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Electrospray Ionization Quadrupole Time-of-flight Tandem Mass Spectrometry of Iridoid Glucosides in Positive Ion Mode
Li Cun-Man1; Liang Xin-Miao2; Xue Xing-Ya2
关键词Iridoid Glucoside Mass Spectral Fragmentation Behavior Electrospray Ionization Positive Ion Mode
刊名CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2013-03-10
DOI10.7503/cjcu20120570
34期:3页:567-572
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]COLLISION-INDUCED DISSOCIATION ; METAL CATIONIZATION ; MULTISTAGE ; DIFFUSA
英文摘要The mass spectral fragmentation behaviors of iridoid glucosides(IGs) was studied via electrospray ionization(ESI) quadrupole time-of-flight tandem mass spectrometry (Q-TOF MS/MS) in the positive ion mode. The homogeneous IGs, such as 7,8-cyclopentene-type and cyclopentane-type IGs, the main and typical losses of these classes of compounds are the H2O, CO2, CH3OH, CH3COOH and a glucosidic unit, which indicate the presence of OH, COOH, COOCH3, CH3COO and glucosidic groups on the aglycone moiety. The common fragment ion [Glc+Na](+) (m/z 185. 0) was detected, due to the existence of glucosidic unit. In addition, the cleavages of the dihydro-pyranoid ring were observed in the different sub-classes, but no cleavages were observed in other parts of the aglycone moieties and glucosidic units. The mass spectral fragmentation patterns of IGs in positive ion mode were less characteristic than those in negative ion mode, and the ion intensities were also weaker than those in negative ion mode.
语种英语
WOS记录号WOS:000317085500015
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/137715
专题中国科学院大连化学物理研究所
作者单位1.Hebei Univ Sci & Technol, Hebei Res Ctr Anal & Testing, Shijiazhuang 050018, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Li Cun-Man,Liang Xin-Miao,Xue Xing-Ya. Electrospray Ionization Quadrupole Time-of-flight Tandem Mass Spectrometry of Iridoid Glucosides in Positive Ion Mode[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2013,34(3):567-572.
APA Li Cun-Man,Liang Xin-Miao,&Xue Xing-Ya.(2013).Electrospray Ionization Quadrupole Time-of-flight Tandem Mass Spectrometry of Iridoid Glucosides in Positive Ion Mode.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,34(3),567-572.
MLA Li Cun-Man,et al."Electrospray Ionization Quadrupole Time-of-flight Tandem Mass Spectrometry of Iridoid Glucosides in Positive Ion Mode".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 34.3(2013):567-572.
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