Negative Ion Postsource Decay Time-of-Flight Mass Spectrometry of Peptides Containing Acidic Amino Acid Residues

1998 ◽  
Vol 70 (24) ◽  
pp. 5122-5128 ◽  
Author(s):  
Jaran Jai-nhuknan ◽  
Carolyn J. Cassady
Keyword(s):  
Mass Spectrometry ◽  
Amino Acid ◽  
Decay Time ◽  
Time Of Flight ◽  
Negative Ion ◽  
Amino Acid Residues ◽  
Acidic Amino Acid ◽  
Postsource Decay ◽  
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.

scholarly journals Determination of the Complete Amino Acid Sequence for the Coat Protein of Brome Mosaic Virus by Time-of-Flight Mass Spectrometry

2001 ◽  
Vol 276 (23) ◽  
pp. 20039-20047 ◽  
Author(s):  
Yi-Min She ◽  
Steve Haber ◽  
Dallas L. Seifers ◽  
Alexander Loboda ◽  
Igor Chernushevich ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Amino Acid ◽  
Coat Protein ◽  
Amino Acid Sequence ◽  
Mosaic Virus ◽  
Time Of Flight ◽  
Brome Mosaic Virus ◽  
Complete Amino Acid Sequence ◽  
Flight Mass Spectrometry
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