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Issue 1, 2011
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Identification of roxarsone metabolites produced in the system: Soil–chlorinated water–light by using HPLC-ICP-MS/ESI-MS, HPLC-ESI-MS/MS and High Resolution Mass Spectrometry (ESI-TOF-MS)

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Abstract

Roxarsone (4-hydroxy-3-nitrophenylarsonic acid) in contact with soil of volcanic origin and chlorine containing water generated a set of organoarsenicals. The transformation products were identified with element-specific (ICP-MS) as well as molecular-specific (ESI-MS) detection after their HPLC separation. The identification of the main transformation products by means of ESI-MS, ESI-MS/MS and ESI-TOF-MS adduce evidence of chlorinated phenylarsonic acids and a phenylarsine oxide derivative which contains arsenic in the trivalent state. Traces of chlorine in water used for sorption experiments are suggested to be responsible for the formation of chlorinated products. After irradiation of a roxarsone solution with visible light, different transformation product so far not identified were detected.

Graphical abstract: Identification of roxarsone metabolites produced in the system: Soil–chlorinated water–light by using HPLC-ICP-MS/ESI-MS, HPLC-ESI-MS/MS and High Resolution Mass Spectrometry (ESI-TOF-MS)

  • This article is part of the themed collection: Speciation
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Publication details

The article was received on 06 Aug 2010, accepted on 17 Nov 2010 and first published on 30 Nov 2010


Article type: Paper
DOI: 10.1039/C0JA00105H
Citation: J. Anal. At. Spectrom., 2011,26, 171-177
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    Identification of roxarsone metabolites produced in the system: Soil–chlorinated water–light by using HPLC-ICP-MS/ESI-MS, HPLC-ESI-MS/MS and High Resolution Mass Spectrometry (ESI-TOF-MS)

    U. Arroyo-Abad, J. Mattusch, M. Möder, M. P. Elizalde-González, R. Wennrich and F. Matysik, J. Anal. At. Spectrom., 2011, 26, 171
    DOI: 10.1039/C0JA00105H

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