ISSN:
1612-1112
Keywords:
Column liquid chromatography
;
Urine clean-up
;
Arsenic speciation
;
Microwave assisted oxidation
;
Atomic absorption spectrometry
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary An effective clean-up method based on the precipitation of most high molecular mass inorganic salts and organic compounds in ethanol at −15°C has been developed for the determination of arsenite, arsenate, monomethylarsonate (MMA), dimethylarsinate (DMA), arsenobetaine (AsB) and arsenocholine (AsC) in urine. Analyte recovery was close to 100%. The six species were separated on an anionic HPLC column and determined by microwave-assisted oxidation-hydride generation-atomic absorption spectrometry. The detection limits and relative standard deviation of the whole procedure were within the 8–15 μg L−1 and 2.5–5.3% ranges, respectively, which allows application to the analysis of urine of people exposed to arsenic.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02293002
Permalink
