脉冲熔融-飞行时间质谱法测定金属材料中氧、氮、氢和氩  

Simultaneous Determination of Oxygen,Nitrogen,Hydrogen and Argon in Metals by Pulse Heating and Time of Flight Mass Spectrometric Method

作　　者：沈学静[1] 王蓬[1] 胡少成[1] 杨植岗[1] 马红权[1] 杨倩倩[1] 高伟[2] 周振[2] 王海舟[1] 

机构地区：[1]钢铁研究总院国家钢铁测试中心,北京100081 [2]上海大学环境与化学工程学院,上海200444

出　　处：《分析化学》2011年第10期1555-1560,共6页Chinese Journal of Analytical Chemistry

摘　　要：采用自主研制的脉冲熔融-飞行时间质谱法可以同时测定金属中O,N,H和Ar。重点讨论质谱谱线的选择,信号获得以及数据处理和校准,并给出O,N,H和Ar 4种的检出限分别为0.021,0.060,0.002和0.002"g/g,线性范围分别为0.070～500"g/g,0.200～400"g/g,0.006～40"g/g和0.005～15"g/g。并利用不同样品对本方法的准确性和精密度进行了验证,实验结果与传统方法吻合。实验表明,本方法准确、有效,可同时测定4种气体元素O,N,H和Ar。A pulse heating and time of flight-mass spectrometric method was used for quantitative determination of oxygen,nitrogen,hydrogen and argon in metals.The analyzing process was introduced,including mass spectral line selection,signal acquisition,data processing and calibration.The detection limits of O,N,H,Ar are 0.021,0.060,0.002,0.002 μg/g,and the linear ranges of O,N,H,Ar are 0.070-500,0.200-400,0.006-40,0.005-15 μg/g,respectively.The accuracy and precision of the method have also been verified by analyzing several kinds of samples.The results are consistent with those of traditional method,which shows that the new method is sensitive and efficient.

关 键 词：脉冲熔融-飞行时间质谱法 氧 氮 氢 氩 

分 类 号：O657.63[理学—分析化学] TG115.3[理学—化学]