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Structure characterization and identification of steroidal saponins from the rhizomes of Anemarrhena asphodeloides by ultra performance liquid chromatography and hybrid quadrupole time-of-flight mass spectrometry
- Source :
- International Journal of Mass Spectrometry. :7-17
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- In this work, ultra performance liquid chromatography (UPLC) coupled with a hybrid quadrupole time-of-flight mass spectrometry (Q-TOF MS E ) was used to separate and identify steroidal saponins from the crude extracts of Anemarrhena asphodeloides. The fragmentation patterns of seven known steroidal saponins, which could be classified into six types, were investigated by UPLC/Qtof MS E technique in both negative and positive ion modes. By using this strategy, both intact precursor and fragment ion information were obtained from a single injection. Based on the exact mass, fragment ions, and retention times of peaks, and comparison with reference standards and known compounds in the literature, sixty-seven steroidal saponins were identified or tentatively identified from A. asphodeloides . This included sixteen groups of isomers. Fourteen of these saponins were identified as new compounds. This study provides a good example for the rapid identification of chemical constituents in complex samples such as TCM by UPLC/Qtof MS E , in the mean time, avoiding the time-consuming and tedious purification of compounds from the crude extracts.
- Subjects :
- Chromatography
biology
Chemistry
Single injection
Condensed Matter Physics
Mass spectrometry
biology.organism_classification
High-performance liquid chromatography
Rhizome
Mass
Anemarrhena asphodeloides
Physical and Theoretical Chemistry
Quadrupole time of flight
Instrumentation
Reference standards
Spectroscopy
Subjects
Details
- ISSN :
- 13873806
- Database :
- OpenAIRE
- Journal :
- International Journal of Mass Spectrometry
- Accession number :
- edsair.doi...........58fbc8f42b456c65cef6dfbca80a93fa