异戊二烯的光氧化产物——非对映异构体2-甲基丁四醇的质谱解析  

FRAGMENTATION STUDY OF DIASTEREOISOMERIC 2-METHYLTETROLS,PHOTOOXIDATION PRODUCTS OF ISOPRENE

作　　者：汪午[1,2] 李怀建[1] 张宏伟[2] 

机构地区：[1]上海大学环境污染与健康研究所,上海200072 [2]南方医科大学,广州510515

出　　处：《环境化学》2009年第4期594-597,共4页Environmental Chemistry

基　　金：国家自然科学基金(No.20677036;20877051);上海市浦江人才计划(06PJ14044);国家教育部留学回国人员启动基金;上海市教委科研创新(06AZ066);上海市重点学科(S30109)资助项目

摘　　要：利用氘标记三甲基硅烷醚衍生方法和MS/MS技术,深入探讨了非对映异构体2-甲基丁四醇的三甲基硅烷醚衍生物在电子轰击和化学电离下复杂的质谱表现,从而为该类化合物的结构鉴定提供借鉴和指导.The diastereoisomeric 2-methyltetrols, 2-methyhhreitol and 2-methylerythritol, were recently reported as majoy secondary aerosol components in natural forest aerosols and proposed as molecular markers for the pho- tooxidation of isoprene. In this study, the eomplex eleetron and methane chemical ionization behaviors of their trimethylsilyl ethers were examine. In order to gain insight into their fragmentation behaviors, deuterium labeling of the trimethylsilyl groups and ion trap MS/MS experiments were performed.

关 键 词：2-甲基丁四醇 异戊二烯光氧化产物 质谱解析 

分 类 号：X131.1[环境科学与工程—环境科学]