The reaction of OH radicals with baicalin was studied by pulse and gamma radiolysis in N2O-saturated aqueous solutions. The addition of an OH radical to baicalin produced an intermediate species that shows a maximum UV absorbance band at 420 nm and decays with a unimolecular rate constant of 1.25 x 10(4) s(-1) and a bimolecular rate constant of 6.1 x 10(8) mol(-1) dm(3) s(-1). Four major final products were obtained by gamma irradiation, and their structures were identified. Two of them (P1 and P2) are suggested to originate from the unimolecular reaction and the other two (P3 and P4) from the bimolecular reaction of the radicals. (C) 1995 by Radiation Research SocietyBiologyBiophysicsRadiology, Nuclear Medicine & Medical ImagingSCI(E)P...
The hydroxyl (OH•) radical plays an important role in the degradation of living tissues induced by i...
Pulse radiolysis of epicatechin in aqueous solution has been done to investigate the reactions of ep...
The formation and disappearance of O in oxygen free aqueous solution at pH 13 has been studied and...
Baicalin(beta-D-Glucopyranosiduronic acid, 5,6-dihydroxy-oxo-2-phenyl-4H-1-benzopyran-7-yl) is a nat...
The reaction of baicalin (beta-D-giucopyranosiduronic acid, 5,6-dihydroxy-oxo-2-phenyl-4H-1-benzopyr...
本工作研究了γ辐解N_2O饱和黄芩苷水溶液的辐解机理,发现四种主要辐解产物(P1,P2,P3,P4).紫外、质谱和核磁共振谱确定了它们的化学结构.其中P1,P2为OH自由基与C环作用失去B环形成的,而...
The rate constants of the reactions of eaq and the OH radical with the oxalate ion in a neutral aq...
The transient optical absorption bands (λmax = 310 nm, 330-350 nm, k = 3.2 ×109 dm3 mol-1 s-1) forme...
Pulse radiolysis has been used to investigate the reaction of hydroxyl radical (·OH) and oxide ...
The reactions of hydroxyl radical (OH) with guanidine, 1, 1-dimethylguanidine, and 1-ethylguanidine ...
Radiation chemical reactions of √ OH, O √ ¯, N3 √ and SO4 √ ¯ with...
The reactions of the oxidizing radicals hydroxyl radical (·OH), azidyl radical(N3•) and s...
The mechanism and kinetics of glycyrrhizic acid monoamonium (GAM) reacting with hydroxyl radical gen...
The radical cation of 2-(phenylthio)ethanol (PTE)+, generated on reaction of specific one-electron o...
The reaction of hydroxyl radical (<sup>•</sup>OH) with the nucleic acid base analogue 2-thiouracil (...
The hydroxyl (OH•) radical plays an important role in the degradation of living tissues induced by i...
Pulse radiolysis of epicatechin in aqueous solution has been done to investigate the reactions of ep...
The formation and disappearance of O in oxygen free aqueous solution at pH 13 has been studied and...
Baicalin(beta-D-Glucopyranosiduronic acid, 5,6-dihydroxy-oxo-2-phenyl-4H-1-benzopyran-7-yl) is a nat...
The reaction of baicalin (beta-D-giucopyranosiduronic acid, 5,6-dihydroxy-oxo-2-phenyl-4H-1-benzopyr...
本工作研究了γ辐解N_2O饱和黄芩苷水溶液的辐解机理,发现四种主要辐解产物(P1,P2,P3,P4).紫外、质谱和核磁共振谱确定了它们的化学结构.其中P1,P2为OH自由基与C环作用失去B环形成的,而...
The rate constants of the reactions of eaq and the OH radical with the oxalate ion in a neutral aq...
The transient optical absorption bands (λmax = 310 nm, 330-350 nm, k = 3.2 ×109 dm3 mol-1 s-1) forme...
Pulse radiolysis has been used to investigate the reaction of hydroxyl radical (·OH) and oxide ...
The reactions of hydroxyl radical (OH) with guanidine, 1, 1-dimethylguanidine, and 1-ethylguanidine ...
Radiation chemical reactions of √ OH, O √ ¯, N3 √ and SO4 √ ¯ with...
The reactions of the oxidizing radicals hydroxyl radical (·OH), azidyl radical(N3•) and s...
The mechanism and kinetics of glycyrrhizic acid monoamonium (GAM) reacting with hydroxyl radical gen...
The radical cation of 2-(phenylthio)ethanol (PTE)+, generated on reaction of specific one-electron o...
The reaction of hydroxyl radical (<sup>•</sup>OH) with the nucleic acid base analogue 2-thiouracil (...
The hydroxyl (OH•) radical plays an important role in the degradation of living tissues induced by i...
Pulse radiolysis of epicatechin in aqueous solution has been done to investigate the reactions of ep...
The formation and disappearance of O in oxygen free aqueous solution at pH 13 has been studied and...