Pressure limited sustained off-resonance irradiation for collision-activated dissociation in Fourier transform mass spectrometry

被引:10
作者
Gorshkov, MV [1 ]
Pasa-Tolic, L [1 ]
Smith, RD [1 ]
机构
[1] Pacific NW Lab, Environm Mol Sci Lab, Richland, WA 99352 USA
关键词
D O I
10.1016/S1044-0305(98)00119-6
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A theoretical evaluation of the sustained off-resonance irradiation of ions (SORI) in the presence of a collisional buffer gas in a Fourier transform ion cyclotron resonance mass spectrometer is presented. It is shown that there is an optimal pressure for a given set of irradiation parameters corresponding to the most effective dissociation. Theoretical predictions are compared with experimental results for the dissociation of electrosprayed biopolymer ions and with previously accepted view of the SORT process. (J Am Soc Mass Spectrom 1999, 10, 15-18) (C) 1999 American Society for Mass Spectrometry.
引用
收藏
页码:15 / 18
页数:4
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