摘要
建立微波消解-电感耦合等离子体质谱(ICP-MS)法同时分析枳椇果梗、枳椇子中Be、Mg、Al、Ti、V、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Sr、Mo、Ag、Cd、Sn、Sb、Ba、Tl、Pb等22种元素的含量。样品经微波消解后,利用ICP-MS测定上述22种元素,通过标准曲线计算其含量。实验结果表明,22种元素在其线性范围内线性关系良好,r值>0.995;检出限为0.0007~1.0713μg/L;重复性的相对标准偏差(RSD)<3%;精密度的相对标准偏差(RSD)<7%;回收率为81.14%~112.91%。该方法灵敏度高,重复性好,分析速度快,适用于枳椇果梗、枳椇子中22种元素的含量测定。
In this study we established a method for simultaneous determination of Be,Mg,Al,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Sr,Mo,Ag,Cd,Sn,Sb,Ba,Tl and Pb in Hovenia acerba peduncle and Hovenia acerba seed by ICP-MS.After microwave digestion of the samples,the 22 metals were determined by ICP-MS,and their contents were calculated by standard curve.The results showed that the 22 metals had good linear relationship within the linear range,R>0.995,the detection limit was between 0.0007μg/L and 1.0713μg/L,the relative standard deviation of repeatability was below 3%,the relative standard deviation of precision was below 7%,and the recovery rate was between 81.14%and 112.91%.The method has the advantages of high sensitivity,good repeatability and fast analysis speed,and is suitable for the determination of the 22 metals in Hovenia acerba peduncle and Hovenia acerba seed.
作者
陈维
杨文
龙丽娜
李开斌
CHEN Wei;YANG Wen;LONG Lina;LI Kaibin(Anshun Institute for Food and Drug Control,Anshun 561000,China)
出处
《贵州科学》
2020年第5期11-14,共4页
Guizhou Science
基金
安顺市科技创新平台建设计划项目(安市科平〔2017〕03)
贵州省地方标准——枳椇子质量标准提升研究。
关键词
贵州
枳椇果梗
枳椇子
ICP-MS
Guizhou
Hovenia acerba peduncle
Hovenia acerba seed
ICP-MS
