COLLISIONALLY-ACTIVATED DISSOCIATION OF METHANE MOLECULAR ION - ANALYSIS OF A MASS-ANALYZED ION KINETIC-ENERGY PEAK SHAPE

被引:14
|
作者
KIM, BJ [1 ]
KIM, MS [1 ]
机构
[1] SEOUL NATL UNIV,COLL NAT SCI,DEPT CHEM,SEOUL 151742,SOUTH KOREA
关键词
D O I
10.1002/rcm.1290040907
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Collisionally‐activated dissociation (CAD) of methane molecular ion to methyl ion is studied in the kiloelectronvolt collision energy region by mass‐analysed ion kinetic energy (MIKE) spectrometry. The CAD‐MIKE peak shape was deconvoluted using the algorithm developed previously. The kinetic energy release distribution evaluated from the deconvoluted peak shape exhibits a bimodal feature. This is attributed to the participation of two different mechanisms for collisional activation, leading to electronic and vibrational excitations, respectively. Copyright © 1990 John Wiley & Sons Limited
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页码:327 / 334
页数:8
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