| Records |
| Author |
Daems, E. |
| Title |
Shaping up oligonucleotides : aptamer-target recognition investigated by native mass spectrometry |
Type |
Doctoral thesis |
| Year |
2021 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
235 p. |
Keywords  |
Doctoral thesis; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
Aptamers are short, synthetic DNA or RNA molecules that are characterized by a specific 3D conformation which enables specific target recognition. Aptamers are promising tools in many application fields from sensing to therapeutics. One of the major challenges in the aptamer field is understanding the relationship between the sequence and what determines the higher-order structure and specific interactions with targets. Therefore, this PhD thesis focuses on the use of different mass spectrometry (MS) based approaches to characterize aptamers and their interactions. Several of these approaches are already widely applied to study other biomolecules, such as proteins, but are still largely unexplored for aptamers and oligonucleotides in general. A first focus was put on obtaining information on the higher-order structure and conformational stability of aptamers using a combination of MS and with ion mobility (IM) spectrometry by performing collision-induced unfolding (CIU) experiments. CIU was shown to hold great promise to analyze the conformational dynamics and gas-phase stabilities of aptamers. Next, the capabilities and limitations of native IM-MS for the analysis of noncovalent interactions of aptamers were demonstrated. The conformational behavior and interactions of cocaine-binding aptamers were studied and it was found that relative binding affinities of aptamers that only differ slightly in sequence and structure can be determined using native MS. Moreover, native IM-MS allowed the detection of small conformational changes upon binding of a target, which were found to be dependent on the binding mode of the aptamer. An adaptive binding mechanism was suggested for flexible aptamers that require more reorganization upon binding. In the final part of this thesis, the importance of thoroughly characterizing and validating aptamer-target interactions before using them in an application was emphasized. Moreover, the gathered insights were applied in our own development of a proof-of-concept aptamer-based sensor. This was shown by investigating the interactions of ampicillin aptamers which were found to not bind the target they were selected for in the first place. A multi-analytical approach combining complementary techniques was used for this purpose since no single technique is generally applicable to characterize all aptamers and their interactions and to obtain a comprehensive picture of the aptamer-target interactions. Furthermore, such multi-analytical approach was used to characterize a testosterone-binding aptamer while developing an aptamer-based electrochemiluminescent sensing strategy for this target. This shows the importance of native MS, in combination with other techniques, to thoroughly understand the aptamer-target interactions in the development of a designed application. |
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Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:178116 |
Serial |
8517 |
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| Author |
Piñera Hernández, I. |
| Title |
Simulation of atom displacements induced by photons and electrons in solids |
Type |
Doctoral thesis |
| Year |
2014 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
137 p. |
| Keywords |
Doctoral thesis; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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no |
| Call Number |
UA @ admin @ c:irua:116687 |
Serial |
8526 |
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| Author |
Amiri-Aref, M. |
| Title |
Utilization of magnetic nanoparticles and carbon nanotubes to fabrication electrochemical sensors for determination of some important biological and pharmaceutical compounds |
Type |
Doctoral thesis |
| Year |
2015 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
137 p. |
| Keywords |
Doctoral thesis; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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no |
| Call Number |
UA @ admin @ c:irua:128299 |
Serial |
8727 |
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| Author |
van der Snickt, G. |
| Title |
James Ensor's pigments studied by means of portable and synchrotron radiation-based X-ray techniques : evolution, context and degradation |
Type |
Doctoral thesis |
| Year |
2012 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
501 p. |
| Keywords |
Doctoral thesis; Art; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Approved |
no |
| Call Number |
UA @ admin @ c:irua:100628 |
Serial |
8135 |
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| Author |
Vandelannoote, R.; Blommaert, W.; van Grieken, R.; Gijbels, R. |
| Title |
L'analyse des eaux géothermales par spectrométrie de masse à étincelles |
Type |
A3 Journal article |
| Year |
1979 |
Publication |
Spectra 2000: la revue de l'instrumentation |
Abbreviated Journal |
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| Volume |
53 |
Issue |
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Pages |
66 |
| Keywords |
A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Place of Publication |
Paris |
Editor |
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Publication Date |
0000-00-00 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0399-1172 |
ISBN |
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Approved |
no |
| Call Number |
UA @ lucian @ c:irua:116645 |
Serial |
98 |
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| Author |
Vandelannoote, R.; Blommaert, W.; Gijbels, R.; van Grieken, R. |
| Title |
Analysis of geothermal waters by spark source mass spectrometry |
Type |
A3 Journal article |
| Year |
1981 |
Publication |
Fresenius' Zeitschrift für analytische Chemie |
Abbreviated Journal |
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| Volume |
309 |
Issue |
4 |
Pages |
291-294 |
| Keywords |
A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
Although the analysis of thermal water by spark-source mass spectrometry (SSMS) is rather timeconsuming, it allows the detection of about 20 elements of geochemical interest down to the ppb-level. A physical preconcentration is proposed in order to collect elements having quite different chemical properties, e.g. alkalis, transition elements, and elements occurring in anionic form. The relative sensitivity factors appear to be rather independent of the salt content of the graphite electrodes. Contrary to neutron activation analysis, SSMS has a quite uniform elemental sensitivity, and allows to determine elements for which neutron activation is not suitable, e.g. Sn and Pb. The precision of SSMS is however by a factor of about 2 worse than that obtained for neutron activation. |
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Place of Publication |
München |
Editor |
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Wos |
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Publication Date |
2004-11-15 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0016-1152;1618-2650; |
ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
8 |
Open Access |
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| Notes |
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Approved |
no |
| Call Number |
UA @ lucian @ c:irua:116638 |
Serial |
100 |
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| Author |
Blommaert, W.; Vandelannoote, R.; Van 't dack, L.; Gijbels, R.; van Grieken, R. |
| Title |
Relative evaluation of neutron activation, X-ray fluorescence and spark source mass spectrometry for multi-element analysis of geothermal waters |
Type |
A3 Journal article |
| Year |
1980 |
Publication |
Journal of radioanalytical chemistry |
Abbreviated Journal |
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| Volume |
57 |
Issue |
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Pages |
382-400 |
| Keywords |
A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Place of Publication |
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Wos |
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Publication Date |
0000-00-00 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0134-0719 |
ISBN |
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Approved |
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| Call Number |
UA @ lucian @ c:irua:111432 |
Serial |
2859 |
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| Author |
Vandelannoote, R.; Blommaert, W.; Van 't dack, L.; Gijbels, R.; van Grieken, R. |
| Title |
Statistical grouping and controlling factors of dissolved trace elements in a surface water system |
Type |
A3 Journal article |
| Year |
1983 |
Publication |
Environmental technology letters |
Abbreviated Journal |
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| Volume |
4 |
Issue |
8/9 |
Pages |
363-376 |
| Keywords |
A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
Sensitive multi‐element analytical techniques were applied to determine 24 dissolved trace components in 25 different water samples from a 10 km2 zone in Brittany, France. Correspondence factor and multiple regression analyses showed that the elements considered are influenced mainly by the presence of: Fe‐Mn oxide accumulations, a local poly‐metallic sulfide mineralization, and non‐mineralized host rocks, agricultural activity and abundant organic material in local swamps. Via these numerical techniques the location of the poly‐metallic ore body can be derived from the data set. |
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Place of Publication |
London |
Editor |
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Wos |
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Publication Date |
2008-12-17 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0143-2060; |
ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
1 |
Open Access |
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| Notes |
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Approved |
PHYSICS, APPLIED 28/145 Q1 # |
| Call Number |
UA @ lucian @ c:irua:111443 |
Serial |
3157 |
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| Author |
Shani, J.; Livshitz, T.; Robberecht, H.; Van Grieken, R.; Rubinstein, N.; Even-Paz, Z. |
| Title |
Increased erythrocyte glutathione peroxidase activity in psoriatics consuming high-selenium drinking water at the dead-sea psoriasis treatment center |
Type |
A3 Journal article |
| Year |
1985 |
Publication |
Pharmacological research communications |
Abbreviated Journal |
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| Volume |
17 |
Issue |
5 |
Pages |
479-488 |
| Keywords |
A3 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
Erythrocyte selenium-dependent glutathione peroxidase activity was measured in psoriatic Danes, before and after their four-week balneological therapy at the Ein-Bokek International Psoriasis Treatment Center, on the Dead-Sea shore in Israel. The drinking water in Ein-Bokek was found to be rich in selenium, a trace element with anticarcinogenic properties and of great importance in human nutrition and health. The most reliable biological parameter for increase in selenium bioavailability is the erythrocytes' glutathione-peroxidase activity. As psoriasis is a proliferative skin disease, the activity of this enzyme was assayed in 35 psoriatic Danes and in 25 long-term local hotel workers, as well as in 34 volunteers drinking low-selenium water. The glutathione peroxidase activity in the psoriatic patients increased significantly during their four-week stay in Ein-Bokek. Erythrocyte glutathione peroxidase activity in the hotel workers was 50% higher than that in the healthy volunteers consuming low-selenium water. A possible role of selenium in psoriasis is suggested. |
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Place of Publication |
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Wos |
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Publication Date |
2004-10-04 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0031-6989 |
ISBN |
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Additional Links |
UA library record |
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| Notes |
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Approved |
no |
| Call Number |
UA @ admin @ c:irua:116758 |
Serial |
8076 |
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| Author |
Vandeputte, D.F.; Verbueken, A.H.; Jacob, W.A.; Van Grieken, R.E. |
| Title |
Laser microprobe mass analysis (LAMMA) to study lead intoxication at the subcellular level |
Type |
A3 Journal article |
| Year |
1986 |
Publication |
Acta pharmacologica et toxicologica |
Abbreviated Journal |
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| Volume |
59 |
Issue |
S:7 |
Pages |
617-619 |
| Keywords |
A3 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Publication Date |
2010-07-29 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0001-6683 |
ISBN |
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Additional Links |
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Approved |
no |
| Call Number |
UA @ admin @ c:irua:116771 |
Serial |
8158 |
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| Author |
Robberecht, H.; Deelstra, H.; vanden Berghe, D.; Van Grieken, R. |
| Title |
Selenium gehalten van levensmiddelen geconsumeerd in België |
Type |
A3 Journal article |
| Year |
1983 |
Publication |
Revue des fermentations et des industries alimentaires |
Abbreviated Journal |
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| Volume |
37 |
Issue |
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Pages |
188-201 |
| Keywords |
A3 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
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Place of Publication |
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Publication Date |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0035-2071 |
ISBN |
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Additional Links |
UA library record |
| 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 |
| Call Number |
UA @ admin @ c:irua:116701 |
Serial |
8507 |
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| Author |
Shani, J.; Barak, S.; Levi, D.; Ram, M.; Schachner, E.R.; Schlesinger, T.; Robberecht, H.; Van Grieken, R.; Avrach, W.W. |
| Title |
Skin penetration of minerals in psoriatics and guinea-pigs bathing in hypertonic salt solutions |
Type |
A3 Journal article |
| Year |
1985 |
Publication |
Pharmacological research communications |
Abbreviated Journal |
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| Volume |
17 |
Issue |
6 |
Pages |
501-512 |
| Keywords |
A3 Journal article; Pharmacology. Therapy; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
Penetration of electrolytes through the human skin was measured in healthy volunteers and in psoriatic patients after bathing in the Dead-Sea or in simulated bath-salt solutions. Significant increases in the levels of serum Br, Rb, Ca and Zn were noticed only in the psoriatic patients after daily bathing in the Dead-Sea for a 4-week regimen. Guinea-pigs bathed in simulated Dead-Sea bath-salt solutions containing radionuclides of Ca, Mg, K and Br. Traces of each radionuclide were detected in the blood and in some internal organs after 60 minutes of bathing. The radionuclides showed a physiological pattern in their organ distribution. Even though the whole investigation was carried out in hypertonic solutions, there is a definite penetration of salts through healthy (human and guinea-pigs) and damaged (psoriatic) epidermis. This finding suggests that improvement of the psoriatic condition after bathing in the Dead-Sea, may be partly attributed (in addition to ultraviolet irradiation) to the minerals' effect on the psoriatic skin. |
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Publication Date |
2006-07-20 |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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| ISSN |
0031-6989 |
ISBN |
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Additional Links |
UA library record |
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Times cited |
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Open Access |
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Approved |
no |
| Call Number |
UA @ admin @ c:irua:116755 |
Serial |
8547 |
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| Author |
Godoi, R.H.M.; Godoi, A.F.L.; Andrade, S.J.; Santiago-Silva, M.; de Hoog, J.; Worobiec, A.; Van Grieken, R. |
| Title |
Assessment of atmospheric particles emitted from sugar cane burning in Southeast Brazil |
Type |
A3 Journal article |
| Year |
2003 |
Publication |
Journal od aerosol science |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
S749-S750 |
| Keywords |
A3 Journal article; Laboratory Experimental Medicine and Pediatrics (LEMP); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Open Access |
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Approved |
no |
| Call Number |
UA @ admin @ c:irua:45364 |
Serial |
7502 |
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| Author |
Samek, L.; Worobiec, A.; Spolnik, Z.; Van Grieken, R. |
| Title |
Badanie składu powietrza w zabytkowych kościołach |
Type |
A3 Journal article |
| Year |
2006 |
Publication |
Analytika |
Abbreviated Journal |
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| Volume |
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Issue |
3 |
Pages |
26-29 |
| Keywords |
A3 Journal article; Laboratory Experimental Medicine and Pediatrics (LEMP); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Additional Links |
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Times cited |
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Open Access |
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Approved |
no |
| Call Number |
UA @ admin @ c:irua:59130 |
Serial |
7547 |
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| Author |
Osán, J.; Alföldy, B.; Kurunczi, S.; Török, S.; Bozó, L.; Worobiec, A.; Injuk, J.; Van Grieken, R. |
| Title |
Characterization of atmospheric aerosol particles over Lake Balaton, Hungary, using X-ray emission methods |
Type |
A3 Journal article |
| Year |
2001 |
Publication |
Idöjárás: quarterly journal of the Hungarian Meteorological Service |
Abbreviated Journal |
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| Volume |
105 |
Issue |
3 |
Pages |
145-156 |
| Keywords |
A3 Journal article; Laboratory Experimental Medicine and Pediatrics (LEMP); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Edition |
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UA library record |
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Times cited |
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Open Access |
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Approved |
no |
| Call Number |
UA @ admin @ c:irua:36090 |
Serial |
7618 |
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| Author |
Verbueken, A.H.; van de Vijver, F.L.; de Broe, M.E.; Van Grieken, R.E. |
| Title |
Applications of laser microprobe mass analysis in medicine |
Type |
A3 Journal article |
| Year |
1987 |
Publication |
CRC critical reviews in clinical laboratory sciences |
Abbreviated Journal |
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| Volume |
24 |
Issue |
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Pages |
263-285 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
| Abstract |
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| Address |
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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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Wos |
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Publication Date |
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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 |
0590-8191 |
ISBN |
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Additional Links |
UA library record |
| 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 |
| Call Number |
UA @ admin @ c:irua:116775 |
Serial |
7485 |
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| Author |
Kontozova, V.; Godoi, R.H.M.; Spolnik, Z.; Worobiec, A.; Deutsch, F.; Van Grieken, R. |
| Title |
Characterization of air pollutants observed in three European cathedrals: is the protective glazing really effective? |
Type |
A3 Journal article |
| Year |
2005 |
Publication |
Rivista della Stazione sperimentale del vetro |
Abbreviated Journal |
|
| Volume |
3 |
Issue |
|
Pages |
13-20 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
| Abstract |
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| Address |
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Thesis |
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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 |
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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 |
0391-4259 |
ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
no |
| Call Number |
UA @ admin @ c:irua:54920 |
Serial |
7615 |
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| |
| Author |
Verbueken, A.H.; Van Grieken, R.E.; Paulus, G.J.; Verpooten, G.A.; de Broe, M.E. |
| Title |
Laser microprobe mass spectrometry of platinum in dog kidney after cisplatin adminstration |
Type |
A3 Journal article |
| Year |
1984 |
Publication |
Biomedical mass spectrometry |
Abbreviated Journal |
|
| Volume |
11 |
Issue |
4 |
Pages |
159-163 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
| Abstract |
By means of laser microprobe mass analysis (LAMMA) platinum was detected in the renal proximal tubular cells of a dog that had been intravenously adminstered the antitumor drug cisplatin (5 mg per kg body weight). No definite subcellular localization of the heavy metal was obtained. Sample prparation and analytical features are examined to increase spatial resolution of analysis while maintaining sufficient detection efficiency. The LAMMA method is destructive, but the amount and type of evaporated material can readily be determined when using LAMMA in combination with transmission electron microscopy. Instrumental optimization and standardization of mass signals is possible by using platinum-loaded, ion chelating resin beads embedded and sectioned with the tissue. |
| Address |
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| Corporate Author |
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Thesis |
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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 |
2005-05-28 |
| 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 |
0306-042x |
ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
no |
| Call Number |
UA @ admin @ c:irua:116712 |
Serial |
8165 |
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| |
| Author |
Van Grieken, R.; Potgieter-Vermaak, S.; Darchuk, L.; Worobiec, A. |
| Title |
X ray fluorescence in member states: Belgium: integration of analysis techniques of different scales using X ray induced and electron induced X ray spectrometry for applications in preventive conservation and environmental monitoring |
Type |
A3 Journal article |
| Year |
2009 |
Publication |
XRF newsletter |
Abbreviated Journal |
|
| Volume |
|
Issue |
18 |
Pages |
9-13 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
| Abstract |
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| Address |
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| Corporate Author |
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Thesis |
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Place of Publication |
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Editor |
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Wos |
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Publication Date |
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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 |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
no |
| Call Number |
UA @ admin @ c:irua:81898 |
Serial |
8766 |
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| |
| Author |
Padilla, R.; Janssens, K.; van Espen, P.; Van Grieken, R. |
| Title |
XRS activities at the Micro & Trace Analysis Centre (MiTAC), University of Antwerp, Belgium |
Type |
A3 Journal article |
| Year |
2006 |
Publication |
IAEA XRF newsletter |
Abbreviated Journal |
|
| Volume |
12 |
Issue |
|
Pages |
13-16 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3) |
| Abstract |
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| Address |
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Thesis |
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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 |
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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 |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:65080 |
Serial |
5921 |
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| Author |
Annegarn, H.; Van Grieken, R.; van Espen, P.; von Blottnitz, F.; Sellschop, J.; Winchester, J.; Maenhaut, W. |
| Title |
Background aerosol composition at Gobabeb, South West Africa |
Type |
A3 Journal article |
| Year |
1976 |
Publication |
Madoqua |
Abbreviated Journal |
|
| Volume |
|
Issue |
2 |
Pages |
107-118 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3) |
| 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 |
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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 |
1011-5498 |
ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
no |
| Call Number |
UA @ admin @ c:irua:116512 |
Serial |
7544 |
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| Author |
Muhammad, S.; Wuyts, K.; De Wael, K.; Samson, R. |
| Title |
Does leaf micro-morphology influence the recognition of particles on SEM images? |
Type |
A3 Journal article |
| Year |
2021 |
Publication |
International Journal of Environmental Pollution and Remediation |
Abbreviated Journal |
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| Volume |
9 |
Issue |
|
Pages |
22-37 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Antwerp Electrochemical and Analytical Sciences Lab (A-Sense Lab) |
| Abstract |
Scanning electron microscopy (SEM) remains a popular approach to determine the shape, size, density and elemental composition of particles collected on leaf surfaces, but the effect of leaf micro-morphology on particle counts is not very well known. In this study, leaves of sixteen urban plant species were examined for particle density in June and September 2016 using SEM. The investigated plant species differed in leaf micro-morphology involving trichomes, raised stomata, epicuticular wax crystals and convex epidermal cells forming deep grooves between cells. The particle density on leaves of the investigated plant species was estimated by particle size fraction and leaf side. Particle density was significantly higher on the adaxial (AD) leaf side compared to the abaxial (AB) leaf side and higher for fine-particles than coarse-particles. The effect of trichome density on particle density of the AB and the AD leaf side was indicated to be significant and positive for both coarse and fine-particles in June but not in September. The successive repeated measurements elucidated that features constructing the topography of a leaf surface such as trichomes, stomata, and epidermal cells frequently contributed towards the edge enhancement effect, resulting in exaggerated particle counts. Besides, the mechanical drift contributed to the disparity in particle density measurements. Lastly, the reduction in particle density between successive measurements were imputed on the charging effect. These results enable us to suggest that in addition to characterization of micro-morphological features on a leaf surface, SEM will continue to be a useful approach for determining the particle: shape, size, elemental composition and density of the deposited particles. Nonetheless, the disparity in particle density measurements can occur due to abnormal particle recognition. Based on the results of September, we recommend that within-session successive repeated measurements (~ n ≥ 5) need to be performed to remove measurement uncertainties and obtain reliable quantitative data of particle counts using SEM. |
| Address |
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Thesis |
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Place of Publication |
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Editor |
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Wos |
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Publication Date |
2021-09-15 |
| Series Editor |
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Series Title |
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Abbreviated Series Title |
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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 |
| Impact Factor |
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Times cited |
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Open Access |
OpenAccess |
| Notes |
|
Approved |
Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:181797 |
Serial |
7822 |
| Permanent link to this record |
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| Author |
Wagner, B.; Nowak, A.; Bulska, E.; Kunicki-Goldfinger, J.; Schalm, O.; Janssens, K. |
| Title |
Analiza pierwiastkowa zabytkowych obiektów szklanych |
Type |
A3 Journal article |
| Year |
2008 |
Publication |
Nauka i Zabytki |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
71-82 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
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| Address |
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Thesis |
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Place of Publication |
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Editor |
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Wos |
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Publication Date |
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Series Title |
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Abbreviated Series Title |
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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 |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:115027 |
Serial |
5465 |
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| Author |
Aerts, A.; Janssens, K.; Adams, F. |
| Title |
A chemical investigation of altered jade art objects |
Type |
A3 Journal article |
| Year |
1995 |
Publication |
Orientations |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
79-80 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
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| Address |
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Thesis |
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Place of Publication |
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Editor |
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Wos |
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Publication Date |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISBN |
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Additional Links |
UA library record |
| 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 |
| Call Number |
UA @ admin @ c:irua:10989 |
Serial |
5516 |
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| Author |
Vittiglio, G.; Bichlmeier, S.; Klinger, P.; Heckel, J.; Fuzhong, W.; Vincze, L.; Janssens, K.; Engström, P.; Rindby, A.; Dietrich, K.; Jembrih-Simbürger, D.; Schreiner, M.; Denis, D.; Lakdar, A.; Lamotte, A. |
| Title |
A compact μ-XRF spectrometer for (in-situ) analyses of cultural heritage and forensic materials |
Type |
A3 Journal article |
| Year |
2004 |
Publication |
Nuclear instruments and methods in physics research B |
Abbreviated Journal |
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| Volume |
213 |
Issue |
|
Pages |
693-698 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
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Thesis |
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Place of Publication |
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Editor |
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Wos |
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Publication Date |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISBN |
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Additional Links |
UA library record |
| 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 |
| Call Number |
UA @ admin @ c:irua:45374 |
Serial |
5528 |
| Permanent link to this record |
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| Author |
Janssens, K.H.; Adams, F.C.; van Langevelde, F.; Vis, R.D.; Jones, K.W.; Rivers, M.; Sutton, S. |
| Title |
Comparison of synchrotron X-ray microanalysis with electron and proton microscopy for individual particle analysis |
Type |
A3 Journal article |
| Year |
1992 |
Publication |
Advances in X-ray analysis |
Abbreviated Journal |
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| Volume |
35 |
Issue |
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Pages |
1265-1273 |
| Keywords |
A3 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 |
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Publication Date |
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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 |
0376-0308 |
ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
no |
| Call Number |
UA @ admin @ c:irua:2811 |
Serial |
5530 |
| Permanent link to this record |
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| Author |
Janssens, K.; de Raedt, I.; Vincze, L.; Vekemans, B.; Adams, F.; Haller, M.; Knöchel, A. |
| Title |
Composition of 15-17th century archaeological glass vessels excavated in Antwerp, Belgium |
Type |
A3 Journal article |
| Year |
1998 |
Publication |
HASYLAB Jahresbericht 1997 |
Abbreviated Journal |
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| Volume |
1 |
Issue |
|
Pages |
937-938 |
| Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
| Abstract |
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| Address |
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Thesis |
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Place of Publication |
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Editor |
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Wos |
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Publication Date |
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Series Title |
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Abbreviated Series Title |
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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 |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:22763 |
Serial |
5541 |
| Permanent link to this record |
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| Author |
Godoi, R.H.M.; Kontozova, V.; Godoi, A.F.L.; Bencs, L.; Spolnik, Z.; Janssens, K.; Van Grieken, R. |
| Title |
Cultural heritage research in “The Micro and Trace Analysis Center” of the University of Antwerp |
Type |
A3 Journal article |
| Year |
2004 |
Publication |
Coalition |
Abbreviated Journal |
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| Volume |
7 |
Issue |
|
Pages |
11-13 |
| Keywords |
A3 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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Place of Publication |
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Editor |
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Wos |
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Publication Date |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:43880 |
Serial |
5563 |
| Permanent link to this record |
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| Author |
de Raedt, I.; Janssens, K.; Veeckman, J. |
| Title |
Echt of namaak? Venetiaans glas uit het oude Antwerpen |
Type |
A3 Journal article |
| Year |
1999 |
Publication |
De wetenschappelijke bibliotheek |
Abbreviated Journal |
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| Volume |
67 |
Issue |
|
Pages |
58-67 |
| Keywords |
A3 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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Wos |
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Publication Date |
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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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ISBN |
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Additional Links |
UA library record |
| Impact Factor |
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Times cited |
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Open Access |
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| Notes |
|
Approved |
Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:25300 |
Serial |
5579 |
| Permanent link to this record |
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| Author |
Vincze, L.; Vekemans, B.; Janssens, K.; Adams, F.; Lippmann, T. |
| Title |
Evaluation of a Monte Carlo simulation for EDXRF spectrometers at beamline BW5, HASYLAB |
Type |
A3 Journal article |
| Year |
1998 |
Publication |
HASYLAB Jahresbericht 1997 |
Abbreviated Journal |
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| Volume |
1 |
Issue |
|
Pages |
1043-1044 |
| Keywords |
A3 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 |
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Publication Date |
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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 |
| Impact Factor |
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Times cited |
|
Open Access |
|
| Notes |
|
Approved |
Most recent IF: NA |
| Call Number |
UA @ admin @ c:irua:22762 |
Serial |
5610 |
| Permanent link to this record |
