Development and application of liquid and gas-chromatographic speciation techniques with element specific (ICP-MS) detection to the study of anaerobic arsenic metabolism |
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| Authors: | E B Wickenheiser K Michalke C Drescher A V Hirner and R Hensel |
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| Institution: | (1) Institute for Environmental and Analytical Chemistry, FB8, University of Essen, Universit?tstrasse 3–5, D-45141 Essen, Germany, DE;(2) Institute for Microbiology, FB9, University of Essen, Universit?tstrasse 3–5, D-45141 Essen, Germany, DE |
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| Abstract: | Following the observation of volatile hydride and methylated arsenic species in the gases released from sewage treatment facilities
and municipal landfills, we have developed a method for investigating the production of such gases by an anaerobic organism.
Here we report the application of high performance ion chromatography (HPIC), hydride generation gas chromatography (HG-GC),
and purge and trap gas chromatography (PT-GC), coupled with inductively-coupled plasma mass spectrometry (ICP-MS) to study
the formation of ionic and volatile arsenic compounds produced in a batch culture of the anaerobic methanogen Methanobacterium formicicum. In this time course experiment we observed arsenite, mono- and dimethylated arsenic acid, arsine, mono-, di- and trimethylarsine,
as well as a currently unknown volatile arsenic species.
Received: 5 March 1998 / Revised: 22 June 1998 / Accepted: 26 June 1998 |
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