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2003•Research and Practice on Chinese MedicinesRequires access

Determination of the Contents of As,Pb and Hg in Chinese Medicinal Materials by Microwave-digestion and Atomic Fluorescence Spectrometry

Ai Wang

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Abstract

Objective To establish the method for determining controlled contents of As,Pb and Hg in Chinese medicinal materials.Methods Microwave digestion and atomic fluorescence spectrometry were used.Results RSD3%,A detection limit of the samples was 53 g/kg for As,31 g/kg for Pb and 6 g/kg for Hg.Conclusion The method can be used to determine contents of heavy metals in Chinese medicinal materials.

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What this paper is about

Objective To establish the method for determining controlled contents of As,Pb and Hg in Chinese medicinal materials.Methods Microwave digestion and atomic fluorescence spectrometry were used.Results RSD3%,A detection limit of the samples was 53 g/kg for As,31 g/kg for Pb and 6 g/kg for Hg.Conclusion The method can be used to determine contents of heavy metals in Chinese medicinal materials.

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Available abstract

Objective To establish the method for determining controlled contents of As,Pb and Hg in Chinese medicinal materials.Methods Microwave digestion and atomic fluorescence spectrometry were used.Results RSD3%,A detection limit of the samples was 53 g/kg for As,31 g/kg for Pb and 6 g/kg for Hg.Conclusion The method can be used to determine contents of heavy metals in Chinese medicinal materials.

Key concepts: Microwave digestion, Microwave, Detection limit, Digestion (alchemy), Mass spectrometry, Fluorescence, Analytical Chemistry (journal), Chemistry

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