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

Wei Guo

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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.

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What this paper is about

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.

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Available 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 concepts: Bismuth, Hydride, Chemistry, Cadmium, Linear range, Detection limit, Mass spectrometry, Trace Amounts

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