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学科主题: 分析化学
题名: Effect of damping mechanisms on mass calibration equation for MALDI/FTMS
其他题名: 碰撞衰减机理对MALDI/FTMS准确质量校正的影响
作者: Su Y(苏越) ; Wang HY(王昊阳) ; Guo YL(郭寅龙) ; Xiang BR(相秉仁) ; An DK(安登魁)
通讯作者: 郭寅龙
刊名: Chin. J. Chem.
发表日期: 2005
卷: 23, 期:8, 页:1053-1059
收录类别: SCI
部门归属: 上海有机所; 中国药科大学
英文摘要: Collisional damping affects the relationship between ion mass and effective cyclotron frequency in Fourier transform mass spectrometry. The exact mass calibration equation [GRAPHICS] was therefore derived from the characteristic equation of system model, force = m dv/dt=qE - qvx B-0-xi v (xi v, a frictional damping force), in which k is amended by the shift of observed frequency of matrix ion or other known ion in external calibration. The mass obtained by the amended calibration equation is therefore immune to collisional damping and space-charge effects on mass accuracy. The relative errors of ion mass measured were all less than 2 x 10(-6).
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000232194400021
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/19880
Appears in Collections:分析化学研究室_期刊论文

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Recommended Citation:
Su Y,Wang HY,Guo YL,et al. Effect of damping mechanisms on mass calibration equation for MALDI/FTMS[J]. Chin. J. Chem.,2005,23(8):1053-1059.
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