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Author |
Gielis, J. |
![find book details (via ISBN) isbn](img/isbn.gif)
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Title |
The geometrical beauty of plants |
Type |
MA3 Book as author |
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Year |
2017 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
229 p. |
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Keywords |
MA3 Book as author; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Publication Date |
2017-06-01 |
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ISBN |
978-94-6239-150-5; 978-94-6239-151-2 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:144554 |
Serial |
7997 |
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Author |
Lin, S.; Zhang, L.; Reddy, G.V.P.; Hui, C.; Gielis, J.; Ding, Y.; Shi, P. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
A geometrical model for testing bilateral symmetry of bamboo leaf with a simplified Gielis equation |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Ecology and evolution |
Abbreviated Journal |
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Volume |
6 |
Issue |
19 |
Pages |
6798-6806 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
The size and shape of plant leaves change with growth, and an accurate description of leaf shape is crucial for describing plant morphogenesis and development. Bilateral symmetry, which has been widely observed but poorly examined, occurs in both dicot and monocot leaves, including all nominated bamboo species (approximately 1,300 species), of which at least 500 are found in China. Although there are apparent differences in leaf size among bamboo species due to genetic and environmental profiles, bamboo leaves have bilateral symmetry with parallel venation and appear similar across species. Here, we investigate whether the shape of bamboo leaves can be accurately described by a simplified Gielis equation, which consists of only two parameters (leaf length and shape) and produces a perfect bilateral shape. To test the applicability of this equation and the occurrence of bilateral symmetry, we first measured the leaf length of 42 bamboo species, examining >500 leaves per species. We then scanned 30 leaves per species that had approximately the same length as the median leaf length for that species. The leaf-shape data from scanned profiles were fitted to the simplified Gielis equation. Results confirmed that the equation fits the leaf-shape data extremely well, with the coefficients of determination being 0.995 on average. We further demonstrated the bilateral symmetry of bamboo leaves, with a clearly defined leaf-shape parameter of all 42 bamboo species investigated ranging from 0.02 to 0.1. This results in a simple and reliable tool for precise determination of bamboo species, with applications in forestry, ecology, and taxonomy. |
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Wos |
000385626100003 |
Publication Date |
2016-09-02 |
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Edition |
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ISSN |
2045-7758 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:144547 |
Serial |
7998 |
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Author |
Van Grieken, R.; Speecke, A.; Hoste, J. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Geometry errors in 14 MeV neutron activation analysis |
Type |
A3 Journal article |
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Year |
1973 |
Publication |
Journal of radioanalytical chemistry |
Abbreviated Journal |
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Volume |
13 |
Issue |
1 |
Pages |
225-233 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The effects of inaccurate sample sizes and sample positioning on 14 MeV neutron activation analysis results are estimated for 30, 20 and 10 mm diameter targets. It appears that axial positioning is the most critical parameter and that using a larger tritium target will yield an overall improvement of the reproducibility. |
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Publication Date |
2006-10-11 |
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Edition |
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ISSN |
0134-0719; 2064-2857 |
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Additional Links |
UA library record |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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no |
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Call Number |
UA @ admin @ c:irua:116453 |
Serial |
7999 |
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Author |
Van Grieken, R.E.; Johansson, T.B.; Akselsson, K.R.; Winchester, J.W.; Nelson, J.W.; Chapman, K.R. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Geophysical applicability of aerosol size distribution measurements using cascade impactors and proton-induced X-ray-emission |
Type |
A1 Journal article |
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Year |
1976 |
Publication |
Atmospheric environment : an international journal |
Abbreviated Journal |
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Volume |
10 |
Issue |
8 |
Pages |
571-576 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Proton Induced X-ray Emission, (PIXE), is capable of high precision analysis for trace element components of aerosol particle size fractions sampled by cascade impactor. A statistical evaluation of data quality has been carried out in order to distinguish between analytical uncertainties in the PIXE procedure, errors caused by cascade impactor performance and by other factors in the sampling procedure, and geophysical causes of differences in composition and particle size distributions of the elements in aerosols. Replicate analyses and simultaneous samplings taken in north Florida and St. Louis have been used for the data evaluation. In addition to the analytical error the sampling procedure contributes an error of ~ 10% to be added quadratically. The resulting precision is sufficient to evaluate the data in geophysical terms. This is illustrated by means of sample sets taken simultaneously in an urban, forest and coastal environment of the same region. |
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Wos |
A1976BZ75500001 |
Publication Date |
2003-08-06 |
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Edition |
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ISSN |
1352-2310 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:113636 |
Serial |
8000 |
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Permanent link to this record |
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Author |
Mabesoone, J.M.; Duarte, P.J.; Van Grieken, R.; Delgao, A.; Freire, E.M.P. |
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Title |
Geoquimica dos microclasticos da Bacio do Parnaiba |
Type |
H3 Book chapter |
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Year |
1985 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
30-31
T2 - Fanerozoico Nordestino : serie D |
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Keywords |
H3 Book chapter; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:117502 |
Serial |
8001 |
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Permanent link to this record |
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Author |
Roekens, E.; Van Grieken, R. |
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Title |
Gevolgen van luchtverontreiniging op historische gebouwen |
Type |
A2 Journal article |
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Year |
1987 |
Publication |
Ons erfdeel |
Abbreviated Journal |
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Volume |
30 |
Issue |
2 |
Pages |
361-366 |
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Keywords |
A2 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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ISSN |
0030-2651 |
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UA library record |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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no |
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Call Number |
UA @ admin @ c:irua:116776 |
Serial |
8003 |
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Author |
Mortier, S.T.F.C.; Van Hoey, S.; Cierkens, K.; Gernaey, K.V.; Seuntjens, P.; De Baets, B.; De Beer, T.; Nopens, I. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
A GLUE uncertainty analysis of a drying model of pharmaceutical granules |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
European journal of pharmaceutics and biopharmaceutics |
Abbreviated Journal |
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Volume |
85 |
Issue |
3:b |
Pages |
984-995 |
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Keywords |
A1 Journal article; Pharmacology. Therapy; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
A shift from batch processing towards continuous processing is of interest in the pharmaceutical industry. However, this transition requires detailed knowledge and process understanding of all consecutive unit operations in a continuous manufacturing line to design adequate control strategies. This can be facilitated by developing mechanistic models of the multi-phase systems in the process. Since modelling efforts only started recently in this field, uncertainties about the model predictions are generally neglected. However, model predictions have an inherent uncertainty (i.e. prediction uncertainty) originating from uncertainty in input data, model parameters, model structure, boundary conditions and software. In this paper, the model prediction uncertainty is evaluated for a model describing the continuous drying of single pharmaceutical wet granules in a six-segmented fluidized bed drying unit, which is part of the full continuous from-powder-to-tablet manufacturing line (Consigma (TM), GEA Pharma Systems). A validated model describing the drying behaviour of a single pharmaceutical granule in two consecutive phases is used. First of all, the effect of the assumptions at the particle level on the prediction uncertainty is assessed. Secondly, the paper focuses on the influence of the most sensitive parameters in the model. Finally, a combined analysis (particle level plus most sensitive parameters) is performed and discussed. To propagate the uncertainty originating from the parameter uncertainty to the model output, the Generalized Likelihood Uncertainty Estimation (GLUE) method is used. This method enables a modeller to incorporate the information obtained from the experimental data in the assessment of the uncertain model predictions and to find a balance between model performance and data precision. A detailed evaluation of the obtained uncertainty analysis results is made with respect to the model structure, interactions between parameters and uncertainty boundaries. (C) 2013 Elsevier B.V. All rights reserved. |
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Wos |
000330200800019 |
Publication Date |
2013-03-29 |
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Edition |
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ISSN |
0939-6411 |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:114876 |
Serial |
8005 |
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Permanent link to this record |
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Author |
Callebaut, D.K.; Makarovska, Y.; Tlatov |
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Title |
Gravitational energy of solar oscillations and climatic changes |
Type |
P1 Proceeding |
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Year |
2000 |
Publication |
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Abbreviated Journal |
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Volume |
463 |
Issue |
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Pages |
297-300
T2 - 1st Solar and Space Weather Euroconfe |
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Keywords |
P1 Proceeding; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The gravitational energy associated with variations in the radius of the Sun is huge: with a relative change of 1/2000 (the estimated difference between maximum and minimum solar activity) and taking only the convection zone to expand, corresponds to about 2 10(34)J, which is 1/10 of the total rotational energy of the Sun. Non-radial oscillations with a tiny nonlinearity can still yield energies comparable to or larger than the total magnetic energy of a full sunspot cycle or three or four orders more than the luminosity of the Sun, but that is not sufficient to account for the changes of the temperature on Earth. The expansion of the upper layers of the convection zone, however, may directly or indirectly affect the climate and the biological aspects on the Earth. Moreover this suits a qualitative explanation why the Sun expands during a minimum of the magnetic activity. |
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Wos |
000168300800040 |
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ISSN |
92-9092-693-7 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:95767 |
Serial |
8006 |
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Author |
Bekshaev, A.; de Hoog, J.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Grazing-emission electron probe microanalysis of particles near the substrate edge |
Type |
A1 Journal article |
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Year |
2001 |
Publication |
Spectrochimica acta: part B : atomic spectroscopy |
Abbreviated Journal |
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Volume |
56 |
Issue |
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Pages |
2385-2395 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000173118900005 |
Publication Date |
2002-07-25 |
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Edition |
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ISSN |
0584-8547; 1873-3565 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:36384 |
Serial |
8007 |
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Author |
Tsuji, K.; Wagatsuma, K.; Nullens, R.; Van Grieken, R.E. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Grazing exit electron probe microanalysis for surface and particle analysis |
Type |
A1 Journal article |
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Year |
1999 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
71 |
Issue |
13 |
Pages |
2497-2501 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000081265600046 |
Publication Date |
2002-07-26 |
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ISSN |
0003-2700; 5206-882x |
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UA library record; WoS full record; WoS citing articles |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Call Number |
UA @ admin @ c:irua:24723 |
Serial |
8008 |
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Author |
Spolnik, Z.; Tsuji, K.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Grazing-exit electron probe x-ray microanalysis of light elements in particles |
Type |
A1 Journal article |
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Year |
2004 |
Publication |
X-ray spectrometry |
Abbreviated Journal |
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Volume |
33 |
Issue |
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Pages |
16-20 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Wos |
000188743100004 |
Publication Date |
2004-01-21 |
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Edition |
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ISSN |
0049-8246 |
ISBN |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:43524 |
Serial |
8009 |
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Author |
Tsuji, K.; Spolnik, Z.; Wagatsuma, K.; Van Grieken, R.E.; Vis, R.D. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Grazing-exit particle-induced X-ray emission analysis with extremely low background |
Type |
A1 Journal article |
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Year |
1999 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
71 |
Issue |
22 |
Pages |
5033-5036 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000083647100004 |
Publication Date |
2002-07-26 |
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Series Volume |
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Edition |
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ISSN |
0003-2700; 5206-882x |
ISBN |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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no |
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Call Number |
UA @ admin @ c:irua:27588 |
Serial |
8010 |
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Permanent link to this record |
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Author |
Akbulut, S.; Krupinska, B.; Worobiec, A.; Čevik, U.; Taskin, H.; Van Grieken, R.; Samek, L.; Wiłkojć, E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Gross alpha and beta activities of airborne particulate samples from Wawel Royal Castle Museum in Cracow, Poland |
Type |
A1 Journal article |
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Year |
2013 |
Publication |
Journal of radioanalytical and nuclear chemistry |
Abbreviated Journal |
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Volume |
295 |
Issue |
2 |
Pages |
1567-1573 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP) |
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Abstract |
Soils are complex mixtures of organic, inorganic materials, and metal compounds from anthropogenic sources. In order to identify the pollution sources, their magnitude and development, several X-ray analytical methods were applied in this study. The concentrations of 16 elements were determined in all the soil samples using energy dispersive X-ray fluorescence spectrometry. Soils of unknown origin were observed by scanning electron microscopy equipped with a Si(Li) X-ray detector using Monte Carlo simulation approach. The mineralogical analyses were carried out using X-ray diffraction spectrometry. Due to the correlations between heavy metals and oxide compounds, the samples were analyzed also by electron probe microanalyzer (EPMA) in order to have information about their oxide contents. On the other hand, soil pH and salinity levels were identified owing to their influence between heavy metal and soil-surface chemistry. Moreover, the geoaccumulation index (I geo) enables the assessment of contamination by comparing current and pre-industrial concentrations. |
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Wos |
000313713300105 |
Publication Date |
2012-07-24 |
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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 |
0236-5731; 1588-2780 |
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:106763 |
Serial |
8012 |
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Permanent link to this record |
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Author |
Grunert, O.; Reheul, D.; Van Labeke, M.-C.; Perneel, M.; Hernandez-Sanabria, E.; Vlaeminck, S.E.; Boon, N. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Growing media constituents determine the microbial nitrogen conversions in organic growing media for horticulture |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Microbial Biotechnology |
Abbreviated Journal |
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Volume |
9 |
Issue |
3 |
Pages |
389-399 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; Sustainable Energy, Air and Water Technology (DuEL) |
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Abstract |
Vegetables and fruits are an important part of a healthy food diet, however, the eco-sustainability of the production of these can still be significantly improved. European farmers and consumers spend an estimated Euro15.5 billion per year on inorganic fertilizers and the production of N-fertilizers results in a high carbon footprint. We investigated if fertilizer type and medium constituents determine microbial nitrogen conversions in organic growing media and can be used as a next step towards a more sustainable horticulture. We demonstrated that growing media constituents showed differences in urea hydrolysis, ammonia and nitrite oxidation and in carbon dioxide respiration rate. Interestingly, mixing of the growing media constituents resulted in a stimulation of the function of the microorganisms. The use of organic fertilizer resulted in an increase in amoA gene copy number by factor 100 compared to inorganic fertilizers. Our results support our hypothesis that the activity of the functional microbial community with respect to nitrogen turnover in an organic growing medium can be improved by selecting and mixing the appropriate growing media components with each other. These findings contribute to the understanding of the functional microbial community in growing media and its potential role towards a more responsible horticulture. |
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Wos |
000374662600009 |
Publication Date |
2016-03-23 |
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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 |
1751-7907 |
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:133617 |
Serial |
8013 |
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Permanent link to this record |
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Author |
Hoornaert, S.; van Malderen, H.; Van Grieken, R. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Gypsum and other calcium-rich particles above the North Sea |
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 |
1515-1520 |
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Keywords |
A1 Journal article; Engineering sciences. Technology; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Ca-containing particles, especially CaSO4 particles, have been encountered in several atmospheric aerosol studies. An overview is given of the different sources of airborne Ca-containing particles, The North Sea atmosphere is studied to identify the different Ca-containing particle types and to find the correlation between their occurrence and the source regions of the corresponding air masses. About 50000 individual aerosol samples were collected above the Southern Eight of the North Sea for several wind directions and analyzed for their composition using electron probe X-ray microanalysis. Nonhierarchical cluster analysis is performed on the data to reveal the different particle types, their relative abundances and their sources. CaSO4 in most cases constitutes the largest fraction of the Ca-containing particles. Extremely high numbers of CaSO4 particles are found for northeastern winds, coming from the central part of Germany, suggesting that a great fraction is derived from anthropogenic sources located in this region. Among the other Ca-containing particle types are the aluminosilicates, CaCO3, Fe-Ca-rich particles, and CaSO4 or CaCO3 in combination with NaCl. |
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Wos |
A1996UG95400042 |
Publication Date |
2002-07-26 |
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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 |
0013-936x; 1520-5851 |
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:14647 |
Serial |
8015 |
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Permanent link to this record |
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Author |
Van Schandevijl, R.; Van Grieken, R.; Hoste, J. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
The half-life of 28Al |
Type |
A3 Journal article |
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Year |
1971 |
Publication |
Journal of radioanalytical chemistry |
Abbreviated Journal |
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Volume |
9 |
Issue |
1 |
Pages |
55-60 |
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Keywords |
A3 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The half-life of28Al was redetermined on aluminium samples of different origin. Three different counting techniques were applied. The availability of highly purified samples (up to 99.9999%), the use of very fast electronic counting equipment and a complete automatisation allowed a good precision to be obtained in the final result of 2.2405 min. |
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Wos |
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Publication Date |
2006-10-11 |
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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 |
0134-0719; 2064-2857 |
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116451 |
Serial |
8016 |
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Permanent link to this record |
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Author |
Van Grieken, R.E.; Markowicz, A.A. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Handbook of X-ray spectrometry |
Type |
ME2 Book as editor or co-editor |
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Year |
2002 |
Publication |
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Abbreviated Journal |
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Volume |
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Issue |
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Pages |
1016 p. |
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Keywords |
ME2 Book as editor or co-editor; 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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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
2 ed. |
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ISSN |
|
ISBN |
0-8247-0600-5 |
Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:36390 |
Serial |
8017 |
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Permanent link to this record |
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Author |
Godoi, R.H.M.; Goncalves, S.J., Jr.; Sayama, C.; Polezer, G.; Reis Neto, J.M.; Alfoldy, B.; Van Grieken, R.; Riedi, C.A.; Yamamoto, C.I.; Godoi, A.F.L.; Bencs, L. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Health implications of atmospheric aerosols from asbestos-bearing road pavements traditionally used in Southern Brazil |
Type |
A1 Journal article |
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Year |
2016 |
Publication |
Environmental Science and Pollution Research
T2 – 1st International Caparica Conference on Pollutant Toxic Ions and, Molecules (PTIM), 2015, Caparica, PORTUGAL |
Abbreviated Journal |
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Volume |
23 |
Issue |
24 |
Pages |
25180-25190 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Serpentine and amphibole asbestos occur naturally in certain geologic settings worldwide, most commonly in association with ultramafic rocks, along associated faults. Ultramafic rocks have been used in Pin County, Southern Brazil for decades for the purpose of road paving in rural and urban areas, but without the awareness of their adverse environmental and health impact. The aim of this study was the chemical characterization of aerosols re-suspended in two rural roads of Pin, paved with ultramafic rocks and to estimate the pulmonary deposition of asbestos aerosols. Bulk aerosol samples were analyzed by means of X-ray fluorescence spectrometry and X-ray diffraction analysis, in order to characterize elemental composition and crystallinity. Single-particle compositions of aerosols were analyzed by computer-controlled electron-probe microanalysis, indicating the presence of a few percentages of serpentine and amphibole. Given the chemical composition and size distribution of aerosol particles, the deposition efficiency of chrysotile, a sub-group of serpentine, in two principal segments of the human respiratory system was estimated using a lung deposition model. As an important finding, almost half of the inhaled particles were calculated to be deposited in the respiratory system. Asbestos depositions were significant (similar to 25 %) in the lower airways, even though the selected breathing conditions (rest situation, nose breathing) implied the lowest rate of respiratory deposition. Considering the fraction of inhalable suspended chrysotile near local roads, and the long-term exposure of humans to these aerosols, chrysotile may represent a hazard, regarding more frequent development of lung cancer in the population of the exposed region. |
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Wos |
000389301700060 |
Publication Date |
2016-09-28 |
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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 |
|
Edition |
|
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|
ISSN |
0944-1344; 1614-7499 |
ISBN |
|
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:139232 |
Serial |
8018 |
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Permanent link to this record |
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Author |
Ravindra, K.; Mittal, A.K.; Van Grieken, R. |
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Title |
Health risk assessment of urban suspended particulate matter with special reference to polycyclic aromatic hydrocarbons: a review |
Type |
A3 Journal article |
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Year |
2001 |
Publication |
Reviews on environmnetal health |
Abbreviated Journal |
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Volume |
16 |
Issue |
3 |
Pages |
169-189 |
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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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Wos |
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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 |
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Impact Factor |
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Times cited |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:36128 |
Serial |
8019 |
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Permanent link to this record |
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Author |
Čevik, U.; Koz, B.; Makarovska, Y. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Heavy metal analysis around Iskenderun Bay in Turkey |
Type |
A1 Journal article |
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Year |
2010 |
Publication |
X-ray spectrometry |
Abbreviated Journal |
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Volume |
39 |
Issue |
3 |
Pages |
202-207 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The heavy metal analysis around Iskenderun Bay in Turkey was carried out using mosses, soils, mussels, and sediments. This region is one of the most industrial areas of Turkey, including iron-steel plants, beverage, liquefied petroleum gas (LPG) plants, and oil transfer docks. Energy dispersive X-ray fluorescence spectrometry (Epsilon 5, PANalytical, Almelo, The Netherlands) was used to analyze all samples. V, Cr, Mn, Fe, Ni, Cu, Zn, As, and Pb elements were observed in all samples studied. Although Ce was detected in some mosses and soils, Sn was detected only in some moss samples. Pb concentrations in the moss samples are higher than the soil, the mussel, and the sediment samples. This can be attributed to the mosses that absorb heavy metals such as Pb easily from the air. As the aim of this study was to analyze heavy metals, the evaluation of these elements with their potential hazards for ecology and humans is briefly discussed |
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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 |
000277637400006 |
Publication Date |
2010-03-29 |
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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 |
0049-8246 |
ISBN |
|
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:82678 |
Serial |
8020 |
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Permanent link to this record |
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Author |
Araújo, M.F.D.; Bernard, P.C.; Van Grieken, R.E. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Heavy metal contamination in sediments from the Belgian coast and Scheldt estuary |
Type |
A1 Journal article |
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Year |
1988 |
Publication |
Marine pollution bulletin |
Abbreviated Journal |
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Volume |
19 |
Issue |
2 |
Pages |
269-273 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Sixty-two samples of total sediments and the separated clay/silt size fractions were analysed by energy-dispersive X-ray fluorescence spectrometry to evaluate the pollution level and the trends in samples collected along the Belgian coast over a period of 6 yr and at four stations located in the Scheldt estuary where two of these were sampled periodically for 4 yr. Three correction methods for grain size effects were applied, either to the bulk sediment samples or to the clay/silt size fractions, and the results were compared. Local variations on the concentrations in some of the elements determined were used to establish whether they result from an anthropogenic or natural origin. The level of pollution was assessed as a function of the location, sampling date, and depth. |
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Wos |
A1988P559400005 |
Publication Date |
2003-08-07 |
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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 |
0025-326x; 1879-3363 |
ISBN |
|
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:116801 |
Serial |
8021 |
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Permanent link to this record |
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Author |
Ramesh, R.; Subramanian, V.; Van Grieken, R. |
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Title |
Heavy metal distribution in sediments of Krishna River basin, India |
Type |
A1 Journal article |
|
Year |
1990 |
Publication |
Environmental geology and water sciences |
Abbreviated Journal |
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Volume |
15 |
Issue |
|
Pages |
207-216 |
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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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Place of Publication |
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Wos |
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Series Editor |
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Series Title |
|
Abbreviated Series Title |
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Series Volume |
|
Series Issue |
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Edition |
|
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ISSN |
0177-5146 |
ISBN |
|
Additional Links |
UA library record |
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Impact Factor |
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Times cited |
|
Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:116933 |
Serial |
8022 |
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Permanent link to this record |
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Author |
Biksham, G.; Subramanian, V.; Ramanathan, A.; Van Grieken, R. |
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Title |
Heavy metal distribution in the Godavari river basin |
Type |
A1 Journal article |
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Year |
1991 |
Publication |
Environmental geology and water sciences |
Abbreviated Journal |
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Volume |
17 |
Issue |
|
Pages |
117-126 |
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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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Corporate Author |
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Place of Publication |
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Wos |
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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 |
0177-5146 |
ISBN |
|
Additional Links |
UA library record |
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Impact Factor |
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Times cited |
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Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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Call Number |
UA @ admin @ c:irua:55571 |
Serial |
8023 |
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Permanent link to this record |
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Author |
Subramanian, V.; Van Grieken, R.; Van 't dack, L. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Heavy metals distribution in the sediments of Ganges and Brahmaputra rivers |
Type |
A1 Journal article |
|
Year |
1987 |
Publication |
Environmental geology |
Abbreviated Journal |
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|
Volume |
9 |
Issue |
2 |
Pages |
93-103 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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|
Abstract |
Bed sediments were collected from the entire region of the Ganges basin and some parts of the Brahmaputra. In addition, selected stations were sampled for suspended sediments as well. The samples were analysed for a number of heavy metals (Fe, Mn, Ni, Cr, Cu, and Zn) by the thin-film energy dispersive X-ray fluorescence technique. There are pronounced temporal and spatial variations in the heavy metals distributions. Suspended sediments are 510 times richer than the bed sediments. None of the tributaries contribute significant heavy metal load, but around urban areas in Yamuna (tributary of Ganges), very high levels due to the distribution from the drainage network are observed. Compared to the Brahmaputra, the distribution and fractionation of heavy metals in the Ganges sediments are more erratic and highly variable. All the metals considered show high correlation among themselves. Given the high flux of suspended sediments from the Himalayan rivers (nearly 20% of the global flux), the worldwide budget for heavy metal transport may need to be suitably revised. |
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Corporate Author |
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Place of Publication |
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Editor |
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Language |
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Wos |
A1987F245600004 |
Publication Date |
2006-07-30 |
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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 |
|
Series Issue |
|
Edition |
|
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|
ISSN |
0943-0105 |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
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Impact Factor |
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Times cited |
|
Open Access ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Notes |
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Approved |
no |
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|
Call Number |
UA @ admin @ c:irua:111507 |
Serial |
8024 |
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Permanent link to this record |
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Author |
Facetti, J.; Dekov, V.M.; Van Grieken, R. |
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Title |
Heavy metals in sediments from the Paraguay river: a preliminary study |
Type |
A1 Journal article |
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Year |
1998 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
209 |
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Pages |
79-86 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000072368900008 |
Publication Date |
2002-07-26 |
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ISSN |
0048-9697; 1879-1026 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:20961 |
Serial |
8025 |
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Author |
Jha, P.K.; Subramanian, V.; Sitasawad, R.; Van Grieken, R. |
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Title |
Heavy metals in sediments of the Yamura River (a tributary of the Ganges), India |
Type |
A1 Journal article |
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Year |
1990 |
Publication |
The science of the total environment |
Abbreviated Journal |
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Volume |
95 |
Issue |
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Pages |
7-27 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Yamuna River sediments are more enriched in metals than those of the Ganges and average Indian river sediments. Variation of metals in suspended, bed and core sediment are due to the varying proportions of grain size and mineral content. Iron, Mn and Pb show a preference for the oxide fraction, whereas Cu and Zn are predominant in organic and carbonate fractions of sediments. Of the total elemental content, 80% Mn, 78% Fe, 69% Pb, 67% Cu and 55% Zn are available in chemically mobile phases of the sediments. The high partition coefficient of metals with respect to Mn suggests similar chemical mobility and preferences for solid phases. River sediments in the vicinity of Delhi show an increase in sorption of metals downstream, consequently metals are retained in sediments. The high correlation coefficient and significant regression relation among the metals indicate their similar behaviour during transport. At Allahabad, the contribution of the Yamuna to the Ganges is 3200 t Pb year−1, 12 100 t Zn year−1 and 8500 t Cu year−1 in particulate form. |
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A1990DP94300002 |
Publication Date |
2003-09-12 |
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0048-9697; 1879-1026 |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116655 |
Serial |
8026 |
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Permanent link to this record |
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Author |
Subramanian, V.; Jha, P.K.; Van Grieken, R. |
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Title |
Heavy metals in the Ganges estuary |
Type |
A1 Journal article |
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Year |
1988 |
Publication |
Marine pollution bulletin |
Abbreviated Journal |
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Volume |
19 |
Issue |
2 |
Pages |
290-293 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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A1988P559400010 |
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2003-08-07 |
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ISSN |
0025-326x; 1879-3363 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116803 |
Serial |
8027 |
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Author |
Ro, C.-U.; Oh, K.-Y.; Osán, J.; de Hoog, J.; Worobiec, A.; Van Grieken, R. |
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Title |
Heterogeneity assessment in individual CaCO3-CaSO4 particles using ultrathin window electron probe X-ray microanalysis |
Type |
A1 Journal article |
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Year |
2001 |
Publication |
Analytical chemistry |
Abbreviated Journal |
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Volume |
73 |
Issue |
19 |
Pages |
4574-4583 |
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Keywords |
A1 Journal article; Laboratory Experimental Medicine and Pediatrics (LEMP); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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000171356800012 |
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2002-07-26 |
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ISSN |
0003-2700; 5206-882x |
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UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:36085 |
Serial |
8028 |
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Permanent link to this record |
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Author |
Török, S.; Van Dyck, P.; Van Grieken, R. |
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Title |
Heterogeneity effects in direct X-ray fluorescence analysis of hair |
Type |
A1 Journal article |
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Year |
1984 |
Publication |
X-ray spectrometry |
Abbreviated Journal |
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Volume |
13 |
Issue |
1 |
Pages |
27-32 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
The methodology of direct hair analysis by energy-dispersive x-ray fluorescence was studied. The effect on the XRF result of having a non-homogeneous radial distribution of the analyte in a single hair strand and the macroscopic effects in a bundle of hairs were calculated to evaluate possible systematic errors. The detection limits were mapped as a function of the target thickness and surface fraction. It appeared that a 10 mg cm−2 sample thickness, i. e. a target with about four layers of hair strands, is recommended. The standard deviation of this simple direct analytical method is 619% for some important elements. Discrepancies with neutron activation analysis had a mean value of around 15%. About twelve elements can be determined simultaneously on a routine basis. |
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Wos |
A1984SB70200004 |
Publication Date |
2005-05-28 |
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ISSN |
0049-8246 |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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no |
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Call Number |
UA @ admin @ c:irua:116485 |
Serial |
8029 |
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Permanent link to this record |
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Author |
Török, S.; Braun, T.; Van Dyck, P.; Van Grieken, R. |
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Title |
Heterogeneity effects in direct XRF analysis of traces of heavy metals preconcentrated on polyurethane foam sorbents |
Type |
A1 Journal article |
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Year |
1986 |
Publication |
X-ray spectrometry |
Abbreviated Journal |
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Volume |
15 |
Issue |
1 |
Pages |
7-11 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Trace amounts of heavy metals were preconcentrated on discs of polyurethane (PU) foam loaded with ammonium diethyldithiocarbamate (DDTC), to increase the sensitivity of XRF. Since the diameter of the cavities in the open-cell PU foams reaches 30300 μm, considerable heterogeneity effects might occur, which could reduce the accuracy of the method. The possible systematic error introduced by considering the sample to be homogeneous is calculated using the Berry et al. model. The calculations show that the underestimation of the absorption correction factor when considering the sample as being homogeneous is less than 2% for high-Z elements when the sample thickness is at least 2 mm. The detection limits are also around the minima for this thickness. |
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Wos |
A1986AYN6000002 |
Publication Date |
2005-05-28 |
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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 |
0049-8246 |
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 ![sorted by Open Access field, descending order (down)](img/sort_desc.gif) |
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Call Number |
UA @ admin @ c:irua:116488 |
Serial |
8030 |
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Permanent link to this record |