摘要
研究了钕基体效应对电感耦合等离子体发射光谱法测定钕中9种微量金属杂质元素(Na、Mg、Al、K、Ca、Fe、Cr、Zn、Cu)的影响。通过对比筛选多条谱线确定了钕基体中各元素的优选分析谱线,溶液体系酸度影响研究发现酸度对钕基体溶液中各元素强度影响较小,研究了基体浓度对每一个杂质元素谱峰强度和含量测试影响程度及趋势。当钕基体浓度不大于10000μg/mL时,对于Zn 206.200 nm和Cr 267.716 nm可采用绝对谱峰强度规避钕基体影响而无需基体匹配的快速测量方法。钕基体影响研究可为后续电感耦合等离子体发射光谱法测定钕中微量金属杂质提供参考。
The effect of matrix effect of neodymium on the determination of nine trace metal impurity elements(Na,Mg,Al,K,CA,Fe,Cr,Zn,Cu)in neodymium by inductively coupled plasma atomic emission spectrometry(ICP-OES)was studied.By comparing and screening multiple spectral lines,the optimal analytical spectral lines of each element in neodymium matrix were determined.The acidity was studied which had little effect on the strength of elements in the solution.The influence degree and trend of matrix concentration on the peak intensity and content of each impurity element were studied.When the concentration of neodymium was less than 10000μg/mL for Zn 206.200 nm and Cr 267.716 nm,the absolute peak intensity can be used to avoid the influence of neodymium matrix without matrix matching.The research on the effect of Nd matrix can provide guidance for the subsequent determination of trace metal impurities in Nd by ICP-OES.
作者
安晓娇
徐梦恬
An Xiaojiao;Xu Mengtian(Institute of Physical and Chemical Engineering of Nuclear Industry,Tianjin 300180,China)
出处
《化学分析计量》
CAS
2021年第7期47-51,共5页
Chemical Analysis And Meterage
关键词
电感耦合等离子体发射光谱法
钕
金属杂质
基体影响
inductively coupled plasma atomic emission spectrometry
neodymium
metal impurity
matrix influence
作者简介
通信作者:安晓娇,硕士研究生,高级工程师,主要从事理化检测技术研究工作。
