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Title
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Multi-element analysis of urine by energy-dispersive x-ray fluorescence spectrometry
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Author
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Abstract
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| For multi-element analysis of human urine, 25-ml samples doped with yttrium as internal standard are evaporated gently and then ashed up to 460°C overnight. The residue is pelletized and analysed by energy-dispersive x-ray fluorescence. Acid addition to facilitate the digestion is not mandatory. Recoveries are nearly quantitative for traces of Fe, Ni, Cu, Zn and Sr, to a lesser extent for lead, but not for arsenic or selenium. The standard deviation per measurement is typically around 6%. The detection limits are such that some 10 elements can be determined simultaneously in normal urine, and possibly more in cases of importance to toxicology or industrial hygiene. |
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Language
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English
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Source (journal)
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Analytica chimica acta. - Amsterdam, 1947, currens
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Publication
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Amsterdam
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1981
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ISSN
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0003-2670
[print]
1873-4324
[online]
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DOI
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10.1016/S0003-2670(01)84161-1
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Volume/pages
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130
:1
(1981)
, p. 167-175
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ISI
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A1981ME98900017
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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