不同产地不同品种细辛药材的无机元素分析

Research on inorganic elements of Asari Radix et Rhizoma from different localities and species

目的:探讨细辛中无机元素特征。方法:采用电感耦合等离子体发射光谱(ICP-AES)和电感耦合等离子体质谱(ICPMS)法测定了15份不同产地不同品种细辛药材中53种无机元素的含量,采用聚类分析对其无机元素特征进行分析。结果:发现细辛药材具有较高含量的铁(Fe)、铬(Cr)、锂(Li)等元素;聚类分析显示华细辛和辽细辛(北细辛及汉城细辛)可以较好的分为2类;比较了53种无机元素在细辛根和根茎间含量的差异;首次报道了细辛中铷(Rb)、铀(U)、汞(Hg)、铯(Cs)、碘(I)、锗(Ge)6种无机元素的含量。对细辛中无机元素的初级形态特征进行了初步研究,发现细辛中各元素的提取率相差较大,平均值为(22.25±24.96)%。结论:细辛药材的无机元素分析能为其品种鉴别、栽培及应用提供一定的依据。

Objective： To explore the character of inorganic elements in Asari Radix et Rhizoma （Xixin）. Method： The contents of 53 inorganic elements in Xixin samples from different localities and species were determined by ICP-AES and ICP-MS. The statistical data were made using SAS. Result： The result demonstrated that Xixin has the high contents of Fe, Cr, Li. It has been observed that the con- tent of Cu and Pb of the samples are much higher than the standard level. The results of hierarchical cluster analysis revealed two groups which correspond with the species of the samples. No correlations between the contents of the inorganic elements and the localities of the samples were found. Some characteristic elements were displayed in some specific areas. The difference of the contents of the 53 inorganic el- ements between root and rhizome of Xixin was reported for the first time. The primary form of inorganic elements in Xixin has been studied for the first time. The result demonstrated that the extraction rate between different elements varied, with the average extraction rate of （22. 25 ±24. 96）%. Conclusion： The inorganic elements analysis of Xixin can provide evidence of its identification, cultivation and application.