摘要
建立电感耦合等离子体质谱法测定镍基单晶高温合金DD416中镓、锡、锑、铅、铋元素的含量。以盐酸–硝酸(体积比3∶1)混合酸为消解剂,利用微波消解仪消解样品,以Rh(10μg/L)为内标元素。镓的线性范围为0~50μg/g,锡、锑、铅的线性范围为0~20μg/g,铋的线性范围为0~2μg/g,线性相关系数均大于0.999,检出限分别为0.01,0.2,0.1,0.07,0.006μg/g。用该方法对标准物质进行测定,测定结果与标准值之间的相对误差在7.7%~22.7%范围内。样品加标回收率为98.2%~108.0%,测定结果的相对标准偏差为0.1%~1.5%(n=5)。该方法可以快速、准确地对镍基单晶高温合金DD416中镓、锡、锑、铅、铋元素进行同时测定。
Gallium,tin,antimony,lead and bismuth in nickel-based single crystal superalloy DD416 alloy were determined by inductively coupled plasma mass spectrometry. The sample was digested by microwave digestion apparatus with hydrochloric acid–nitric acid (volume rate 3∶1) as digesting agent,and Rh(10 μg/L) was used as internal standard element. The linear range was 0–50 μg/g for gallium,0–20 μg/g for tin,antimony,lead,and 0–2 μg/g for bismuth. The linear correlation coefficients were all more than 0.999. The detection limits were 0.01,0.2,0.1,0.07,0.006 μg/g,respectively. The reference materials were measured by this method,and the relative error between the measurement results and the standard values was in the range of 7.7%–22.7%. The recoveries ranged from 98.2% to 108.0%,and the relative standard deviations of the results were 0.1%–1.5%(n=5). The method can quickly,accurately and simutaneously determine the elements of gallium,tin,antimony,lead and bismuth in nickel-based single crystal superalloy DD416.
作者
陈靖
张艳
高颂
CHEN Jing;ZHANG Yan;GAO Song(AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China)
出处
《化学分析计量》
CAS
2019年第4期87-90,共4页
Chemical Analysis And Meterage
关键词
电感耦合等离子体质谱法
微波消解
镓
锡
锑
铅
铋
inductively coupled plasma mass spectrometry
microwave digestion
gallium
tin
antimony
lead
bismuth
