INFLUENCE OF COOLING TIME ON THE INTERNAL ENERGY OF IONS SUBJECTED TO RESONANCE EXCITATION IN A QUADRUPOLE ION-TRAP

被引：22
|
作者：
LIERE, P
BLASCO, T
MARCH, RE
TABET, JC
机构：
[1] UNIV PARIS 06,CHIM ORGAN STRUCT LAB,ERS 73,PARIS 05,FRANCE
[2] TRENT UNIV,DEPT CHEM,PETERBOROUGH,ON K9J 7B8,CANADA
来源：
RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1994年 / 8卷 / 12期
关键词：
D O I：
10.1002/rcm.1290081209
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
This study demonstrates the influence of cooling time, applied prior to (and after) resonance excitation, on the internal energy carried by ions subjected to tickle excitation. Competitive fragmentations of ionized butylbenzene have been used to estimate the internal energy average transferred during collision processes. Two competitive effects have been observed by using a delay time before tickle: kinetic energy relaxation (up to 15 ms) related to an internal energy decrease effect and, at higher cooling time values, collisional excitation with helium buffer gas allows one to increase the internal energy of precursor ions.
引用
收藏
页码：953 / 956
页数：4
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