THE ORIGIN AND ION SPECTRA OF NONCOVALENT PEPTIDE DIMERS OBSERVED IN LIQUID SECONDARY-ION MASS-SPECTROMETRY EXPLAINED VIA FIRST-ORDER GAS-PHASE KINETICS

被引：3

作者：

CUNNIFF, JB

VOUROS, P

KAPLAN, DL

FOSSEY, SA

机构：

[1] NORTHEASTERN UNIV,DEPT CHEM,BOSTON,MA 02115

[2] NORTHEASTERN UNIV,BARNETT INST,BOSTON,MA 02115

[3] USA,NATICK RES DEV & ENGN CTR,BIOTECHNOL BRANCH,NATICK,MA 01760

来源：

BIOLOGICAL MASS SPECTROMETRY | 1994年 / 23卷 / 12期

关键词：

D O I：

10.1002/bms.1200231205

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Static liquid secondary ion mass spectra were generated for a variety of dipeptides dissolved in common liquid secondary ion mass spectrometric matrices. The relationship of the ion intensities of the monomer and non-covalent dimers was examined in order to determine the origin of non-covalent dimerization. The results demonstrate that the ion intensities are independent of solution equilibria and are indicative of first-order gas-phase kinetics.

引用

页码：741 / 748

页数：8