Towards Speciation of Arsenic in a Standard Reference River Sediment by High-performance Ion Chromatography Coupled With Plasma Source Mass Spectrometry
- 1 January 1997
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Analytical Communications
- Vol. 34 (2) , 49-51
- https://doi.org/10.1039/a607315h
Abstract
A procedure for the extraction and separation of alkylarsenic species from Buffalo River Sediment standard reference material has been developed. The sample was sonicated in methanol–hydrochloric acid–water (50 + 10 + 40 v/v) and filtered. The arsenic species in the extract were separated by anion exchange HPLC, on a Hamilton PRP X-100 column, using phosphate (pH 6.0) and citrate (pH 6.0) buffers as eluents, and detected by direct aspiration into an inductively coupled plasma mass spectrometer. Monomethylarsonic acid, at a concentration of about 0.2 mg kg - 1 in the solid, was detected.Keywords
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