Study on the Trace Elements of Emei Coptis chinensis
Abstract:ObjectiveTo analyse the primary speciation of trace elements and heavy metals in Emei Coptis chinensis. MethodsAtomic 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. ResultsCa,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. ConclusionThe reference information for further study the relationship between the trace element and the efficacy of the traditional Chinese medicine has been provided.
Key words:Coptis chinensis; Trace element; Analysis of primary speciation
黄连为毛茛科植物黄连Coptis chinensis Franch、三角叶黄连Coptis deltoidea C. Y. Cheng et Hsiao、云南黄连Coptis teetoides C. Y. Cheng或峨嵋野连Coptis omeiensis(Chen)C. Y. Cheng的根茎。分别习称“味连”“雅连”“云连”和“凤尾连”。黄连产于四川者统称川黄连,为道地药材,其中味连品质较佳,雅连更优,凤尾连最优,云连品质不及川黄连。