Mechanisms of catalpol and jasminoidin by electrospray ionization mass spectrometry
- VernacularTitle:栀子苷和梓醇的电喷雾质谱裂解机制研究
- Author:
Jianqiu LU
;
Mingqian SUN
;
Honggui ZHANG
- Publication Type:Journal Article
- Keywords:
jasminoidin;
catalpol;
HPLC-ESI-Msn;
fragmentation pathways
- From:
Chinese Traditional and Herbal Drugs
1994;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the collision-induced dissociation fragmentation pathways of the jasminoidin and catalpol in ESI-Msn. Methods The samples were studied by using high performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-ESI-Msn) both in positive and negative. Results The collision-induced dissociation fragmentation pathways of both compounds were described. In the spectrum of two compounds, the loss of glucose residue and whole glucose were observed in positive mode, while only the loss of glucose residue could be observed in negative mode. Furthermore, we found that as the effect of the substituting groups, the fragment ions of jasminoidin were more in positive mode and those of catalpol were more in negative mode. Conclusion Conclusion The established method could be used for the sensitive and rapid identification of this kind of iridoid glycosides。
