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Determination of dimethyl-and diethylmercury with HPLC-CVAAS by on-line UV-irradiation

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Summary

A technique has been developed for the determination of dimethyl- and diethylmercury. It is based on the separation by reversed-phase HPLC, on-line decomposition of the dialkylmercury compounds by H2O2 and UV-irradiation, reduction with alkaline sodium borohydride, followed by gas liquid separation of mercury vapour and determination by cold vapour atomic absorption detection. The method permits the simultaneous determination of dimethyl- and diethylmercury by RP C18 HPLC-CVAAS. The limit of detection (S/N=3) for both compounds was calculated to be about 30 ppb.

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Authors and Affiliations

  1. Institut für Sedimentforschung, University of Heidelberg, INF 236, D-69120, Heidelberg, Germany

    R. Falter & H. F. Schöler

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  1. R. Falter
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  2. H. F. Schöler
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Falter, R., Schöler, H.F. Determination of dimethyl-and diethylmercury with HPLC-CVAAS by on-line UV-irradiation. Fresenius J Anal Chem 348, 253–254 (1994). https://doi.org/10.1007/BF00325371

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  • DOI: https://doi.org/10.1007/BF00325371

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