价键理论用于分析高温合金中的痕量元素  

Application of valence bond theory in the analysis of trace elements in superalloys

作　　者：高颂 王亚宁 庞晓辉 田悦鸣 GAO Song;WANG Yaning;PANG Xiaohui;TIAN Yueming(School of Materials Science and Engineering,Beihang University,Beijing 100191,China;AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Beijing 100095,China)

机构地区：[1]北京航空航天大学材料科学与工程学院,北京100191 [2]中国航发北京航空材料研究院,北京100095 [3]航空材料检测与评价北京市重点实验室,北京100095

出　　处：《分析试验室》2023年第8期1045-1049,共5页Chinese Journal of Analysis Laboratory

基　　金：国家科技重大专项(J2019-VI-0023-0139)资助。

摘　　要：基于电感耦合等离子体串联质谱法(ICP-MS/MS),选择高温合金中关键痕量元素Se作为研究对象。应用价键理论,预测Se^(+)与O_(2)可形成产物离子SeO^(+)。通过优化产物离子SeO^(+)的生成条件,实现了痕量Se的准确测定,检出限达到0.038μg/g。考察了非金属元素与O_(2)的价键结合过程,并扩展验证了该理论在ICP-MS/MS法测定高温合金中痕量S,P和As的应用。The key trace element Se in superalloys was selected as the research object by using inductively coupled plasma tandem mass spectrometry(ICP-MS/MS).The valence bond theory was applied to predict the ion SeO^(+)produced from Se^(+)reacting with O_(2).By optimizing the formation conditions of SeO^(+),trace Se was determined accurately with the detection limit of 0.038μg/g.The valence bonding process between nonmetallic elements and O_(2)was studied,and the application of this theory in the determination of trace S,P and As contents through ICP-MS/MS in superalloys was expanded.

关 键 词：价键理论 电感耦合等离子体串联质谱法 痕量元素 高温合金 

分 类 号：O657.63[理学—分析化学]