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

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...

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Hauptverfasser: Falter, Ralf (VerfasserIn) , Schöler, Heinz Friedrich (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 1994
In: Fresenius' journal of analytical chemistry
Year: 1994, Jahrgang: 348, Heft: 3, Pages: 253-254
ISSN:1432-1130
DOI:10.1007/BF00325371
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Verfasserangaben:R. Falter, H.F. Schöler
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Zusammenfassung: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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Beschreibung:Online Resource
ISSN:1432-1130
DOI:10.1007/BF00325371