稀土富勒烯提取液的解析电子轰击质谱  

Desorption Electron Impact Mass Spectrometric Study of Endohedral Rare Earth Fullerene Extracts

作　　者：孙大勇[1] 刘子阳[1] 郭兴华[1] 刘淑莹[1] 

机构地区：[1]中国科学院长春应用化学研究所应用谱学开放实验室,长春130022

出　　处：《分析化学》1997年第6期663-666,共4页Chinese Journal of Analytical Chemistry

摘　　要：采用解析电子轰击质谱对电弧法合成的稀土富勒烯衍生物的提取液进行了质谱分析，有效地检测到富勒烯，稀土富勒烯单电荷、双电荷的分子离子峰。利用同位素贡献确证了某些稀土富勒烯的生成。采用高电流瞬间解析样品，使得谱图中的谱峰强度更加真实地反应出提取液中各组分的相对含量。A successful analysis of the extracts containing rare earth metallofullerenes by desorption electron impact mass spectrometry (DEIMS) was reported in this paper. The peaks corresponding to single, double charge ions of a wide variety of fullerenes and metallofullerenes were observed. The formation of some metallofullerenes were further confirmed using the isotope distribution. The relative intensities of peaks in DEIMS were believed to reflect the relative contents of metallofullerenes more truely due to the use of a high desorp- non current than those in laser desorption-time-of-flight mass spectrometry.

关 键 词：富勒烯 稀土富勒烯 DEIMS 

分 类 号：O614.33[理学—无机化学] O635.1[理学—化学]