Intensity Exaggeration of Endohedral Metallofullerenes in Laser Desorption-Ionization Time-of-Flight Mass Spectrometry  

作　　者：Da Yong SUN Wen Guo XU and Shu Ying LIU(The No. 9 Laboratory, Changchun Institute of Applied Chemistry,Chinese Academy of Sciences, Changchun 130022) 

出　　处：《Chinese Chemical Letters》1998年第8期761-764,共4页中国化学快报（英文版）

摘　　要：The laser-desorption-ionization time-of-flight mass spectrometry and desorption-electron-ionization mass spectrometry were employed for the characterization of metallofullerenes extract. it was found that the relative intensities of metallofullerenes in this positive-ion, negative-ion LD-TOF MS and DEI MS were much different. This phenomenon should have relationship with the peculiar ionization energies and electron affinities of metallofullerenes.The laser-desorption-ionization time-of-flight mass spectrometry and desorption-electron-ionization mass spectrometry were employed for the characterization of metallofullerenes extract. it was found that the relative intensities of metallofullerenes in this positive-ion, negative-ion LD-TOF MS and DEI MS were much different. This phenomenon should have relationship with the peculiar ionization energies and electron affinities of metallofullerenes.

关 键 词：METALLOFULLERENES LD-TOF MS 

分 类 号：O657.6[理学—分析化学]