Determination of Trace Bismuth and Cadmuim in Tea by Hydride Generation Atomic Fluorescence Spectrometry

Abstract

Abstract: A method was reported for the determination of trace bismuth and cadmium in the tea by hydride generation atomicfluorescence spectrometry. The effects of acid medium and reducing agent on the determination of Bi and Cd and coexisting elementswere studied. In the given conditions, the detection limits were Bi:0.0946μg/L and Cd:0.0280μg/L respectively. The linear rangesof determination were Bi:0.1～200μg/L and Cd: 0.1～100μg/L respectively. The average recovery was in the range of 96.1%～108.6%. The method was accurate, rapid and convenient with satisfactory results.

Key words: intermittent flow, hydride generation, atomic fluorescence spectrometry, tea, bismuth, cadmium

SHI Jie, SONG Qing-Guo, ZHAO Kai-Lou, CAO Feng-Pu, GUO Wei. Determination of Trace Bismuth and Cadmuim in Tea by Hydride Generation Atomic Fluorescence Spectrometry[J]. FOOD SCIENCE, 2005, 26(7): 163-165.

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Determination of Trace Bismuth and Cadmuim in Tea by Hydride Generation Atomic Fluorescence Spectrometry

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