A fragmentation study of two compounds related to 4′-demethylepipodophyllotoxin in negative ion electrospray ionization by MSnion-trap time-of-flight mass spectrometry

2008 ◽  
Vol 22 (3) ◽  
pp. 373-378 ◽  
Author(s):  
Qianrong Li ◽  
Guoquan Yan ◽  
Tiefei Ge
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Time Of Flight ◽  
Negative Ion ◽  
Flight 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.

Top-down N-terminal sequencing of Immunoglobulin subunits with electrospray ionization time of flight mass spectrometry

2009 ◽  
Vol 384 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Da Ren ◽  
Gary D. Pipes ◽  
David Hambly ◽  
Pavel V. Bondarenko ◽  
Michael J. Treuheit ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Time Of Flight ◽  
Top Down ◽  
Ionization Time ◽  
Flight Mass Spectrometry

Analysis of phenolic glycosides from Ilex litseaefolia using electrospray ionization quadrupole time-of-flight mass spectrometry

2009 ◽  
Vol 23 (23) ◽  
pp. 3881-3885 ◽  
Author(s):  
Zhi-Jun Wu ◽  
Xiao-Zhen Chen ◽  
Dong-Mei Fang ◽  
Hua-Yi Qi ◽  
Wei-Jian Ren ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Time Of Flight ◽  
Phenolic Glycosides ◽  
Flight Mass Spectrometry

scholarly journals Metabolic profiling putatively identifies plasma biomarkers of male infertility using UPLC-ESI-IT-TOFMS

RSC Advances ◽  
2018 ◽  
Vol 8 (46) ◽  
pp. 25974-25982 ◽  
Author(s):  
F. J. Zeng ◽  
H. C. Ji ◽  
Z. M. Zhang ◽  
J. K. Luo ◽  
H. M. Lu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Male Infertility ◽  
Electrospray Ionization ◽  
Metabolic Profiling ◽  
Ion Trap ◽  
Time Of Flight ◽  
Ultra Performance Liquid Chromatography ◽  
Flight Mass Spectrometry ◽  
Potential Biomarkers

Ultra-performance liquid chromatography-electrospray ionization-ion trap-time of flight mass spectrometry combined with chemometrics methods was used to discover potential biomarkers of male infertility based on untargeted plasma metabolomics.

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