摘要
本文在近期所发表的有关文章的基础上，对石墨的非还原热离子发射特性进行了系统的总结。对石墨在Ｃｓ２ＢＯ２＋、Ｃｓ２Ｃｌ＋和Ｃｓ２Ｂｒ＋离子发射中的增强作用进行了讨论，并给出了采用石墨涂样技术正热电离质谱法高精度测定硼氯溴同位素的结果。
The non-reductive thermal ion emission characteristics of graphite has been systematically summarized according to the recent publications.The Cs2BO2+,Rb2BO2+,Cs2Cl+ and Cs2Br+ions emited'from Cs2B4O7,Rb2B4O7,CsCl and CsBr respectivelly have been extremely enhanced by coading filament with graphite during load of samples.Using the technique of loading graphite the best precision for isotopic measurements of B,Cl and Br has been achieved.
出处
《质谱学报》
EI
CAS
CSCD
1995年第1期18-23,共6页
Journal of Chinese Mass Spectrometry Society
关键词
石墨
质谱
硼
氯
溴
同位素
graphite,thermal ionization mass spectrometry,boron,chlorine,bromine,isotope
