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

• Verfasst von: Falter, Ralf [VerfasserIn]
• Verfasst von: Schöler, Heinz Friedrich [VerfasserIn]
• Titel: Determination of dimethyl-and diethylmercury with HPLC-CVAAS by on-line UV-irradiation
• Verf.angabe: R. Falter, H.F. Schöler
• Jahr: 1994
• Umfang: 2 S.
• Fussnoten: Gesehen am 08.02.2023
• Titel Quelle: Enthalten in: Fresenius' journal of analytical chemistry
• Ort Quelle: Berlin : Springer, 1990
• Jahr Quelle: 1994
• Band/Heft Quelle: 348(1994), 3, Seite 253-254
• ISSN Quelle: 1432-1130
• DOI: doi:10.1007/BF00325371
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: H2O2
• Sach-SW: HPLC
• Sach-SW: Inorganic Chemistry
• Sach-SW: Mercury
• Sach-SW: Sodium
• K10plus-PPN: 183373775X

Abstract

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.