Reactive supercritical fluid extraction and chromatography of arsenic species |
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| Authors: | B W Wenclawiak and M Krah |
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| Institution: | (1) Analytische Chemie I, Universität-GH Siegen, Adolf-Reichwein-Strasse, D-57068 Siegen, Germany |
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| Abstract: | Reactive supercritical fluid extraction has been used for the speciation of organic (DMA and MMA) and inorganic (As(III) and As(V)) arsenic compounds in solid samples. Derivatization with thioglycolic acid methylester (TGM) was performed in supercritical carbon dioxide. Different extraction conditions have been tested. The arsenic derivatives have been analyzed by GC. A capillary-SFC method was evaluated for the analysis of the TGM derivatives and compared with GC.Dedicated to Professor Dr. Dieter Klockow on the occasion of his 60th birthday |
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