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Identification of new trace triterpenoid saponins from the roots of Panax notoginseng by high‐performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry by Yuanyan Liu; Jianbei Li; Jiuming He; Zeper Abliz; Jing Qu; Shishan Yu; Shuanggang Ma; Jing Liu; Dan Du is a Chemistry article available to read on EtoBox.
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## Abstract Triterpenoid saponins are the major bioactive constituents of __Panax notoginseng__. In the study reported here, the fragmentation behavior of triterpenoid saponins from __P__. __notoginseng__ was investigated by electrospray ionization tandem mass spectrometry (ESI‐MS^n^)and high‐performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (HPLC/ESI‐MS^n^). Analyses revealed that product ions from glycosidic and cross‐ring cleavages can give a wealth of structural information regarding the nature of the aglycone, sugar types, the sequence and linkage information of sugar units. It is noted that different glycosylation positions remarkably influenced the fragmentation behaviors, which could assist in the differentiation of saponin analogues. To rationalize this characteristic, the collision energy required for various glycosidic cleavages was investigated. According to the summarized fragmentation rules, identification of triterpenoid saponins from the roots of __P__. __notoginseng__ could be fulfilled, even when reference standards were unavailable. Furthermore, minor and trace constituents were enriched and detected by eliminating th
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- Author
- Yuanyan Liu; Jianbei Li; Jiuming He; Zeper Abliz; Jing Qu; Shishan Yu; Shuanggang Ma; Jing Liu; Dan Du
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0951-4198)
- Published
- 2009
- Language
- EN
- Field
- Chemistry (Physical Sciences)