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Environmental Health Perspectives logoLink to Environmental Health Perspectives
. 1997 Jun;105(6):650–653. doi: 10.1289/ehp.97105650

Intercomparison of analytical methods for arsenic speciation in human urine.

E Crecelius 1, J Yager 1
PMCID: PMC1470073  PMID: 9288500

Abstract

An intercomparison exercise was conducted for the quantification of arsenic species in spiked human urine. The primary objective of the exercise was to determine the variance among laboratories in the analysis of arsenic species such as inorganic As (As+3 and As+5), monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA). Laboratories that participated had previous experience with arsenic speciation analysis. The results of this interlaboratory comparison are encouraging. There is relatively good agreement on the concentrations of these arsenic species in urine at concentrations that are relevant to research on the metabolism of arsenic in humans and other mammals. Both the accuracy and precision are relatively poor for arsenic concentrations of less than about 5 micrograms/l.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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