电感耦合等离子体质谱法测定蒺藜皂苷中有害元素  

ICP-MS Determination of Hazardous Elements in Saponins of Tribulus

作　　者：周燕[1] 郑培玺[2] 刘莉[3] 王铁夫[1] 杨现力 

机构地区：[1]吉林大学测试科学实验中心,长春130061 [2]吉林大学地球科学学院,长春130061 [3]吉林大学吉林大学博物馆,长春130061 [4]中铁工程设计咨询集团有限公司,北京100055

出　　处：《理化检验（化学分册）》2010年第6期648-649,653,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：国土资源部项目(121201081627)

摘　　要：蒺藜皂苷样品经高压密闭罐消解处理,采用电感耦合等离子体质谱法测定其中铬、锰、镍、镉、钡、铜、锌、砷、硒、汞、铅等11种有害元素的含量。在优化的仪器工作条件下,砷和汞的检出限(3σ)为1×10-4μg.g-1,其余各元素为1×10-5μg.g-1。11种元素的回收率在94.4%～111.8%之间。方法用于茶叶标准物质(GBW 08505)分析,所获得的测定值与标准值相吻合。The samples of saponins of tribulus were digested in a closed vessel under pressure,and the contents of Cr,Mn,Ni,Cd,Ba,Cu,Zn,As,Se,Hg and Pb in the sample solution were determined by ICP-MS.Under the optimum working conditions of the instrument,values of detection limit（3σ） of As and Hg were found to be 1×10-4μg·g-1,and values of detection limit（3σ） of the remainder elements were 1×10-5μg·g-1.Values of recovery of 11 kinds of elements found were in the range of 94.4%-111.8%.The proposed method was applied to the analysis of tea standard sample（GBW 08505）,the results obtained was in conformity with standard values.

关 键 词：电感耦合等离子体质谱法 蒺藜皂苷 消解 有害元素 

分 类 号：O657.31[理学—分析化学]