Inorganic Elements in Tuber of Chinese Herbal Medicine Radix Pseudostellariae from Guizhou Province  

黔产中药材太子参块根无机元素分析研究(英文)

作　　者：邵代兴[1] 罗希榕 刘红 林昌虎[4] 林莉 周开芳 刘云[6] 覃成[2,6] 

机构地区：[1]遵义市土肥站,贵州遵义563000 [2]遵义市作物基因资源与种质创制重点实验室、遵义市农业科学研究院,贵州遵义563006 [3]贵州省产业技术发展研究院,贵州贵阳550025 [4]贵州科学院,贵州贵阳550001 [5]贵州省凤冈县农牧局,贵州遵义564200 [6]遵义医学院医学与生物学研究中心、贵州省普通高等学校特色药物肿瘤防治特色重点实验室,贵州遵义563099

出　　处：《Agricultural Science & Technology》2017年第5期792-797,842,共7页农业科学与技术（英文版）

基　　金：Supported by the Science and Technology Project of Zunyi City (Zunyi Science Cooperation[2016]12);Key Lab Construction Project of the Educational Department of Guizhou Province (Project No.:Guizhou Education Cooperation KY[2014]212);the Key Special Project for the Modernization of Chinese Traditional Medicine of Guizhou Province (Guizhou Science Cooperation[2012]6010)~~

摘　　要：By analyzing the contents of inorganic elements in Radix Pseudostellariae from Guizhou Province, the aim was to assess the present quality of Radix Pseu- dostellariae, set limited standards of heavy metals, establish element fingerprints, and find out the characteristic elements. ICP-MS was used to measure the content of inorganic elements and map the element fingerprints. Additionally, WM/T2-2004 was applied to evaluate the quality of heavy metal elements, and the characteristic elements were determined by principal component analysis. The results showed that the contents of inorganic elements in Radix Pseudostellariae were between 0.057 and 959 mg/kg with the coefficients of variation ranging from 0.134 to 1.478, and the contents of Cd, As, Pb, and Hg were below the Standard of WM/T2-2004 in 90% of Radix Pseudostellariae. The standard limits of heavy metals in Radix Pseu- dostellariae were Cr≤6.5 mg/kg, Cu≤10 mg/kg, As≤2.0 mg /kg, Cd≤0.3 mg/kg, Hg≤0.15 mg/kg, and Pb≤4.0 mg/kg. The features of the inorganic eJements finger- prints could provide theoretical basis of identifying the quality of Radix Pseudostel- lariae and distinguishing Radix Pseudostellariae from other Chinese herbal medicines. The characteristic inorganic elements of Radix Pseudostellariae were found to be Cd, Cu, Co, Zn, Fe, Ca, Mg, and AI. Radix Pseudostellariae from Guizhou Province contained abundant inorganic elements, and the contents of heavy metals were below the evaluation criterion. The study provided a reference for the future development of the limiting values of heaw metals in Radix Pseudostellariae.该文采用ICP-MS测定其无机元素含量和绘制元素指纹图谱、用WM/T2-2004对重金属元素进行质量评价,借助主成分分析法确定特征元素。结果表明:太子参无机元素的含量在0.057~959 mg/kg之间、变异系数在0.134~1.478之间,90%太子参中Cd、As、Pb、Hg含量低于WM/T2-2004标准,太子参重金属限量值为:Cr≤6.5 mg/kg、Cu≤10mg/kg、As≤2.0 mg/kg、Cd≤0.3 mg/kg、Hg≤0.15mg/kg、Pb≤4.0 mg/kg,无机元素指纹图谱的特性可以为鉴定太子参质量和区分太子参与其他中药材提供依据,Cd、Cu、Co、Zn、Fe、Ca、Mg、Al是太子参的特征无机元素。黔产太子参中含有丰富的无机元素,90%样品重金属含量未超过现有评价标准,拟定太子参重金属限量值参考值、建立元素指纹图谱和确定了特征无机元素。

关 键 词：GUIZHOU Radix Pseudostellariae Inorganic element Principal componentanalysis Element fingerprint 

分 类 号：S567.53[农业科学—中草药栽培]