scholarly journals Synthesis, isolation, identification and characterization of new process-related impurity in isoproterenol hydrochloride by HPLC, LC/ESI-MS and NMR

2017 ◽  
Vol 7 (6) ◽  
pp. 394-400 ◽  
Author(s):  
Neeraj Kumar ◽  
Subba Rao Devineni ◽  
Prasad Reddy Gajjala ◽  
Shailendra Kumar Dubey ◽  
Pramod Kumar
Keyword(s):  
Esi Ms ◽  
New Process ◽  
Identification And Characterization ◽  
Isoproterenol Hydrochloride

scholarly journals Proteomic Characterization of Bacteriophage Peptides from the Mastitis Producer Staphylococcus aureus by LC-ESI-MS/MS and the Bacteriophage Phylogenomic Analysis

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 799
Author(s):  
Ana G. Abril ◽  
Mónica Carrera ◽  
Karola Böhme ◽  
Jorge Barros-Velázquez ◽  
Benito Cañas ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Dairy Products ◽  
Phylogenomic Analysis ◽  
Esi Ms ◽  
Complement Inhibitors ◽  
Staphylococcus Spp ◽  
The Relationship ◽  
Phage Proteins ◽  
Identification And Characterization

The present work describes LC-ESI-MS/MS MS (liquid chromatography-electrospray ionization-tandem mass spectrometry) analyses of tryptic digestion peptides from phages that infect mastitis-causing Staphylococcus aureus isolated from dairy products. A total of 1933 nonredundant peptides belonging to 1282 proteins were identified and analyzed. Among them, 79 staphylococcal peptides from phages were confirmed. These peptides belong to proteins such as phage repressors, structural phage proteins, uncharacterized phage proteins and complement inhibitors. Moreover, eighteen of the phage origin peptides found were specific to S. aureus strains. These diagnostic peptides could be useful for the identification and characterization of S. aureus strains that cause mastitis. Furthermore, a study of bacteriophage phylogeny and the relationship among the identified phage peptides and the bacteria they infect was also performed. The results show the specific peptides that are present in closely related phages and the existing links between bacteriophage phylogeny and the respective Staphylococcus spp. infected.

LC-ESI-MS/MS identification and characterization of ponatinib in vivo phase I and phase II metabolites

2018 ◽  
Vol 485 ◽  
pp. 144-151 ◽  
Author(s):  
Mohamed W. Attwa ◽  
Adnan A. Kadi ◽  
Hany W. Darwish ◽  
Sawsan M. Amer ◽  
Haitham AlRabiah
Keyword(s):  
Phase I ◽  
Phase Ii ◽  
Esi Ms ◽  
Phase Ii Metabolites ◽  
Identification And Characterization

Identification and characterization of unknown degradation impurities in beclomethasone dipropionate cream formulation using HPLC, ESI-MS and NMR

2019 ◽  
Vol 167 ◽  
pp. 123-131
Author(s):  
Elumalai Sambandan ◽  
Thenmozhi Kathavarayan ◽  
Senthilkumar Sellappan ◽  
Jentaie Shiea ◽  
Vinoth Kumar Ponnusamy
Keyword(s):  
Beclomethasone Dipropionate ◽  
Esi Ms ◽  
Cream Formulation ◽  
Identification And Characterization
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