The use of isoprene as a novel dopant in negative ion atmospheric pressure photoionization mass spectrometry coupled to high-performance liquid chromatography

2015 ◽  
Vol 29 (11) ◽  
pp. 1031-1038 ◽  
Author(s):  
Faezeh Dousty ◽  
Rob O'Brien
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Atmospheric Pressure ◽  
High Performance ◽  
Negative Ion ◽  
Atmospheric Pressure Photoionization ◽  
Photoionization Mass Spectrometry

Chemical profiling of Dioscorea septemloba by High Performance Liquid Chromatography Coupled to Electrospray Ionization and Quadrupole Time-of-Flight Mass Spectrometry

2020 ◽  
Vol 58 (8) ◽  
pp. 709-717
Author(s):  
Yun Ling ◽  
Lu Chen ◽  
Dan Wang ◽  
Xin Xiao ◽  
Wenjing Xu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Electrospray Ionization ◽  
High Performance ◽  
Time Of Flight ◽  
Negative Ion ◽  
Chemical Compositions ◽  
Flight Mass Spectrometry ◽  
Promising Source

Abstract The rhizomes of Dioscorea septemloba (DS) is one of traditional Chinese medicine, which can be used for treatments of urethral and renal infections, as well as rheumatism. Nevertheless, detailed information on DS chemical compositions is still scarce. Therefore, the present work is aimed at investigating the phytochemical components of DS using high performance liquid chromatography coupled to electrospray ionization and quadrupole time-of-flight mass spectrometry in negative ion mode. The proposed method provided tentative identification of 32 components, 6 of which were determined to be new. The present study highlighted the importance of DS as a promising source of medicinal ingredients and provides valuable information on the new potential components in DS.

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