Oxidation products residual oxygen

In another study (Watwood, White Dahm, 1991), benzene mineralization occurred in soils incubated under an inert gas for 4 weeks. No attempt was made to remove residual oxygen from these soils and the possibility exists that benzene mineralization may have been linked to the consumption of oxygen. Alternately, it may have been that benzene was partially oxidized by microorganisms and the resulting product was amenable to anaerobic decay. An earlier study (Van Beelen Van Keulen, 1990) showed an extremely rapid rate of benzene mineralization 2% mineralized in 1 h and 5% in 7 days. No samples were taken between 1 and 7 days and further benzene mineralization was not observed. 

All amino-acid residues of proteins are potential targets for attack by reactive oxygen species (ROS) produced in the radiolysis of water however, in only a few cases have the oxidation products been fully characterized. Moreover, under most physiological conditions, cysteine, methionine, arginine, lysine, proline, histidine, and the aromatic amino acids are primary targets for ROS-mediated oxidation. 

ScC02 can serve as a particularly attractive mobile phase for organic reactions for several reasons [1] (1) it has a good solvent power for gas molecules (e.g., oxidation reaction involving oxygen), (2) its fluid properties simplify mass transport and separation from the product (no residues), and (3) as an inert gas, its... 

Decomposition is suggested [63] to involve the formation of Mn " ions at the salt-oxide interface and subsequent bond redistributions to involve electron transfer steps, resembling those in solution, thereby regenerating active Mn " ions at the interface. In the absence of oxygen, the carbon monoxide evolved reduces the oxide product to a finely divided and very reactive form of MnO. Decomposition is more rapid when oxygen gas is present, due to increased availability of the intermediate Mn at the nucleus surface and this species is abundant in the residual oxide phase. 

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