Quantification of arsenic species in a river water reference material for trace metals by graphite furnace atomic absorption spectrometric techniques
- 1 January 1989
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 114 (11) , 1393-1396
- https://doi.org/10.1039/an9891401393
Abstract
Direct injection graphite furnace atomic absorption spectrometry (GFAAS) and hydride generation GFAAS techniques have been used to quantify As species in the National Research Council of Canada river water reference material SLRS-1 following their concentration and separation on a strong cation-exchange resin. Arsenic(III), AsV and dimethylarsinic acid account for 71% of the total As. Negligible amounts (ca. 22%) exists as a relatively inert, unidentified species, which has similar but not identical properties to arsenobetaine. The species integrity of the sample has remained unaltered for the past 13 months of storage.Keywords
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