Peroxide selection

Technical Publication, HAHFLJFE—Peroxide Selection Based on Half-Efe, 2nd ed., and Copyrighted Software, Elf Atochem North America, Inc., Philadelphia, Pa., 1992. 

Technical Publication, HAHFLJFE—Peroxide Selection Based on Half-Efe, 2nd ed., and Copyrighted Software, Elf Atochem North America, Inc., Philadelphia, Pa., 1992 P. A. CaUais, V. R. Kamath, S. E. Stromberg, J. Sanchez, andj. M. GraveUe, Plast. Compound. 15(1), 49—52 (1992). 

Bradley, J.R., Johnson, D.R. and Fober, J.S. (1993). Endothelial activation by hydre en peroxide. Selective increases of intercellular adhesion molecule-1 and major histocompatibility complex class I. Am. J. Pathol. 142, 1598-1609. 

Stirbar stirred vials Catalytic oxidation with hydrogen peroxide selective oxidation of methylcyclohexene6... 

Trimethylamine oxide (6, 624 7, 507) or alkaline hydrogen peroxide selectively oxidizes 2 and 3 at the C B bond to give protected 3-keto aldehydes (6). 

Atochem, Product Bulletin, Half-life Peroxide Selection Based on Half-life, Buffalo, NY (1990). 

Kim, Y., Lee, S.H., and Ho, W.K. 2007. Hydrogen peroxide selectively increases TREK-2 currents via myosin light chain kinases. Front. Biosci. 12 1642-1650. 

Acetylcholineesterase and choline oxidase A Cross-linkable polymer, poly (vinyl pyridine) derivatized at the N atoms with a combination of iron-linking and redox functionalities was used to immobilize the enzymes and to shuttle electrons. Enzymes were deposited with the polymer and deposited onto C electrode. For peroxide selectivity over ascorbate is achieved by incorporation of Nafion. The microsensors if they can be successfully used in vivo will provide valuable information for brain diseases (Parkinsion s and Alzheimer s). [88]... 

Neumann R, Neimann K (2000) Electrophilic activation of hydrogen peroxide selective oxidation reactions in perfluorinated alcohol solvents. Org Lett 2 2861-2863... 

Alkenes are converted to epoxides by oxidation with peroxy acids, and thereby they are protected with regard to certain chemical transformations. Alkaline hydrogen peroxide selectively attacks enone double bonds in the presence of other alkenes. The epoxides can be transformed back to alkenes by reduction-dehydration sequences or using triphenylphosphine, chromous salts, zinc, or sodium iodide and acetic acid. A more advantageous and fairly general method consists, however, of the treatment of epoxides with dimethyl diazomalonate in the presence of catalytic amounts of binuclear rhodium(II) car-boxylate salts. This deoxygenation proceeds under neutral conditions and without isomerization or cy-clopropanation of the liberated alkene (Scheme 97). Furthermore, epoxides can be converted to alkenes with the aid of various metal carbonyl complexes. Thus, they may be nucleophilically opened with... 

An alcohol electrode incorporating AOD immobilized in a hydrogen peroxide-selective sandwich membrane is commercially available from Yellow Springs Instrument Co. (USA). 

The UA-300 analyzer of Fuji Electric (Japan) uses a uricase membrane fixed to a hydrogen peroxide selective layer (Osawa et al., 1981). Only 20 pi of blood serum is required and a sample throughput of 50-60/h at a CV of 3% is achieved. The correlation with the uricase-catalase method is reflected by the following equation ... 

Analytical Methods. Peroxides were determined by iodometric titration. Hydrogen peroxide was determined from the difference between the titers before and after treatment with catalase that decomposes hydrogen peroxide selectively. It was ascertained by separate experiments that hydrogen peroxide could be decomposed quantitatively by catalase over the pH range 2.8-8.0. 

Hydrogen peroxide selectivity should be 80% as against the reported operating selectivity of 70-75%. 

Ammonium molybdatejhydrogen peroxide Selective cleavage of l,3-dithian-2-ylmethyl esters... 

Organic substances. Examples of compounds determined only at CMCPEs and biosensors nitromethane, nitropropane, polynitroaro-mates (see [180] and Figure 11.4c) aliphatic and aromatic peroxides, selected alkaloids (nicotine, caffeine, and brucine), trichloro- and pentachloro phenol. 

Ekind and coworkers pyrimidine-based hyperbranched and aromatic pol3dmides were tested as hydrogen peroxide-selective membrane in the presence of interferents. It was found that the pol3dmide films can be applicable to amperometric sensing of hydrogen peroxide in the presence of the mentioned elecboactive and non-elecboactive interferents[23-24]. 

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