ICP-OES测定藏药马尿泡不同部位中多种元素的含量  

Determination of elements in different parts of tibetan medicine przewalskia tangutica Maxim. by ICP-OES

作　　者：舍莉萍[1,2] 王延花 徐文华[1] 周玉碧[1] 孙胜男[1,2] 孙菁[1] 

机构地区：[1]中国科学院西北高原生物研究所,青海省青藏高原特色生物资源研究重点试验室,西宁810008 [2]中国科学院研究生院,北京100049 [3]青海省环境监测中心站,西宁810008

出　　处：《分析试验室》2012年第11期10-13,共4页Chinese Journal of Analysis Laboratory

基　　金：中国科学院“西部之光”人才培养计划项目(2010年度);中国科学院知识创新工程重要方向项目(KSCX2-EW-J-26);国家科技支撑计划项目(2010BAK68B02)资助

摘　　要：采用微波消解结合电感耦合等离子体发射光谱(ICP-OES)法测定藏药马尿泡不同部位中Ca、Mg、Fe、Zn等21种元素的含量,该方法线性关系良好,r≥0.9980,加标回收率为95.4%～104.2%,相对标准偏差均小于3.9%,具有良好的准确度和精密度。结果表明,藏药马尿泡中含有种类丰富的常、微量元素。其中,尤以Ca、Mg、Fe、Zn等在各部位含量较高。此测定结果可为探讨藏药马尿泡中元素含量与其药效的相关性提供一定的科学数据。In this paper, the contents of 21 elements in different parts of Tibetan medicine Przewalskia tangutica Maxim. were determined by inductively coupled plasma optical emission spectrometer （ICP-OES） with microwave digestion method. Linear correlation coefficients for the analyzed elements were larger than 0. 9980 and excellent linear responses were obtained. Recoveries of this method obtained by standard addition ranged from 95.4% to 104. 2% with RSD ≤ 3.9%. Therefore, the accuracy and precision of the method were confirmed. There was a wide variety of macro - and mieroelements in P. tangutica, of which Ca, Mg, Fe and Zn were rich in high concentrations in different parts. The results could provide a scientific basis for the further studies of the relationship between the officinal effects of P. tangutica and the analyzed elements.

关 键 词：ICP—OES 微波消解 马尿泡 元素 

分 类 号：O657.3[理学—分析化学]