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Zeeman effect electrothermal atomic absorption spectrophotometry with matrix modification for the determination of arsenic in urine.

D G Edgar·K R Lum
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Abstract

Arsenic was determined in urine by electrothermal atomic absorption spectrophotometry using Zeeman Effect background correction and after matrix modification with 5% nickel nitrate. Mean recovery of urine samples spiked with 100 micrograms . L-1 dimethylarsinic acid was 97.9 micrograms . L-1. Within-run CV was 2.4%, between-run CV was 7.3% and the detection limit was determined to be 10.0 micrograms . L-1. The method can be used for the rapid screening of urine samples for elevated arsenic levels.

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D G Edgar, K R Lum. 1983. Zeeman effect electrothermal atomic absorption spectrophotometry with matrix modification for the determination of arsenic in urine.. https://doi.org/10.1080/03067318308078363

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