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2011•Journal of Henan University of Science & TechnologyRequires access

Determination of Content of Copper and Zinc in Traditional Chinese Herbal Medicines by FAAS

Lu Wang, Shao Yong-qing, Hui Liu

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Abstract

Objective To develop a method for the determination of content of copper and zinc in traditional Chinese herbal medicines. Methods Traditional Chinese medicines were digested by mixtures of HNO3 and HClO4 by wet digestion.And the content of Cu and Zn were determined by FAAS. Results The linear range of Cu was 0.05～5.00 μg/mL.The RSD was less than 1.72%(n=5)and the recoveries were 88.47%～94.82%;The linear range of Zn was 0.20～1.20 μg/mL.The RSD was less than 5.60%(n=5),and the recoveries were 88.47%～91.95%. Conclusion It is suitable to be used for the determination of Cu and Zn.

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What this paper is about

Objective To develop a method for the determination of content of copper and zinc in traditional Chinese herbal medicines. Methods Traditional Chinese medicines were digested by mixtures of HNO3 and HClO4 by wet digestion.And the content of Cu and Zn were determined by FAAS. Results The linear range of Cu was 0.05～5.00 μg/mL.The RSD was less than 1.72%(n=5)and the recoveries were 88.47%～94.82%;The linear range of Zn was 0.20～1.20 μg/mL.The RSD was less than 5.60%(n=5),and the recoveries were 88.47%～91.95%. Conclusion It is suitable to be used for the determination of Cu and Zn.

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Available abstract

Objective To develop a method for the determination of content of copper and zinc in traditional Chinese herbal medicines. Methods Traditional Chinese medicines were digested by mixtures of HNO3 and HClO4 by wet digestion.And the content of Cu and Zn were determined by FAAS. Results The linear range of Cu was 0.05～5.00 μg/mL.The RSD was less than 1.72%(n=5)and the recoveries were 88.47%～94.82%;The linear range of Zn was 0.20～1.20 μg/mL.The RSD was less than 5.60%(n=5),and the recoveries were 88.47%～91.95%. Conclusion It is suitable to be used for the determination of Cu and Zn.

Key concepts: Zinc, Copper, Chemistry, Chromatography, Linear relationship, Linear range, Content determination, Traditional medicine

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