Arsenic Species Separation by IELC-ICP/OES: Arsenochoune Behavior
- 1 October 1993
- journal article
- research article
- Published by Taylor & Francis in Journal of Liquid Chromatography
- Vol. 16 (16) , 3531-3542
- https://doi.org/10.1080/10826079308019706
Abstract
The separation conditions and quantification of As(III), As(V), monomethylarsenate (MMA), dimethylarsinate (DMA), arsenobetaine (AsBet) and arsenocholine (AsChol) are studied by Liquid Chromatography (LC) coupled directlv to an Inductively Coupled Plasma Optical Emission Spectroscopy (ICP/OES) system. The separation conditions are optimized to improve the resolution of the six arsenic species. Arsenocholine shows a particular pattern of behaviour when phosphate is used as eluent: two peaks are observed in the chromatogram, thus a svstematic study assaving different pH and concentration of phosphate is carried out to improve resolution and analvsis time when the six arsenic compounds are analyzed in a mixture. Boric acid as mobile phase avoids the splitting of the arsenocholine peak and leads to a good separation of the six arsenic compounds. Detection limits are stablished for the six arsenic species.Keywords
This publication has 21 references indexed in Scilit:
- Determination of arsenobetaine, arsenocholine, and tetramethylarsonium cations by HPLC thermochemical hydride generation-atomic absorption spectrometryAnalytical Chemistry, 1990
- Exchange of comments on identification and quantitation of arsenic species in a dogfish muscle reference material for trace elementsAnalytical Chemistry, 1989
- Accumulation of arsenic in yelloweye mullet (Aldrichetta forsteri) following oral administration of organoarsenic compounds and arsenateScience of The Total Environment, 1989
- Combined thin-layer chromatography/mass spectrometry without substance elution: Use for direct identification of amino acids as dansylated estersJournal of Mass Spectrometry, 1987
- Identification of arsenobetaine and arsenocholine in Canadian fish and shellfish by high-performance liquid chromatography with atomic absorption detection and confirmation by fast atom bombardment mass spectrometryJournal of Agricultural and Food Chemistry, 1986
- Quantitative determination of arsenobetaine, the major water-soluble arsenical in three species of crab, using high pressure liquid chromatography and an inductively coupled argon plasma emission spectrometer as the arsenic-specific detectorChemosphere, 1985
- Evidence for the presence of arsenobetaine and another organoarsenical in shrimpsChemosphere, 1982
- Identification of arsenobetaine, a water soluble organo-arsenic compound in muscle and liver of a shark, Prionace glaucus.Agricultural and Biological Chemistry, 1980
- Determination of arsenic species in natural watersAnalytical Chemistry, 1977
- Separation and determination of nanogram amounts of inorganic arsenic and methylarsenic compoundsAnalytical Chemistry, 1977