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Author |
Costa Dantas, C.; Da Silveira Dantas, H.; Van 't dack, L.; Van Grieken, R. |
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Title |
Analise de solos por meio de fluorescencia de raios-X nao-dispersiva |
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A1 Journal article |
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Year |
1981 |
Publication |
Química nova |
Abbreviated Journal |
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Volume |
4 |
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Pages |
110-116 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Edition |
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ISSN |
0100-4042; 1678-7064 |
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UA library record |
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no |
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Call Number |
UA @ admin @ c:irua:111435 |
Serial |
7438 |
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Author |
Van Grieken, R.; Van 't dack, L.; Costa Dantas, C.; Da Silveira Dantas, H. |
![goto web page (via DOI) doi](http://nano.uantwerpen.be/nanorefs/img/doi.gif)
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Title |
Soil analysis by thin-film energy-dispersive X-ray fluorescence |
Type |
A1 Journal article |
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Year |
1979 |
Publication |
Analytica chimica acta |
Abbreviated Journal |
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Volume |
108 |
Issue |
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Pages |
93-101 |
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Keywords |
A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation) |
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Abstract |
Energy-dispersive x-ray fluorescence is advantageous for trace analysis of soils present as thin films. A target thickness of about 2 mg cm-2 provides a compromise between optimal sensitivity and minimal absorption effect or optimal accuracy. Sample preparation involves only suspending the finely ground soil in water and drying this suspension on a thin mylar foil glued on a ring that fits into the x.r.f. spectrometer. The effective sample weight present in the exciting beam area is computed from the scatter peaks, a method that cancels out target heterogeneity problems. High accuracy is demonstrated for many elements in reference soil and rock materials; a precision around 5% and a detection limit around 10 ppm can be achieved. As an illustration, results for 16 trace elements and preliminary interpretation are given for a series of pedologically important soil samples from Brasil. |
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Wos |
A1979HL44100012 |
Publication Date |
2002-07-25 |
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ISSN |
0003-2670; 1873-4324 |
ISBN ![sorted by ISBN field, descending order (down)](img/sort_desc.gif) |
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Additional Links |
UA library record; WoS full record; WoS citing articles |
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Call Number |
UA @ admin @ c:irua:111402 |
Serial |
8549 |
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Permanent link to this record |