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Determination of Microamounts Elements in 7 Anticancer Chinese Herbal Medicines by FAAS

YE Da-lin

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Abstract

A method of determining K、Na、Mg、Fe、Mn、Zn、Cu、Cr in Chinese herbal medicines by microwave digestion and FAAS is established. Microwave digestion system and digestion conditions were discussed. Chinese herbal medicines was digested by HNO3 + H2 O2. Testing results showed that the detection limits range is from 0. 006 μg / mL to 0. 035 μg / mL depending on the elements,and correlation coefficient is larger than 0. 999 0. Recoveries of samples are in the range 96. 00 % ～ 103. 98% and RSD of the results is less than 2 % . This method was accurate,simple and rapid.

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What this paper is about

A method of determining K、Na、Mg、Fe、Mn、Zn、Cu、Cr in Chinese herbal medicines by microwave digestion and FAAS is established. Microwave digestion system and digestion conditions were discussed. Chinese herbal medicines was digested by HNO3 + H2 O2. Testing results showed that the detection limits range is from 0. 006 μg / mL to 0. 035 μg / mL depending on the elements,and correlation coefficient is larger than 0. 999 0. Recoveries of samples are in the range 96. 00 % ～ 103. 98% and RSD of the results is less than 2 % . This method was accurate,simple and rapid.

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Available abstract

A method of determining K、Na、Mg、Fe、Mn、Zn、Cu、Cr in Chinese herbal medicines by microwave digestion and FAAS is established. Microwave digestion system and digestion conditions were discussed. Chinese herbal medicines was digested by HNO3 + H2 O2. Testing results showed that the detection limits range is from 0. 006 μg / mL to 0. 035 μg / mL depending on the elements,and correlation coefficient is larger than 0. 999 0. Recoveries of samples are in the range 96. 00 % ～ 103. 98% and RSD of the results is less than 2 % . This method was accurate,simple and rapid.

Key concepts: Microwave digestion, Digestion (alchemy), Chromatography, Detection limit, Chemistry, Traditional medicine, Medicine

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