IMPROVEMENTS IN ION-TRAP CHEMICAL-IONIZATION PERFORMANCE

被引：8

作者：

CAIRNS, T ^{[1
]}

CHIU, KS ^{[1
]}

SIEGMUND, E ^{[1
]}

WEBER, M ^{[1
]}

机构：

[1] FINNIGAN MAT CORP,SAN JOSE,CA 95134

来源：

RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1992年 / 6卷 / 07期

关键词：

D O I：

10.1002/rcm.1290060709

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Ion-trap chemical-ionization performance has been improved by application of a modified scan function for the rejection of the undesired electron-ionization-like (EI-like) ions formed at the beginning of the reaction ionization period. The net effect of this software modification to the automatic reaction control is to produce chemical ionization (CI) spectra that are no longer adulterated with concentration-dependent EI-like ions. Under such improved conditions, CI spectra from an ion trap can now be directly compared with CI spectra produced on conventional quadrupole and magnet-scanning instruments.

引用

页码：449 / 453

页数：5