黔产中药材太子参块根无机元素分析研究  

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

作　　者：邵代兴[1] 刘红 林昌虎[3] 林莉 周开芳 

机构地区：[1]遵义市土肥站,贵州遵义563000 [2]贵州省产业技术发展研究院,贵阳550025 [3]贵州科学院,贵阳550001 [4]贵州省凤冈县农牧局,贵州遵义564200

出　　处：《中国农学通报》2017年第3期74-80,共7页Chinese Agricultural Science Bulletin

基　　金：贵州省中药现代化重大专项"贵州石斛;半夏等6种中药材产地适宜性技术评价体系构建与产业示范"子课题1-4(黔科合重大专项字[2012]6010号)

摘　　要：通过对黔产道地太子参无机元素的含量进行检测分析,以评价质量现状、拟定重金属限量标准、建立元素指纹图谱和确定特征元素。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≤10 mg/kg、As≤2.0 mg/kg、Cd≤0.3 mg/kg、Hg≤0.15 mg/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。By analyzing the content of inorganic elements in radix pseudostellariae from Guizhou, we aim to assess the present quality of radix pseudostellariae, set a limited standard of heavy metals, establish an element finger-print, and find out the characteristic elements. The content of inorganic elements was measured and an element finger-print was drawn by the ICP-MS. Additionally, WM/T2-2004 was applied to evaluating the quality of heavy metal elements, and the characteristic elements were determined by principal component analysis. The results showed that the content of inorganic elements in radix pseudostellariae was between 0.057 and 959 mg/kg, the coefficient of variation was 0.134 -1.478, and the content of Cd, As, Pb, and Hg was below the Standard of WM/T2-2004 in 90% radix pseudostellariae. The limited standard of heavy metals in radix pseudostellariae was Cr≤6.5 mg/kg, Cu≤10 mg/kg, As≤2.0 mg/kg, Cd≤0.3 mg/kg, Hg≤0.15 mg/kg, Pb≤4.0 mg/kg. The features of the inorganic elements finger-print eould provide theoretical basis in identifying the quality herbal medicines. The of radix pseudostellariae and distinguish the radix pseudostellariae from other Chinese characteristic inorganic elements of radix pseudostellariae were found to be Cd, Cu, Co, Zn, Fe, Ca, Mg, and A1. Radix pseudostellariae from Guizhou contained abundant inorganic elements, the content of heavy metals was below the evaluation criterion, the limited standard of heavy metals was proposed, the element finger-print was drawn, and the characteristic elements were determined eventually.

关 键 词：贵州 太子参 无机元素 主成分分析 元素指纹图谱 

分 类 号：X82[环境科学与工程—环境工程]