微波消解-电感耦合等离子体质谱法测定铬铁合金中的10种痕量元素  

Determination of 10 trace elements in ferrochrome by ICP-MS with microwave digestion

作　　者：黄丹宇 刘巍[1,2] 陶美娟 周韵[1] Huang Danyu;Liu Wei;Tao Meijuan;Zhou Yun(Shanghai Research Institution of Materials,Testing Center,Shanghai Customs Industrial Products and Raw Materials Testing Technology Center,Shanghai 200437,China;Shanghai Municipal Key Lab for Evaluation Application of Engineering Materials,Shanghai 200437,China)

机构地区：[1]上海材料研究所检测中心,上海海关工业品与原材料检测技术中心,上海200437 [2]上海市工程材料应用与评价重点实验室,上海200437

出　　处：《分析仪器》2021年第2期23-27,共5页Analytical Instrumentation

基　　金：典型性废金属属性鉴别及快速筛查技术的研究(2019HK014)。

摘　　要：将微波消解与电感耦合等离子体质谱法相结合,优化了铬铁合金溶解方法。优化电感耦合等离子体质谱仪的仪器参数,利用标准加入法校正基体效应。在此基础上,建立了一套电感耦合等离子体质谱法检测铬铁合金中砷、锡、锑、镉、汞、铅、镧、铈、铊、铋10种痕量元素的检测分析方法。检出限、加标回收、精密度相关实验表明:该方法检出限在0.04~0.3μg/L之间;加标回收率在85.6~114.1%%之间;精密度在1.4~3.5%之间。该方法简单、快速、高效,可满足铬铁合金市场上对杂质元素含量检测的需求。The parameters of inductively coupled plasma mass spectrometer were optimized,and the matrix effects were corrected by standard addition method.The ICP-MS method was developed for determination of trace elements such as arsenic,tin,antimony,cadmium,mercury,lead,lanthanum,cerium,thallium and bismuth in ferrochrome.The experimental results showed that the detection limit was in the range of 0.04—0.3μg/L,the standard recovery rate was between 85.6%and 114.1%,and the precision was between 1.4%and 3.5%.The method is simple,rapid and efficient.

关 键 词：微波消解 电感耦合等离子体质谱法 铬铁合金 痕量元素 

分 类 号：O657.63[理学—分析化学] TG141[理学—化学]