Document Detail

Determination of selenium in urine by hydride generation atomic absorption spectrometry.
MedLine Citation:
PMID:  8634544     Owner:  NLM     Status:  MEDLINE    
A procedure has been developed for determination of total selenium in urine by hydride generation atomic absorption spectrometry. Mineralization was performed with a nitric acid-perchloric acid mixture on a thermostated digestion block. The method was validated by comparison with the method involving mineralization in a microwave acid digestion bomb containing nitric acid and small amounts of vanadium pentoxide. Se(VI) was reduced to Se(IV) by dissolution in 7N HCl. Sample recoveries, precision studies, and analyses of a certified reference material demonstrated the reliability and accuracy of this technique. Urine samples had selenium concentrations ranging from 4.6 to 50.3 micrograms/L. These values correspond to an average of 54.9 micrograms per person per day total ingested and bioavailable Se in the daily diet.
M Navarro; H Lopez; M C Lopez; V Perez
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of AOAC International     Volume:  79     ISSN:  1060-3271     ISO Abbreviation:  J AOAC Int     Publication Date:    1996 May-Jun
Date Detail:
Created Date:  1996-07-11     Completed Date:  1996-07-11     Revised Date:  2008-03-17    
Medline Journal Info:
Nlm Unique ID:  9215446     Medline TA:  J AOAC Int     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  773-6     Citation Subset:  IM    
University of Granada, Faculty of Pharmacy, Department of Nutrition and Bromatology, Spain.
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MeSH Terms
Selenium / urine*
Sex Factors
Spectrophotometry, Atomic
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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