Speciation of arsenic of liquid and gaseous emissions from soil in a microcosmos experiment by liquid and gas chromatography with inductively coupled plasma mass spectrometer (ICP-MS) detection |
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| Authors: | T. Prohaska M. Pfeffer M. Tulipan G. Stingeder A. Mentler W. W. Wenzel |
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| Affiliation: | (1) Institute of Chemistry, Vienna University of Agricultural Sciences – BOKU Wien, Muthgasse 18, A-1190 Vienna, Austria, AT;(2) Institute of Soil Science, Vienna University of Agricultural Sciences – BOKU Wien, Gregor Mendel Str. 33, A-1190 Vienna, Austria, AT |
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| Abstract: | Gas chromatography and high-performance liquid chromatography coupled to a double focusing sectorfield ICP-MS as sensitive element specific detector are used for the speciation of arsenic of liquid and gaseous emissions from soil samples, which were equilibrated in a microcosmos experiment. Speciation of liquid samples was performed by HPLC and hydride generation was used as introduction system to ICP-MS. An online prereduction step was introduced to enhance the sensitivity for As(V). A home-built and laboratory-ready transfer line from GC to ICP-MS is presented and quantification of As in gaseous emissions was performed by external calibration via hydride generation. The microcosmos experiment revealed only low production rates of organoarsenic compounds and reflected a limited capability of the biovolatilization experiment for the simulation of natural systems. Received: 2 December 1998 / Revised: 3 February 1999 / Accepted: 5 February 1999 |
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