摘要
目的:应用电感耦合等离子体质谱(ICP-MS)仪,建立辽五味子、人参、关龙胆、辽细辛、柴胡中铅(Pb)、镉(Cd)、铬(Cr)、砷(As)、硒(Se)、镍(Ni)、铜(Cu)7种重金属元素的测定方法。方法:样品经微波消解,以锗(72Ge)、铟(115In)、铋(209Bi)为内标,采用ICP-MS法同时测定上述7种元素的含量。结果:对于各测定元素,标准曲线的相关系数r≥0.9995,回收率为85.7%-96.2%,相对标准偏差为1.9%~6.5%。结论:该方法简便、快速、准确,可用于中药材中这7种重金属元素的含量测定。
Objective:To develop a inductively coupled plasma mass spectrometry(ICP-MS)method to determine seven heavy metal elements such as Pb,Cd,,Cr,As,Se,Ni,Cu in Liao Schisandra chinensis,Ginseng,Gentiana scabra,Liao Asa⁃rum,bupleurum.Method:The samples were dissolved by microwave digestion,Germanium(72Ge),indium(115In)and bismuth(209Bi)were used as internal standards.The contents of the above seven elements were determined by ICP-MS.Results:For all of the analyzed heavy metals,the correlative coefficient of the calibration curves was in the range of 0.9995~0.9999.The recovery rates were in the range of 85.7%~96.2%,and RSD were in the range of 1.9%~6.5%.Conclusion:The method is simple,rapid,accurate and can be used for the determination of these seven heavy metals in Chinese herbal medicines.
作者
徐宜宏
张敏
付海滨
孔德英
孙双艳
孙涛
陈丽静
Xu Yi-hong;Zhang Min;Fu Hai-bin;Kong De-ying;Sun Shuang-yan;Sun Tao;Chen Li-jing(College of Engineering,Shenyang Agricultural University,Shenyang,Liaoning 110866,China;Technology Center of Shenyang Customs,Shenyang,Liaoning 110016,China;Technology Center of Chongqing Customs,Chongqing 400020,China;Research Center of GACC for international Inspection and Quarantine Standards and Technical Regulations,Beijing 100013,China)
出处
《福建分析测试》
CAS
2021年第1期7-10,共4页
Fujian Analysis & Testing
基金
国家质检总局科技计划项目(2014IK153)
辽宁省大型科学仪器设备共享服务平台能力建设项目(2017102009)
沈阳市科技计划项目(F10-235-4-00和17-159-8-00)。
关键词
微波消解
ICP-MS
中药材
重金属
Microwave digestion
ICP-MS
Traditional Chinese medicine
Heavy metal