电感耦合等离子体质谱法测定钛及钛合金中痕量汞和钇  

Determination of Trace Mercury and Yttrium in Titanium and Titanium Alloys by Inductively Coupled Plasma Mass Spectrometry

作　　者：马晓敏 刘雷雷[1] 禄妮 杨坤 Ma Xiaomin;Liu Leilei;Lu Ni;Yang Kun(Xi’an Hantang Analysis and Testing Co.,Ltd.,Xi’an 710201,China;State Key Laboratory of Porous Metal Materials,Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China)

机构地区：[1]西安汉唐分析检测有限公司,陕西西安710201 [2]西北有色金属研究院金属多孔材料国家重点实验室,陕西西安710016

出　　处：《钛工业进展》2023年第5期26-29,共4页Titanium Industry Progress

基　　金：陕西省重大科技专项(2019zdzx01-04-03);科技开放共享平台项目(2021PT-024,2017KTPT-08)。

摘　　要：痕量杂质元素的高效精准测定是高品质钛及钛合金稳定生产的核心保障技术。针对现有检测方法存在的钛合金中痕量杂质元素检测方法的空白,采用电感耦合等离子体质谱法(ICP-MS),通过优化电感耦合等离子体质谱仪工作参数,系统研究了检测用同位素种类、溶样方法以及内标元素对测试精准度的影响规律,建立了钛及钛合金中痕量汞和钇的检测方法。结果表明:所建立的检测方法对于汞和钇含量为0.10~100.0ng/mL的样品,其线性相关系数高于0.999,汞和钇的检出限分别为0.07 ng/mL和0.06 ng/mL,样品的加标回收率在97.0%~102.2%之间。该检测方法灵敏度高、结果准确,可以满足高品质钛及钛合金中痕量汞和钇的高效精准测定。The efficient and accurate determination of trace impurities is the core guarantee technology for the stable production of high-quality titanium and titanium alloys.Aiming at the blank of the existing detection methods for trace impurity elements in titanium alloys,this paper adopts inductively coupled plasma mass spectrometry(ICP-MS),through the optimization of the working parameters of inductively coupled plasma mass spectrometer,systematically studies the influence of the types of isotopes used for detection,sample dissolution methods and internal standard elements on the test accuracy,and establishes a detection method for trace mercury and yttrium in titanium and titanium alloys.The results show that the detection method established has a linear correlation coefficient higher than 0.999 for mercury and yttrium concentrations ranging from 0.10 ng/mL to 100.0 ng/mL.The detection limits for mercury and yttrium are 0.07 ng/mL and 0.06 ng/mL,respectively.The recovery rate of the sample is between 97.0%and 102.2%.These results show that the detection method established has high sensitivity and accuracy,and can meet the efficient and accurate determination of trace mercury and yttrium in high-quality titanium and titanium alloys.

关 键 词：电感耦合等离子体质谱法 钛及钛合金 汞 钇 

分 类 号：TG146.23[一般工业技术—材料科学与工程]