supported by Huck Institutes of the Life Sciences at Penn State University through the Huck Innovative and Transformational Seed Grant(HITS).  

作　　者：Liang Fu Guangsheng Huang Yaobo Hu Xianhua Chen Jingfeng Wang Fusheng Pan 

机构地区：[1]College of Materials Science and Engineering,Chongqing University,Chongqing 400045,China [2]National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400045,China

出　　处：《Journal of Magnesium and Alloys》2025年第1期120-129,共10页镁合金学报(英文)

基　　金：supported by the Natural Science Foundation of China(52171103 and 21975289).

摘　　要：High purity magnesium is not only an important basic raw material for semiconductor and electronics industries,but also a promising new generation of electrochemical energy storage materials and biomedical materials.Impurities in high-purity magnesium affect material properties,which has become the most critical factor restricting its application.However,accurate analysis of multiple ultra-trace impurity elements in high-purity magnesium is extremely challenging.In this paper,based on the synergistic effect of N_(2)O/H_(2) reaction gas mixture to eliminate spectral interference of inductively coupled plasma tandem mass spectrometry(ICP-MS/MS),a new strategy for the quantification of 45 ultra-trace impurity elements in high-purity magnesium was proposed.The results indicated that the limits of detection(LOD)were in the range of 0.02–18.5 ng L^(−1);the LODs of the challenging non-metallic elements Si and S were 18.5 and 12.2 ng L^(−1),respectively;and the LODs of all the other analytes were less than 10 ng L^(−1).Even under hot plasma conditions,LODs of alkali metal elements were also less than 5 ng L^(−1).The spike recovery of each analyte was 93.6%–107%,and the relative standard deviation(RSD)was 3.2%–6.9%,respectively.At a 95%level of confidence,no significant differences were found between the results obtained under the optimal conditions for the analyte with the developed method and the measurement results of SF-ICP-MS.The developed method indicated low LOD,high sample throughput,and complete interference elimination,demonstrating a new avenue for the rapid determination of ultra-trace elements in high-purity magnesium.

关 键 词：High purity magnesium Impurity elements ICP-MS/MS N2O/H2 Reaction gas mixture 

分 类 号：O657.3[理学—分析化学]