Jochum, K.P.; Vincze, L.; Vekemans, B.; Somogyi, A.; Drakopoulos, M.; Adams, F. |
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Title |
Micro-heterogeneity study of trace elements in USGS, MPI-DING and glass reference materials by means of synchrotron micro-XRF |
Type |
A1 Journal article |
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Year |
2003 |
Publication |
Journal of analytical atomic spectrometry |
Abbreviated Journal |
J Anal Atom Spectrom |
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Volume |
18 |
Issue |
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Pages |
350-357 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000181827800010 |
Publication Date |
2003-03-27 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0267-9477 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.379 |
Times cited |
38 |
Open Access |
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Notes |
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Approved |
Most recent IF: 3.379; 2003 IF: 3.200 |
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Call Number |
UA @ admin @ c:irua:41009 |
Serial |
5715 |
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Permanent link to this record |
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Author |
Kempenaers, L.; Vincze, L.; Vekemans, B.; Janssens, K.; Adams, F.; Somogyi, A.; Drakopoulos, M.; Simionovici, A.S. |
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Title |
Micro-heterogeneity study of trace elements in reference materials |
Type |
MA3 Book as author |
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Year |
2004 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
132 p. |
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Keywords |
MA3 Book as author; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:49217 |
Serial |
5714 |
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Permanent link to this record |
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Author |
Kempenaers, L.; de Koster, C.; van Borm, W.; Janssens, K. |
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Title |
Micro-heterogeneity study of trace elements in BCR CRM 680 by means of synchrotron micro-XRF |
Type |
A1 Journal article |
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Year |
2001 |
Publication |
Fresenius' journal of analytical chemistry |
Abbreviated Journal |
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Volume |
369 |
Issue |
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Pages |
733-737 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000168522500038 |
Publication Date |
2002-10-06 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0937-0633 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
15 |
Open Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ admin @ c:irua:34150 |
Serial |
5713 |
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Permanent link to this record |
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Author |
Hao, Y.L.; Peeters, F.M. |
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Title |
Micro-Hall bar as a sensor to detect the interaction of nanoscale ferromagnetic disks and columns |
Type |
A1 Journal article |
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Year |
2007 |
Publication |
Journal of applied physics |
Abbreviated Journal |
J Appl Phys |
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Volume |
101 |
Issue |
12 |
Pages |
123718,1-4 |
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Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Publisher |
American Institute of Physics |
Place of Publication |
New York, N.Y. |
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Wos |
000247625700078 |
Publication Date |
2007-07-05 |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0021-8979; |
ISBN |
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Additional Links |
UA library record; WoS full record |
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Impact Factor |
2.068 |
Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: 2.068; 2007 IF: 2.171 |
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Call Number |
UA @ lucian @ c:irua:69646 |
Serial |
2022 |
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Permanent link to this record |
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Author |
Rindby, A.; Engström, P.; Janssens, K.; Osán, J. |
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Title |
Micro-distribution of heavy elements in highly inhomogeneous particles generated from μ-beam XRF/XRD analysis |
Type |
A1 Journal article |
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Year |
1997 |
Publication |
Nuclear instruments and methods in physics research: B: beam interactions with materials and atoms |
Abbreviated Journal |
Nucl Instrum Meth B |
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Volume |
124 |
Issue |
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Pages |
591-604 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0168-583x |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
1.109 |
Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: 1.109; 1997 IF: 1.016 |
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Call Number |
UA @ admin @ c:irua:21715 |
Serial |
5712 |
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Permanent link to this record |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Winchester, J.W.; Odom, L. |
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Title |
Micro-determination of zirconium-hafnium ratios in zircons by proton induced X-ray emission |
Type |
A3 Journal article |
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Year |
1975 |
Publication |
Fresenius' Zeitschrift für analytische Chemie |
Abbreviated Journal |
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Volume |
275 |
Issue |
5 |
Pages |
343-348 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The zirconium/hafnium ratios of zircons are determined using proton induced X-ray emission. Submilligram samples, imbedded in a starch layer and deposited on a 50 μg/cm2 polystyrene carrier, are irradiated for 1020 min with a 5 nA beam of 3.7 MeV protons, while the Hf-Lβ and Zr-Kα X-rays are counted with a Si(Li) detector. The standard deviation per analysis is in the 36 % range. Only few interferences are possible. To eliminate errors due to absorption effects the zircon layer thickness should be above 40 μm or reproducibly thin samples should be employed. Measuring the Hf-Lβ/Hf-Lα ratio for samples and standards might provide a practical check for the absence of absorption errors. The sensitivity is so favourable that, in practice, the minimal sample size is only limited by the minimal amount that can be handled properly. |
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Wos |
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Publication Date |
2004-11-11 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0016-1152 |
ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116636 |
Serial |
8231 |
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Permanent link to this record |
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Author |
Cagno, S.; Lind, O.C.; Popic, J.M.; Skipperud, L.; De Nolf, W.; Nuyts, G.; Vanmeert, F.; Jaroszewicz, J.; Janssens, K.; Salbu, B. |
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Title |
Micro-analytical characterization of thorium-rich aggregates from Norwegian NORM sites (Fen Complex, Telemark) |
Type |
A1 Journal article |
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Year |
2020 |
Publication |
Journal Of Environmental Radioactivity |
Abbreviated Journal |
J Environ Radioactiv |
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Volume |
219 |
Issue |
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Pages |
106273 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
In this study we performed microscopic characterization of mineral particles that were collected in the thorium-rich Fen Complex in Norway and identified and isolated based on autoradiography in function of their radioactivity. For this we combined information obtained with X-ray absorption mu-CT, mu-XRF and mu-XRD, both in bi- and in three-dimensional (tomographic) mode. We demonstrate that radionuclides and metals are heterogeneously distributed both within soil samples and within individual Th-enriched aggregates, which are characterised as low-density mineral bulk particles with high density material inclusions, where Th as well as several metals are highly concentrated. For these sites, it is important to take into account how these inhomogeneous distributions could affect the overall environmental behaviour of Th and progeny upon weathering due to human or environmental factors. Moreover, the estimated size of the Th-containing inclusions as determined in this work represents information of importance for the characterization of radionuclides and toxic metals exposure, as well as for assessing the viability of mining for Th and rare-earth metals in the Fen Complex and the associated environmental impact. |
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Wos |
000535130500005 |
Publication Date |
2020-04-27 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0265-931x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
2.3 |
Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: 2.3; 2020 IF: 2.31 |
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Call Number |
UA @ admin @ c:irua:181195 |
Serial |
8229 |
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Permanent link to this record |
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Author |
Lind, O.C.; de Nolf, W.; Janssens, K.; Salbu, B. |
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Title |
Micro-analytical characterisation of radioactive heterogeneities in samples from Central Asian TENORM sites |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Journal of environmental radioactivity |
Abbreviated Journal |
J Environ Radioactiv |
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Volume |
123 |
Issue |
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Pages |
63-70 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The present work focuses on the use of micro-analytical techniques to demonstrate the heterogeneous distribution of radionuclides and metals in soils collected at Former Soviet Union mining sites in Central Asia. Based on digital autoradiography, radionuclides were heterogeneously distributed in soil samples collected at the abandoned uranium mining sites Kurday, Kazakhstan, Kadji Sai, Kyrgyzstan and Taboshar, Tajikistan. Using electron microscopy interfaced with X-ray microanalysis submicron – mm-sized radioactive particles and rock fragments with U, As, Se and toxic metals on the surfaces were identified in Kurday and Kadji Sai samples. Employing scanning and tomographic (3D) synchrotron radiation based micro-X-ray fluorescence (mu-SRXRF) and synchrotron radiation based micro-X-ray diffraction (mu-SRXRD) allowed us to observe the inner structure of the particles without physical sectioning. The distribution of elements in virtual crosssections demonstrated that U and a series of toxic elements were rather heterogeneously distributed also within individual radioactive TENORM particles. Compared to archived data, U in Kadji Sai particles was present as uraninite (U4O9+y or UO2+x) or Na-zippeite aNa(4)(UO2)(6)[(OH)(10)(SO4)(3)]center dot 4H(2)O), i.e. U minerals with very low solubility. The results suggested that TENORM particles can carry substantial amount of radioactivity, which can be subject to re-suspension, atmospheric transport and water transport. Thus, the potential radioecological and radioanalytical impact of radioactive particles at NORM and TENORM sites worldwide should be taken into account. The present work also demonstrates that radioecological studies should benefit from the use of advanced methods such as synchrotron radiation based techniques. (C) 2012 Elsevier Ltd. All rights reserved. |
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Wos |
000321177200007 |
Publication Date |
2012-03-16 |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0265-931x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
2.31 |
Times cited |
16 |
Open Access |
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Notes |
; We gratefully acknowledge the support provided by the Norwegian Ministry of Foreign Affairs and the European Commission (HASYLAB proposal I-20070051 EC and II-20090184 EC). The authors are indebted to Dr. Karen Appel and Dr. Manuela Borchert, Hasylab for beamline assistance. ; |
Approved |
Most recent IF: 2.31; 2013 IF: 3.571 |
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Call Number |
UA @ admin @ c:irua:109558 |
Serial |
5710 |
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Permanent link to this record |
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Author |
de Bock, L.A.; Van Grieken, R.E.; Camuffo, D.; Grime, G.W. |
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Title |
Micro-analysis of museum aerosols to elucidate the soiling of paintings: case of the Correr Museum, Venice, Italy |
Type |
A1 Journal article |
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Year |
1996 |
Publication |
Environmental science and technology |
Abbreviated Journal |
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Volume |
30 |
Issue |
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Pages |
3341-3350 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Wos |
A1996VR63100052 |
Publication Date |
2002-07-26 |
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Abbreviated Series Title |
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Series Issue |
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Edition |
|
|
|
ISSN |
0013-936x; 1520-5851 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:14658 |
Serial |
8228 |
|
Permanent link to this record |
|
|
|
|
Author |
Van Grieken, R.; Artaxo, P.; Bernard, P.; Leysen, L.; Otten, P.; Storms, H.; Van Put, A.; Wouters, L.; Xhoffer, C. |
|
|
Title |
Micro-analysis of individual environmental particles |
Type |
A1 Journal article |
|
Year |
1990 |
Publication |
Chemia analityczna |
Abbreviated Journal |
|
|
|
Volume |
35 |
Issue |
|
Pages |
75-89 |
|
|
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
|
Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
A1990FG37600010 |
Publication Date |
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0009-2223 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:116932 |
Serial |
8227 |
|
Permanent link to this record |
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|
|
|
Author |
de Bock, L.A.; Jambers, W.; Van Grieken, R.E. |
|
|
Title |
Micro-analysis of individual aerosol particles using electron, proton and laser beams |
Type |
A1 Journal article |
|
Year |
1996 |
Publication |
South African journal of chemistry = Suid-Afrikaanse tydskrif vir chemie |
Abbreviated Journal |
|
|
|
Volume |
49 |
Issue |
|
Pages |
65-72 |
|
|
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
|
Abstract |
|
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|
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
A1996WK16600004 |
Publication Date |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
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Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:14659 |
Serial |
8226 |
|
Permanent link to this record |
|
|
|
|
Author |
Claes, M.; van Ham, R.; Janssens, K.; Van Grieken, R.; Klockenkämper, R.; von Bohlen, A. |
|
|
Title |
Micro-analysis of artists' pigments by grazing-emission X-ray fluorescence spectrometry |
Type |
A3 Journal article |
|
Year |
1999 |
Publication |
Advances in X-ray analysis |
Abbreviated Journal |
|
|
|
Volume |
41 |
Issue |
|
Pages |
262-277 |
|
|
Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
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Publication Date |
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0376-0308 |
ISBN |
|
Additional Links |
UA library record |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
Most recent IF: NA |
|
|
Call Number |
UA @ admin @ c:irua:24653 |
Serial |
5709 |
|
Permanent link to this record |
|
|
|
|
Author |
Van Grieken, R.; Torfs, K. |
|
|
Title |
Micro- and trace analysis of ambient particles, runoff water and crusts to evaluate environmental effects on monument |
Type |
P3 Proceeding |
|
Year |
1996 |
Publication |
Proceedings of the EC Workshop on Non-Destructive Testing to Evaluate Damage due to Environmental Effects on Historic Monuments |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
|
|
|
Keywords |
P3 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
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Publication Date |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Additional Links |
UA library record |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:14660 |
Serial |
8230 |
|
Permanent link to this record |
|
|
|
|
Author |
de Nolf, W.; Janssens, K. |
|
|
Title |
Micro X-ray diffraction and fluorescence tomography for the study of multilayered automotive paints |
Type |
A1 Journal article |
|
Year |
2010 |
Publication |
Surface and interface analysis |
Abbreviated Journal |
Surf Interface Anal |
|
|
Volume |
42 |
Issue |
5 |
Pages |
411-418 |
|
|
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
|
Abstract |
Combined microscopic X-ray fluorescence/microscopic X-ray diffraction (µ-XRF/µ-XRD) tomography is a recently developed method that allows the visualization of the distribution of chemical elements and the associated crystalline phases inside complex, heterogeneous materials of extended thickness (millimeter range) in a nondestructive fashion. In this paper, the accuracy and resolution with which the individual layers in a multilayer stack of automotive paints can be distinguished is evaluated, and some of their properties measured. A paint layer system of eight layers was investigated, in which eight different crystalline substances were identified, each layer consisting of an organic, synthetic resin doped with finely milled inorganic compounds that serve as pigments or to strengthen the layer. In the XRD tomograms, all paint layers could be straightforwardly distinguished and their average thickness calculated. In case the filtered back projection method was used for tomogram reconstruction, a spatial resolution comparable to the microbeam size was obtained indicating no significant reconstruction blurring. When a more robust reconstruction method, such as the maximum-likelihood expectation maximization method, was employed, tomograms showing fewer artifacts were obtained, but with a spatial resolution that was two times worse. In the corresponding XRF tomograms, significant self-absorption distorted the element-specific tomograms corresponding to the low-energy (<7 keV) characteristic radiation and limited their usefulness. It can be concluded that microbeam XRD tomography allows the accurate visualization of the distribution of crystalline phases in multilayered automotive paint materials of millimeter dimensions with sufficient resolution to allow separate characterization of each layer in terms of its crystal-phase composition and thickness. |
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Address |
|
|
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Corporate Author |
|
Thesis |
|
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|
Publisher |
|
Place of Publication |
|
Editor |
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|
|
Language |
|
Wos |
000277350900012 |
Publication Date |
2009-11-10 |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
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|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0142-2421 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
1.132 |
Times cited |
70 |
Open Access |
|
|
|
Notes |
; This research was supported by the Interuniversity Attraction Poles Programme-Belgian Science Policy (IUAP VI/16) and funded by beam time grants from HASYLAB. This paper also presents results from a GOA project of the Research Fund of the University of Antwerp (Belgium), and of FWO (Brussels, Belgium) project nos. G.0177.03, G.0103.04, and G.0689.06. We also would like to acknowledge the Institute of Forensic Research in Krakow, Poland, and in particular Dr J. Zieba for providing the paint layer sample. ; |
Approved |
Most recent IF: 1.132; 2010 IF: 1.249 |
|
|
Call Number |
UA @ admin @ c:irua:82764 |
Serial |
5717 |
|
Permanent link to this record |
|
|
|
|
Author |
Ma, X.; Pavlidis, G.; Dillon, E.; Beltran, V.; Schwartz, J.J.; Thoury, M.; Borondics, F.; Sandt, C.; Kjoller, K.; Berrie, B.H.; Centrone, A. |
|
|
Title |
Micro to nano : multiscale IR analyses reveal zinc soap heterogeneity in a 19th-century painting by Corot |
Type |
A1 Journal article |
|
Year |
2022 |
Publication |
Analytical chemistry |
Abbreviated Journal |
|
|
|
Volume |
94 |
Issue |
7 |
Pages |
3103-3110 |
|
|
Keywords |
A1 Journal article; Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) |
|
|
Abstract |
Formation and aggregation of metal carboxylates (metal soaps) can degrade the appearance and integrity of oil paints, challenging efforts to conserve painted works of art. Endeavors to understand the root cause of metal soap formation have been hampered by the limited spatial resolution of Fourier transform infrared microscopy (mu-FTIR). We overcome this limitation using optical photothermal infrared spectroscopy (O-PTIR) and photothermal-induced resonance (PTIR), two novel methods that provide IR spectra with approximate to 500 and approximate to 10 nm spatial resolutions, respectively. The distribution of chemical phases in thin sections from the top layer of a 19th-century painting is investigated at multiple scales (mu-FTIR approximate to 10(2) mu m(3), O-PTIR approximate to 10(-1) mu m(3), PTIR approximate to 10(-5) mu m(3)). The paint samples analyzed here are found to be mixtures of pigments (cobalt green, lead white), cured oil, and a rich array of intermixed, small (often << 0.1 mu m(3)) zinc soap domains. We identify Zn stearate and Zn oleate crystalline soaps with characteristic narrow IR peaks (approximate to 1530-1558 cm(-1)) and a heterogeneous, disordered, water-permeable, tetrahedral zinc soap phase, with a characteristic broad peak centered at approximate to 1596 cm(-1). We show that the high signal-to-noise ratio and spatial resolution afforded by O-PTIR are ideal for identifying phase-separated (or locally concentrated) species with low average concentration, while PTIR provides an unprecedented nanoscale view of distributions and associations of species in paint. This newly accessible nanocompositional information will advance our knowledge of chemical processes in oil paint and will stimulate new art conservation practices. |
|
|
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
|
Editor |
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|
Language |
|
Wos |
000766206700011 |
Publication Date |
2022-02-09 |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0003-2700; 5206-882x |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS full record; WoS citing articles |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
OpenAccess |
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
UA @ admin @ c:irua:187380 |
Serial |
8897 |
|
Permanent link to this record |
|
|
|
|
Author |
Geuens, I.; Gijbels, R.; Dekeyzer, R.; Verbeeck, A. |
|
|
Title |
Micro and surface analysis of individual silver halide microcrystals using a scanning ion microprobe |
Type |
P1 Proceeding |
|
Year |
1994 |
Publication |
Papers |
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
27-30 |
|
|
Keywords |
P1 Proceeding; Engineering sciences. Technology; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
Soc imaging science technology |
Place of Publication |
Springfield |
Editor |
|
|
|
Language |
|
Wos |
A1994BC23W00013 |
Publication Date |
0000-00-00 |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0-89208-177-5 |
ISBN |
|
Additional Links |
UA library record; WoS full record; |
|
|
Impact Factor |
|
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
PHYSICS, CONDENSED MATTER 16/67 Q1 # |
|
|
Call Number |
UA @ lucian @ c:irua:95946 |
Serial |
2021 |
|
Permanent link to this record |
|
|
|
|
Author |
Adams, F.; Adriaens, A.; Aerts, A.; de Raedt, I.; Janssens, K.; Schalm, O. |
|
|
Title |
Micro and surface analysis in archaeology |
Type |
A1 Journal article |
|
Year |
1997 |
Publication |
Journal of analytical atomic spectrometry |
Abbreviated Journal |
J Anal Atom Spectrom |
|
|
Volume |
12 |
Issue |
3 |
Pages |
257-265 |
|
|
Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
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|
Publisher |
|
Place of Publication |
|
Editor |
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|
|
Language |
|
Wos |
A1997WN16300001 |
Publication Date |
2002-07-26 |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0267-9477 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
3.379 |
Times cited |
|
Open Access |
|
|
|
Notes |
|
Approved |
Most recent IF: 3.379; 1997 IF: 3.595 |
|
|
Call Number |
UA @ admin @ c:irua:16274 |
Serial |
5711 |
|
Permanent link to this record |
|
|
|
|
Author |
González-Rubio, G.; Mosquera, J.; Kumar, V.; Pedrazo-Tardajos, A.; Llombart, P.; Solís, D.M.; Lobato, I.; Noya, E.G.; Guerrero-Martínez, A.; Taboada, J.M.; Obelleiro, F.; MacDowell, L.G.; Bals, S.; Liz-Marzán, L.M. |
|
|
Title |
Micelle-directed chiral seeded growth on anisotropic gold nanocrystals |
Type |
A1 Journal article |
|
Year |
2020 |
Publication |
Science |
Abbreviated Journal |
Science |
|
|
Volume |
368 |
Issue |
368 |
Pages |
1472-1477 |
|
|
Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
|
|
Abstract |
Surfactant-assisted seeded growth of metal nanoparticles (NPs) can be engineered to produce anisotropic gold nanocrystals with high chiroptical activity through the templating effect of chiral micelles formed in the presence of dissymmetric cosurfactants. Mixed micelles adsorb on gold nanorods, forming quasihelical patterns that direct seeded growth into NPs with pronounced morphological and optical handedness. Sharp chiral wrinkles lead to chiral plasmon modes with high dissymmetry factors (~0.20). Through variation of the dimensions of chiral wrinkles, the chiroptical properties can be tuned within the visible and near-infrared electromagnetic spectrum. The micelle-directed mechanism allows extension to other systems, such as the seeded growth of chiral platinum shells on gold nanorods. This approach provides a reproducible, simple, and scalable method toward the fabrication of NPs with high chiral optical activity. |
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|
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
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Editor |
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|
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Language |
|
Wos |
000545264600040 |
Publication Date |
2020-06-26 |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0036-8075 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
56.9 |
Times cited |
187 |
Open Access |
OpenAccess |
|
|
Notes |
L.M.L.-M. acknowledges funding from the European Research Council (ERC AdG No. 787510). G.G.-R. and J.M. thanks the Spanish MICIU for FPI (BES-2014-068972) and Juan de la Cierva-fellowships (FJCI-2015-25080). S.B., L.M.L.-M., V.K, and A.P.- T. acknowledge financial support from the European Commission under the Horizon 2020 Programme by means of the grant agreement No. 731019 (EUSMI) and the ERC Consolidator Grant No. 815128 (REALNANO). J.M.T and F.O acknowledge financial support from the Spanish MICIU (Grants TEC2017-85376-C2-1-R, TEC2017-85376-C2-2-R), as well as from the ERDF and the Galician Regional Government as part of the agreement for funding the Atlantic Research Center for Information and Communication Technologies (AtlantTIC). AG-M acknowledges financial support from the Spanish MICIU (Grant RTI2018-095844-BI00), EGN and LGM acknowledge funds from the Spanish MICIU (Grant No. FIS2017- 89361-C3-2-P), as well as the use of the Mare-Nostrum supercomputer and the technical support provided by Barcelona Supercomputing Center from the Spanish Network of Supercomputing (Grants QCM-2018-3-0039 and QCM-2019-1-0038). This work was performed under the Maria de Maeztu Units of Excellence Program from the Spanish State 13 Research Agency – Grant No. MDM-2017-0720.; sygma |
Approved |
Most recent IF: 56.9; 2020 IF: 37.205 |
|
|
Call Number |
EMAT @ emat @c:irua:170137 |
Serial |
6391 |
|
Permanent link to this record |
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Author |
Alekseeva, A.M.; Abakumov, A.M.; Leithe-Jasper, A.; Schnelle, W.; Prots, Y.; Van Tendeloo, G.; Antipov, E.V.; Grin, Y. |
|
|
Title |
Mg8Rh4B: a new type of boron stabilized Ti2Ni structure |
Type |
A1 Journal article |
|
Year |
2006 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
|
|
Volume |
179 |
Issue |
9 |
Pages |
2751-2761 |
|
|
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
|
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Abstract |
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|
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Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
London |
Editor |
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Language |
|
Wos |
000240157400004 |
Publication Date |
2006-01-05 |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
2.299 |
Times cited |
11 |
Open Access |
|
|
|
Notes |
|
Approved |
Most recent IF: 2.299; 2006 IF: 2.107 |
|
|
Call Number |
UA @ lucian @ c:irua:60810 |
Serial |
3544 |
|
Permanent link to this record |
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|
|
|
Author |
Alekseeva, A.M.; Abakumov, A.M.; Leithe-Jasper, A.; Schnelle, W.; Prots, Y.; Hadermann, J.; Van Tendeloo, G.; Antipov, E.V.; Grin, Y. |
|
|
Title |
Mg1-xRhB, a new boridometallide with 2D polyanion |
Type |
A1 Journal article |
|
Year |
2005 |
Publication |
Zeitschrift für anorganische und allgemeine Chemie |
Abbreviated Journal |
Z Anorg Allg Chem |
|
|
Volume |
631 |
Issue |
6/7 |
Pages |
1047-1054 |
|
|
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
|
|
Abstract |
|
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|
Address |
|
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Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
Leipzig |
Editor |
|
|
|
Language |
|
Wos |
000228931900010 |
Publication Date |
2005-04-18 |
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0044-2313;1521-3749; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
|
|
Impact Factor |
1.144 |
Times cited |
13 |
Open Access |
|
|
|
Notes |
Iap V-1 |
Approved |
Most recent IF: 1.144; 2005 IF: 1.202 |
|
|
Call Number |
UA @ lucian @ c:irua:52374 |
Serial |
3543 |
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Permanent link to this record |
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|
|
Author |
Ivanov, V.A.; Betouras, J.J.; Peeters, F.M. |
|
|
Title |
MgB2 : superconductivity and pressure effects |
Type |
P1 Proceeding |
|
Year |
2003 |
Publication |
|
Abbreviated Journal |
|
|
|
Volume |
|
Issue |
|
Pages |
35-46 |
|
|
Keywords |
P1 Proceeding; Condensed Matter Theory (CMT) |
|
|
Abstract |
We present a Ginzburg-Landau theory for a two-band superconductor with emphasis on MgB2. We propose experiments which lead to identification of the possible scenarios: whether both sigma- and pi-bands superconduct or sigma-alone. According to the second scenario a microscopic theory of superconducting MgB2 is proposed based on the strongly interacting or-electrons and non-correlated pi-electrons of boron ions. The kinematic and Coulomb interactions of sigma-electrons provide the superconducting state with an anisotropic gap of s(*)-wave symmetry. The critical temperature T-c has a non-monotonic dependence on the distance r between the centers of gravity of sigma- and pi-bands. The position of MgB2 on a bell-shaped curve T-c (r) is identified in the overdoped region. The derived superconducting density of electronic states is in agreement with available experimental and theoretical data. It is argued that the effects of pressure are crucial to identify the microscopic origin of superconductivity in MgB2. Possibilities for increase of T, are discussed. |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Springer |
Place of Publication |
Dordrecht |
Editor |
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|
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Language |
|
Wos |
|
Publication Date |
0000-00-00 |
|
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Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
106 |
Series Issue |
|
Edition |
|
|
|
ISSN |
1-4020-1372-8 |
ISBN |
|
Additional Links |
UA library record; WoS full record; |
|
|
Impact Factor |
|
Times cited |
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Open Access |
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Notes |
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Approved |
Most recent IF: NA |
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Call Number |
UA @ lucian @ c:irua:94869 |
Serial |
2020 |
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Permanent link to this record |
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Author |
Yagmurcukardes, M.; Torun, E.; Senger, R.T.; Peeters, F.M.; Sahin, H. |
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Title |
Mg(OH)2-WS2 van der Waals heterobilayer : electric field tunable band-gap crossover |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Physical review B |
Abbreviated Journal |
Phys Rev B |
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Volume |
94 |
Issue |
94 |
Pages |
195403 |
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Keywords |
A1 Journal article; Condensed Matter Theory (CMT) |
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Abstract |
Magnesium hydroxide [Mg(OH)(2)] has a layered brucitelike structure in its bulk form and was recently isolated as a new member of two-dimensional monolayer materials. We investigated the electronic and optical properties of monolayer crystals of Mg(OH)(2) and WS2 and their possible heterobilayer structure by means of first-principles calculations. It was found that both monolayers of Mg(OH)(2) and WS2 are direct-gap semiconductors and these two monolayers form a typical van der Waals heterostructure with a weak interlayer interaction and a type-II band alignment with a staggered gap that spatially separates electrons and holes. We also showed that an out-of-plane electric field induces a transition from a staggered to a straddling-type heterojunction. Moreover, by solving the Bethe-Salpeter equation on top of single-shot G(0)W(0) calculations, we show that the low-energy spectrum of the heterobilayer is dominated by the intralyer excitons of the WS2 monolayer. Because of the staggered interfacial gap and the field-tunable energy-band structure, the Mg(OH)(2)-WS2 heterobilayer can become an important candidate for various optoelectronic device applications in nanoscale. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000386769400007 |
Publication Date |
2016-11-03 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2469-9950;2469-9969; |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
3.836 |
Times cited |
38 |
Open Access |
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Notes |
; This work was supported by the Flemish Science Foundation (FWO-Vl) and the Methusalem foundation of the Flemish government. Computational resources were provided by TUBITAK ULAKBIM, High Performance and Grid Computing Center (TR-Grid e-Infrastructure). H.S. is supported by a FWOPegasus Long Marie Curie Fellowship. H.S. and R.T.S. acknowledge support from TUBITAK through Project No. 114F397. H.S. acknowledges support from Bilim Akademisi – The Science Academy, Turkey, under the BAGEP program. ; |
Approved |
Most recent IF: 3.836 |
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Call Number |
UA @ lucian @ c:irua:138205 |
Serial |
4364 |
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Permanent link to this record |
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Author |
Dirtu, A.C.; Buczyńska, A.J.; Godoi, A.F.L.; Favoreto, R.; Bencs, L.; Potgieter-Vermaak, S.S.; Godoi, R.H.M.; Van Grieken, R.; Van Vaeck, L. |
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Title |
Methods, fluxes and sources of gas phase alkyl nitrates in the coastal air |
Type |
A1 Journal article |
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Year |
2014 |
Publication |
Environmental monitoring and assessment |
Abbreviated Journal |
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Volume |
186 |
Issue |
10 |
Pages |
6445-6457 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Toxicological Centre |
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Abstract |
The daily and seasonal atmospheric concentrations, deposition fluxes and emission sources of a few C3C9 gaseous alkyl nitrates (ANs) at the Belgian coast (De Haan) on the Southern North Sea were determined. An adapted sampler design for low- and high-volume air-sampling, optimized sample extraction and clean-up, as well as identification and quantification of ANs in air samples by means of gas chromatography mass spectrometry, are reported. The total concentrations of ANs ranged from 0.03 to 85 pptv and consisted primarily of the nitro-butane and nitro-pentane isomers. Air mass backward trajectories were calculated by the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model to determine the influence of main air masses on AN levels in the air. The shorter chain ANs have been the most abundant in the Atlantic/Channel/UK air masses, while longer chain ANs prevailed in continental air. The overall mean N fluxes of the ANs were slightly higher for summer than those for winter-spring, although their contributions to the total nitrogen flux were low. High correlations between AN and HNO2 levels were observed during winter/spring. During summer, the shorter chain ANs correlated well with precipitation. Source apportionment by means of principal component analysis indicated that most of the gas phase ANs could be attributed to traffic/combustion, secondary photochemical formation and biomass burning, although marine sources may also have been present and a contributing factor. |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Wos |
000341497800035 |
Publication Date |
2014-06-21 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1420-2026; 1573-2967 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:118906 |
Serial |
8224 |
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Permanent link to this record |
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Author |
Vertes, A.; Gijbels, R. |
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Title |
Methods using low and medium laser irradiance: laser-induced thermal desorption and matrix-assisted methods |
Type |
H3 Book chapter |
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Year |
1993 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
127-175 |
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Keywords |
H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
Wiley |
Place of Publication |
New York |
Editor |
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Language |
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Wos |
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Publication Date |
0000-00-00 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ lucian @ c:irua:7325 |
Serial |
2019 |
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Permanent link to this record |
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Author |
van Landuyt, J.; Kuypers, S.; van Heurck, C.; Van Tendeloo, G.; Amelinckx, S. |
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Title |
Methods of structural analysis of modulated structures and quasicrystals |
Type |
H3 Book chapter |
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Year |
1993 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
205-224 |
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Keywords |
H3 Book chapter; Electron microscopy for materials research (EMAT) |
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Abstract |
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Publisher |
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Place of Publication |
s.l. |
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Language |
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Wos |
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Publication Date |
0000-00-00 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
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ISBN |
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Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ lucian @ c:irua:6781 |
Serial |
2018 |
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Permanent link to this record |
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Author |
Bencs, L.; Ravindra, K.; Van Grieken, R. |
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Title |
Methods for the determination of platinum group elements originating from the abrasion of automotive catalytic converters |
Type |
A1 Journal article |
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Year |
2003 |
Publication |
Spectrochimica acta: part B : atomic spectroscopy |
Abbreviated Journal |
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Volume |
58 |
Issue |
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Pages |
1723-1755 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
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Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000186471700001 |
Publication Date |
2003-10-25 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0584-8547; 1873-3565 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
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Open Access |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:43520 |
Serial |
8225 |
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Permanent link to this record |