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Determination of mercury in biological materials by CV-AAS after wet digestion |
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| Authors: | Gerda Vermeir Carlo Vandecasteele Eric Temmerman Richard Dams Jacques Versieck |
| Institution: | (1) Laboratory of Analytical Chemistry, Rijksuniversiteit Gent, Institute for Nuclear Sciences, Proeftuinstraat 86, B-9000 Gent, Belgium;(2) Department of Internal Medicine, Division of Gastroenterology, University Hospital, De Pintelaan 185, B-9000 Gent, Belgium |
| Abstract: | The paper describes the determination of ultratrace concentrations of mercury in biological materials. Samples were digested in nitric acid under pressure in a polytetrafluoroethylene bomb. Mercury was determined in the digest solution by cold vapour atomic absorption spectrometry using stannous chloride reduction and two-stage gold amalgamation. The detection limit is 0.12 ng. Analysis of several certified reference materials yielded results in excellent agreement with the certified values. The results for blood serum of several subjects ranged from 0.2 to 0.8 g 1–1.Of the National Fund for Scientific Research (Belgium), to whom correspondence should be addressed |
| Keywords: | mercury CV-AAS biological samples serum atomic absorption spectrometry |
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