Determination of Arsenic in Urine and Feces by Dry Ashing, Atomic Absorption Spectrometry
- 1 November 1980
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Analytical Chemistry
- Vol. 8 (4), 283-290
- https://doi.org/10.1080/03067318008071897
Abstract
A dry ashing flameless atomic absorption procedure was used to determine fish-arsenic in human urine and feces. Samples were dry ashed with Mg(NO3)2—MgO and dissolved in 6N HCI. Arsine was generated by the addition of NaBH4 and swept into a thermally heated silica tube furnace. Recoveries of several arsenic compounds added to samples ranged from 85 to 117%. The detection limit was about 3 ppb as for log sample. Effects of the presence of common cations, anions and acids were studied.Keywords
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