气相中苯二聚体离子结构的串联质谱研究  

Study on Dimeric Ion of Benzene in Gas Phase By Tandem Mass Spectrometry

作　　者：李智立[1] 刘淑莹[1] 郭兴华[1] 宋风瑞[1] 佘益民[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《分析化学》1997年第6期631-634,共4页Chinese Journal of Analytical Chemistry

摘　　要：应用碰撞诱导解离技术研究了苯自身化学电离条件下和苯化学电离（甲烷为反应气）条件下离子－分子反应产物，ｎ／ｚ １５５和 １５６离子的碰撞诱导解离（ＣＩＤ）碎裂特性，并与化学电离条件下质子化联苯生成的ｍ／ｚ１５５离子的 ＣＩＤ碎裂反应相比较，获得了苯离子－分子反应产物ｍ／ｚ１５５和 １５６离子的结构信息。The reaction character of m/z155 and 156 ions generated from ion-molecular reaction of benzene under self-chemical ionization and chemical ionization (the reaction gas is methane)was studied using collision-induced dissociation, and compared with that of protonated biphenyl generated under the chemical ionization (the reaction gas is methane). The structural information of the m/z155 and 156 ions generated under different conditions was obtained.

关 键 词：离子-分子反应 苯二聚体 串联质谱 离子结构 

分 类 号：O625.11[理学—有机化学]