id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_faumgptlo5hzpffa7vedzdjwfm	Fangwei Liu	Mechanistic and Kinetic Study of Singlet O2 Oxidation of Methionine by On-Line Electrospray Ionization Mass Spectrometry	2015	14	.pdf	application/pdf	11845	1533	70	reactions in solution using on-line ESI mass spectrometry and spectroscopy measurements. methionine oxidation intermediates and products at different pH, and measured reaction rate constants. Keywords: On-line ESI mass spectrometry, In-spray solution mixing, Reaction kinetics, Methionine, Singlet investigating the resemblance and evolution of reaction pathways and products from the gas phase to aqueous continuum. continuously pumped in order to replace quenched O2 in solution with fresh 1O2; consequently, ESI MS has to sample solution from a low-pressure reaction system. reaction kinetics between Met and 1O2 in different pH solutions. (a) Product mass spectra for Met oxidation in pH 10.4 solution at different reaction times; and (b) plot of deprotonated counterpart, we may propose two steps for oxidation of neutral Met. Their reaction enthalpies were calculated oxidation of [Met + H]+ follows the same reaction mechanism Similar to gas-phase reactions, the first step of Met oxidation in solution is formation of persulfoxide.	./cache/work_faumgptlo5hzpffa7vedzdjwfm.pdf	./txt/work_faumgptlo5hzpffa7vedzdjwfm.txt