摘要
选用九里香原料建立微波消解ICP-MS法同时测定复杂样品中6种重金属(Pb、Cd、Cu、Hg、As、Cr)含量的方法。结果表明,通过系统聚类分析,6种重金属元素的线性相关系数均大于0. 996,平均加样回收率在91%～98%之间,RSD在4%之内。不同批次的九里香药材中各种金属元素含量差异较大,建立的方法具有操作简单,分析速度快,准确度高等优点,可以用于复杂植物原料样品中多种重金属的含量测定,在制药工业生产中对原料安全性保障具有实践意义。
The ICP-MS method of microwave digestion is established for the simultaneous determination of six heavy metals( Pb,Cd,Cu,Hg,As,Cr) in complex samples. The results show that after the cluster analysis,the linear correlation coefficient of the 6 heavy metals is more than 0. 996,and the average recovery rate is between 91% ~ 98% and the RSD is within 4%,the contents of various metal elements in different batches of Murraya exotica L. were different,and the established method had the advantages of simple operation,fast analysis speed,high accuracy and so on. And it can be used to determine the contents of many heavy metals in complex plant raw material samples,and it also has practical significance in the pharmaceutical industry to ensure the safety of raw materials.
作者
杨薪正
王兰
沈文
龚频
谭飞
YANG Xin-zheng;WANG Lan;SHEN Wen;GONG Pin;TAN Fei(School of Food and Biological Engineering,Shaanxi University of Science and Technology,Xi’an 710021,China)
出处
《应用化工》
CAS
CSCD
北大核心
2018年第12期2796-2799,共4页
Applied Chemical Industry
基金
国家自然科学基金项目(21407104)
榆林科技计划项目(2016-13-3)
关键词
复杂样品
九里香原料
电感耦合等离子体质谱法
重金属
complex samples
raw material of Murraya exotica L.
inductively coupled plasma mass spectrometry
heavy metal
