无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ
化工分析与监测

电感耦合等离子体质谱法测定硫酸镍中痕量铊

  • 廖双双 ,
  • 谢堂锋 ,
  • 巩勤学 ,
  • 袁郭斌
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  • 1.湖南邦普循环科技有限公司,湖南 长沙 410600
    2.广东邦普循环科技有限公司,广东 佛山 528137
廖双双(1996— ),女,助理工程师,主要从事锂离子电池材料制备及分析检测方面的研究;E-mail:1227241825@qq.com

收稿日期: 2022-11-16

  网络出版日期: 2023-09-19

基金资助

长沙市技术创新中心项目(kh2101001);广东省电池循环利用企业重点实验室项目(2021B1212050002)

Determination of trace thallium in nickel sulfate by inductively coupled plasma mass spectrometry

  • LIAO Shuangshuang ,
  • XIE Tangfeng ,
  • GONG Qinxue ,
  • YUAN Guobin
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  • 1.Hunan Brunp Recycling Technology Co. Ltd. ,Changsha 410600,China
    2.Guangdong Brunp Recycling Technology Co. ,Ltd. ,Foshan 528137,China

Received date: 2022-11-16

  Online published: 2023-09-19

摘要

为了进一步提升新能源工业生产领域中痕量铊元素的分析准确性,使用iCAP RQ型电感耦合等离子体质谱(ICP-MS)建立了一种测试硫酸镍中铊含量的方法。对该方法引入的质谱仪干扰进行了分析,提出了采用“干扰离子动能歧视消除模式(KED)”分析模式、控制可溶解固体总量(TDS)和引入铑、铼内标等降低干扰的方法。确定了前处理条件中可溶解固体总量和溶解温度分别为0.2%与210 ℃。方法验证结果表明:该方法的检出限为0.003 6 ng/mL,精密度测试中相对标准偏差(RSD)为1.3%~2.5%,加标回收率为98.4%~100.8%。在实验室间比对中,RSD为0~5.7%,再现性良好。该测试方法简单、快速、准确度高,可广泛适用于硫酸镍产业链的铊含量监控。

本文引用格式

廖双双 , 谢堂锋 , 巩勤学 , 袁郭斌 . 电感耦合等离子体质谱法测定硫酸镍中痕量铊[J]. 无机盐工业, 2023 , 55(9) : 121 -125 . DOI: 10.19964/j.issn.1006-4990.2022-0681

Abstract

In order to further improve the analytical accuracy of trace thallium in the field of new energy industrial production,this paper established a method to determine the content of thallium in nickel(Ⅱ) sulfate using iCAP RQ type ICP-MS.The interference of mass spectrometer introduced by this method was analyzed,which could be reduced by using interference ion kinetic energy discrimination elimination mode(KED) analysis mode,controlling the total dissolved solids(TDS) and introducing rhodium and rhenium internal standards.The total amount of soluble solids and the dissolution temperature in the pretreatment conditions were determined to be 0.2% and 210 ℃,The method validation results showed that the detection limit of the method was 0.003 6 ng/mL,the RSD of the precision test was 1.3%~2.5%,and the recovery rate was 98.4%~100.8%.In the comparison between laboratories,the RSD was 0~5.7%,and the reproducibility was good.The method was simple,rapid,and highly accurate,and could be widely used in the monitoring of thallium content in the nickel sulfate industry chain.

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