期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 33, 页码 10842-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja802088u
关键词
-
资金
- National Science Foundation
Electrospray ionization of tyrosine from a 3:1 (v:v) CH(3)OH/H(2)O solution is found to afford an M - H ion which is a 70:30 mixture of phenoxide and carboxylate ions. This corresponds to the gas-phase equilibrium composition and not the liquid-phase proportions. In contrast the carboxylate is produced as the dominant ion (similar to 95%) from anhydrous CH(3)CN and CH(3)CN/H(2)O mixtures. The addition of small amounts of CH(3)OH to the solvent, however, convert the M - H ion back into the gas-phase isomeric ratio. The isomeric structure therefore depends on the solvent system from which an ion is sprayed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据