One-Step Peptide Backbone Dissociations in Negative-Ion Free Radical Initiated Peptide Sequencing Mass Spectrometry

2013 ◽  
Vol 85 (15) ◽  
pp. 7044-7051 ◽  
Author(s):  
Jihye Lee ◽  
Hyeyeon Park ◽  
Hyuksu Kwon ◽  
Gyemin Kwon ◽  
Aeran Jeon ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Free Radical ◽  
Peptide Sequencing ◽  
Negative Ion ◽  
Peptide Backbone ◽  
One Step

scholarly journals Free Radical Initiated Peptide Sequencing for Direct Site Localization of Sulfation and Phosphorylation with Negative Ion Mode Mass Spectrometry

2018 ◽  
Vol 90 (16) ◽  
pp. 9682-9686 ◽  
Author(s):  
Nicholas B. Borotto ◽  
Kevin M. Ileka ◽  
Christina A. T. M. B. Tom ◽  
Brent R. Martin ◽  
Kristina Håkansson
Keyword(s):  
Mass Spectrometry ◽  
Free Radical ◽  
Peptide Sequencing ◽  
Negative Ion ◽  
Site Localization ◽  
Negative Ion Mode

Bromine isotopic signature facilitatesde novosequencing of peptides in free-radical-initiated peptide sequencing (FRIPS) mass spectrometry

2015 ◽  
Vol 50 (2) ◽  
pp. 378-387 ◽  
Author(s):  
Jungjoo Nam ◽  
Hyuksu Kwon ◽  
Inae Jang ◽  
Aeran Jeon ◽  
Jingyu Moon ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Free Radical ◽  
Peptide Sequencing ◽  
Isotopic Signature

Disulfide bond cleavage in TEMPO-free radical initiated peptide sequencing mass spectrometry

2011 ◽  
Vol 46 (8) ◽  
pp. 830-839 ◽  
Author(s):  
Minhee Lee ◽  
Younjin Lee ◽  
Minhyuk Kang ◽  
Hyeyeon Park ◽  
Yeonmi Seong ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Free Radical ◽  
Disulfide Bond ◽  
Bond Cleavage ◽  
Peptide Sequencing

Confounding contaminants in mass spectrometric reaction monitoring

2018 ◽  
Author(s):  
Gilian T. Thomas ◽  
Landon MacGillivray ◽  
Natalie L. Dean ◽  
Rhonda L. Stoddard ◽  
Lars Yunker ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Mass Spectrometric ◽  
Negative Ion ◽  
Reaction Monitoring ◽  
Schlenk Flask ◽  
Dynamic Analyses ◽  
Rubber Septa ◽  
Negative Ion Mode ◽  
Mode A

<p>Reactions carried out in the presence of rubber septa run the risk of additives being leached out by the solvent. Normally, such species are present at low enough levels that they do not interfere with the reaction significantly. However, when studying reactions using sensitive methods such as mass spectrometry, the appearance of even trace amounts of material can confuse dynamic analyses of reactions. A wide variety of additives are present in rubber along with the polymer: antioxidants, dyes, detergent, and vulcanization agents, and these are all especially problematic in negative ion mode. A redesigned Schlenk flask for pressurized sample infusion (PSI) is presented as a means of practically eliminating the presence of contaminants during reaction analyses.</p>

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