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学科主题: 分析化学
题名: Application of Tandem Mass Spectra for the Peaks of Isotope Pattern in the Elemental Composition Assignment of Product Ions
其他题名: 应用串联图谱中同位素峰分析离子的元素组成
作者: Leng JP(冷嘉鹏) ; Wang HY(王昊阳) ; Zhang L(张立) ; Zhang J(张菁) ; Guo YL(郭寅龙)
通讯作者: 郭寅龙
刊名: Chin. J. Chem.
发表日期: 2010
卷: 28, 期:9, 页:1751-1756
收录类别: SCI
部门归属: 中国科学院上海有机化学研究所
英文摘要: For an ion of known formula, there are some ambiguous formulas with respect to its product ions in tandem mass spectrometry in many cases. Researchers determined them mainly by high resolution mass spectrometer combing database searching. Here, we presented an innovative method to enhance the assignment possibility of the elemental composition of the product ion by exploiting the tandem mass spectra of isotopic peaks from the precursor ion such as [M+H+1](1), [M+H+2](1) and [M+H+3](1). This approach involved a process of excluding low match formulas for product ion stepwise until the final formula with the highest match. It also facilitated the deduction of the fragmentation pathway for the precursor ion in tandem mass spectrometry. The isotopic proportions of product ions possessed a good repeatability. Additionally, this method could be performed fast and conveniently on variety of instruments, which offers an alternative determination tool for the elemental composition of product ion in tandem mass spectrometry.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000282998700038
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/20004
Appears in Collections:分析化学研究室_期刊论文

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Recommended Citation:
Leng JP,Wang HY,Zhang L,et al. Application of Tandem Mass Spectra for the Peaks of Isotope Pattern in the Elemental Composition Assignment of Product Ions[J]. Chin. J. Chem.,2010,28(9):1751-1756.
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