Hydrogen peroxide electrodes based

Hydrogen Peroxide Electrodes Based on Electrical Connection of Redox Centers... [Pg.180]

The electrolytic processes for commercial production of hydrogen peroxide are based on (/) the oxidation of sulfuric acid or sulfates to peroxydisulfuric acid [13445-49-3] (peroxydisulfates) with the formation of hydrogen and (2) the double hydrolysis of the peroxydisulfuric acid (peroxydisulfates) to Caro s acid and then hydrogen peroxide. To avoid electrolysis of water, smooth platinum electrodes are used because of the high oxygen overvoltage. The overall reaction is... [Pg.477]

C.H. Lei and J.Q. Deng, Hydrogen peroxide sensor based on coimmobilized methylene green and horseradish peroxidase in the same montonorillonite-modified bovine serum albumin-glutaraldehyde matrix on a glassy carbon electrode surface. Anal. Chem. 68, 3344—3349 (1996). [Pg.595]

Q.L. Wang, G.X. Lu, and B.J. Yang, Hydrogen peroxide biosensor based on direct electrochemistry of haemoglobin immobilized on carbon paste electrode by a silica sol-gel film. Sens. Actuators, B Chem. 99, 50-57 (2004). [Pg.601]

Y. Xiao, H.X. Ju, and H.Y. Chen, Hydrogen peroxide sensor based on horseradish peroxidase-labeled Au colloids immobilized on gold electrode surface by cysteamine monolayer. Anal. Chim. Acta. 391,... [Pg.601]

J.D. Zhang and M. Oyama, A hydrogen peroxide sensor based on the peroxidase activity of haemoglobin immobilized on gold nanoparticles-modified ITO electrode. Electrochim. Acta 50, 85-90 (2004). [Pg.603]

Wang, L., et al., A novel hydrogen peroxide sensor based on Ag nanoparticles etectrodeposited on chitosan-graphene oxide/cysteamine-modified gold electrode. Journal of Solid State Electrochemistry, 2012.16(4) p. 1693-1700. [Pg.163]

In general, the commercially available biosensors in the food industry are based on a very similar technology, either an oxygen electrode or a hydrogen peroxide electrode in conjunction with an immobilised oxidase. They are available in several forms, such as autoanalysers, manual laboratory instruments and portable devices. Nevertheless,... [Pg.288]

Yang W, Li Y, Bai Y, Sun C (2006) Hydrogen peroxide biosensor based on myoglobin/ colloidal gold nanoparticles immobilized on glassy carbon electrode by a Nafion film. Sens Actuators B 115 42—48... [Pg.152]

Hai-Li Zhang, Guo-Song Lai, Han De-Yan, Yu Ai-Min (2008) An amperometric hydrogen peroxide biosensor based on horseradish peroxidase on an electrode modified with magnetic dextran microspheres. Anal Bioanal Chem 390 971-977... [Pg.413]

Karyakin and Karyakina have developed a hydrogen peroxide sensor, based on Prussian Blue deposited on glassy carbon electrodes. Prussian Blue was considered an artificial peroxidase due to its high catalytic activity and selectivity, which could be compared with biocatalysis. The application of Prussian Blue modified electrodes enabled the sensing of H2O2 at around 0 V vs. SCE. The electrocatalytic reduction of H2O2 in the presence of O2 was found to be better for Prussian Blue deposited on glassy carbon electrodes than for platinum covered electrodes. Furthermore, these electrodes were more stable and active and less expensive than the platinum and peroxidase modified electrodes. The response was linear up to 0.1-100 pM and the detection limit found to be 10 M. [Pg.185]

T. Zhang, R. Yuan, Y. Chai, W. Li, and S. Ling, A novel nonenz3fmatic hydrogen peroxide sensor based on a polypyrrole nanowire-copper nanocomposite modified gold electrode, Sensors, 8, 5141-5152 (2008). [Pg.340]

Lei CX, Hu SQ, Gao N, Shen GL, Yu RQ (2004) An amperometric hydrogen peroxide biosensor based on immobilizing horseradish peroxidase to a nano-Au monolayer supported by sol-gel derived carbon ceramic electrode. [Pg.233]

The choline electrode usually consists of an amperometric transducer and immobilized choline oxidase. The most frequently used electrochemical transducers are hydrogen peroxide electrodes (26-28,33-36). The amperometric signal in this case is due to electrooxidation of hydrogen peroxide, which is the co-product of the enzymatic choline oxidation (equation 2). Oxygen amperometric sensors (Qark-type electrodes) have been also used as basic transducers for choline electrode construction (29, 32, 37). The signal in this case is based on the reduction of molecular oxygen which is the co-reactant in reaction (equation 2). Redox mediators hexacyanoferrate (26), ferrocene derivatives (38) and tetracyanoquinodimethane (39) have also been used in the construction of choline electrodes. [Pg.127]

Chairam, S., Buddhalee, R, Amatatongchai, M. A novel hydrogen peroxide biosensor based on horseradish peroxidase immobilized on poly(aniline-co-o-aminobenzoic acid) modified glassy carbon electrode coated with chitosan film. Int. J. Electrochem. Sci. 8(8), 10250-10264 (2013)... [Pg.535]

Yin, G. Xing, L. Ma, X.-J. Wan, J. Non-enzymatic hydrogen peroxide sensor based on a nanoporous gold electrode modified with platinum nanoparticles. Chem Paper 2013,68, 1-7. [Pg.438]

Liu, S.-Q. and H.-X. Ju. 2002. Renewable reagentless hydrogen peroxide sensor based on direct electron transfer of horseradish peroxidase immobilized on colloidal gold-modified electrode. Anal. Biochem. 307 110-116. [Pg.504]

Wang, L. and E. Wang. 2004. A novel hydrogen peroxide sensor based on horseradish peroxidase immobilized on colloidal An modified ITO electrode. Electrochem. Commun. 6 225-229. [Pg.505]

Hayat A, Marty J-L, Radi A-E (2012) Novel amperometric hydrogen peroxide biosensor based on horseradish peroxidase azide covalently immbilized on ethynyl-modified screen-printed carbon electrode via click chemistry. Electroanalysis 24(6) 1446-1452... [Pg.565]

Fig. 5. Detection methods for glucose enzyme electrode based on (a) oxygen, (b) hydrogen peroxide, and (c) a mediator. See text.

Armstrong FA, Bond AM, Buchi FN, Hanmett A, Hill HAO, Lannon AM, Lettington OC, Zoski CG. 1993. Electrocatalytic reduction of hydrogen-peroxide at a stationary pyrol3ftic-graphite electrode surface in the presence of cytochrome-c peroxidase— A description based on a microelectrode array model for adsorbed enzyme molecules. Analyst 118 973-978. [Pg.630]

Cardosi MR 1994. Hydrogen peroxide-sensitive electrode based on horseradish peroxidase-modified platinized carbon. Electroanalysis 6 89-96. [Pg.630]