Microcolumn Preconcentration of Mercury Species from Water Samples Prior to HPLC/CV-AFS Speciation

• Authors: ŠTĚPÁNKOVÁ Zdeňka; KOMÁREK Josef; PELCOVÁ Pavlína; KUBÁŇ Vlastimil
• Year of publication: 2009
• Type: Article in Periodical
• Magazine / Source: Chemia Analityczna (Warsaw)
• MU Faculty or unit: Faculty of Science
• Field: Analytic chemistry
• Keywords: Mercury species; Methylmercury; Pre-concentration; Liquid chromatography; Atomic fluorescence spectrometry
• Description: Silica gel C-18 microcolumns modified with sodium diethyldithiocarbamate (DDTC), ammonium pyrolidine-1-yl-dithiocarbamate (APDC), 2-mercaptoethanole, 3-mercaptopropionic acid, or dithizone were tested for preconcentration of MeHg+ and Hg(II) from river and lake water samples. Recoveries higher than 85% were obtained. Standard addition method was recommended for samples containing higher concentration of Fe3+.

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