منابع مشابه
Free-radical chemistry of sulfite.
The free-radical chemistry of sulfite oxidation is reviewed. Chemical transformations of organic and biological molecules induced by sulfite oxidation are summarized. The kinetics of the free-radical oxidations of sulfite are discussed, as are the kinetics of the reactions of the sulfite-derived radicals SO3 and the peroxy derivative SO5 with organic compounds.
متن کامل(Bi)sulfite Oxidation by Copper,Zinc-Superoxide Dismutase: Sulfite-Derived, Radical-Initiated Protein Radical Formation
BACKGROUND Sulfur dioxide, formed during the combustion of fossil fuels, is a major air pollutant near large cities. Its two ionized forms in aqueous solution, sulfite and (bi)sulfite, are widely used as preservatives and antioxidants to prevent food and beverage spoilage. (Bi)sulfite can be oxidized by peroxidases to form the very reactive sulfur trioxide anion radical (*SO(3)-). This free rad...
متن کاملSynthesis of Polyvinyltetrazole by Combination of Free Radical Polymerization and Click Chemistry for Adsorption of Pb (II) in Aqueous Solution
Polyvinyltetrazole (PVT) is produced from acrylonitrile (AN) monomer by using free-radicalpolymerization and Click Chemistry methods. The resulting polymer with a broad range of tetrazolegroup contents was conveniently synthesized through [3+ 2] azide-nitrile cycloaddition reaction ofnitrile-containing polymer with sodium azide in DMF. The prepared PVT was characterized by13CN...
متن کاملMechanisms of free radical chemistry and biochemistry of benzene.
omicron-Tyrosine (omicron-Tyr) was used as a specific biomarker for .OH radicals generated in biosystems. Specificity of omicron-Tyr as an .OH biomarker was based on previous studies in systems exposed to ionizing radiations. Fresh muscle tissue incubated with benzene for 1 hr at 38 degrees C exhibits formation of omicron-Tyr as seen in the cases of ethanol- and carbon tetrachloride-exposed sys...
متن کاملChemistry of free radical and singlet oxidation of lipids.
The reaction of oxygen with unsaturated lipids produces a wide range of compounds that have attracted considerable interest and research. In foods, lipid oxidation products are responsible for the development of rancidity by the production of low molecular weight fission compounds that impart undesirable flavors. Potentially toxic and harmful cyclic and higher molecular weight materials are for...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1985
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.8564209