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2007•Lishizhen Medicine and Materia Medica ResearchRequires access

Study on the Trace Elements of Emei Coptis chinensis

WU Yu-juan

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Abstract

Objective To analyse the primary speciation of trace elements and heavy metals in Emei Coptis chinensis.Methods Atomic absorption spectrophotometry was used to determine the contents of Cu,Fe,Cr,Mn,Zn,Pb,Ca,Mg in Coptis chinensis,and their solution rates in decoction were also studied.Results Ca,Mg had the highest contents in Emei Coptis chinensis,Fe、Mn and Zn were rich and the dissolution rates of Mg,Zn and Mn were higher than the other elements.Although contents of the heavy metal Pb was high,the dissolvable state was poor.Conclusion The reference information for further study the relationship between the trace element and the efficacy of the traditional Chinese medicine has been provided.

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What this paper is about

Objective To analyse the primary speciation of trace elements and heavy metals in Emei Coptis chinensis.Methods Atomic absorption spectrophotometry was used to determine the contents of Cu,Fe,Cr,Mn,Zn,Pb,Ca,Mg in Coptis chinensis,and their solution rates in decoction were also studied.Results Ca,Mg had the highest contents in Emei Coptis chinensis,Fe、Mn and Zn were rich and the dissolution rates of Mg,Zn and Mn were higher than the other elements.Although contents of the heavy metal Pb was high,the dissolvable state was poor.Conclusion The reference information for further study the relationship between the trace element and the efficacy of the traditional Chinese medicine has been provided.

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Available abstract

Objective To analyse the primary speciation of trace elements and heavy metals in Emei Coptis chinensis.Methods Atomic absorption spectrophotometry was used to determine the contents of Cu,Fe,Cr,Mn,Zn,Pb,Ca,Mg in Coptis chinensis,and their solution rates in decoction were also studied.Results Ca,Mg had the highest contents in Emei Coptis chinensis,Fe、Mn and Zn were rich and the dissolution rates of Mg,Zn and Mn were higher than the other elements.Although contents of the heavy metal Pb was high,the dissolvable state was poor.Conclusion The reference information for further study the relationship between the trace element and the efficacy of the traditional Chinese medicine has been provided.

Key concepts: Coptis chinensis, Coptis, Atomic absorption spectroscopy, Chemistry, Trace element, Decoction, Dissolution, Forsythia

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