Hydrogen peroxide electrode

Immobilized glucose oxidase with a hydrogen peroxide electrode Yellow Springs Instrument Co., USA TO A Electronics Ltd., Japan Fuji Electric Co. Ltd., Japan... [Pg.340]

Shichiri et al(ll) (Osaka University in Japan) has developed the micro needle type glucose sensor, which consisted of a hydrogen peroxide electrode and a GOX enzyme immobilized layer. The sensor was clinically used, but it had to be renewed after a few days because of a gradual decline in its output. [Pg.374]

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]

Cholesterol can be determined by immobilizing the enzyme cholesterol oxidase (COD) in a layer over an oxygen electrode or a hydrogen peroxide electrode. Cholesterol oxidase is chemically immobilized onto nylon net (135, 265) or collagen membranes (267) and fixed onto an O2 electrode ... [Pg.98]

Because electrochemical kinetic data are available only for the hydrogen electrode reaction (HER, H2/H+), the oxygen electrode reaction (OER, O2/H2O), and the hydrogen peroxide electrode reaction (HPER, H2O2/H2O), only H2, O2, and H2O2 are considered as the redox species in the MPM. The redox reactions of interest are therefore written as follows [35] ... [Pg.675]

According to the equation of the reaction, amperometric oxygen or hydrogen peroxide electrodes can be used to follow uric acid conversion. Potentiometric electrodes have seldom been employed because of their slow response (Kawashima and Rechnitz, 1976 Kawashimaetal., 1980). [Pg.150]

A J. Kettle and C.C. Winterbourn, Influence of superoxide on myeloperoxidase kinetics measured with a hydrogen peroxide electrode, Biochem, J, 263 823 (1989). [Pg.285]

Glutamate oxidase/Alanine aminotransferase Hydrogen peroxide electrode... [Pg.5746]

Maltose phosphorylase/acid Hydrogen peroxide electrode with... [Pg.5746]

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]

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

Fig. 4. The response of the anodically polarized platinum mioroelectrode to the addition of 200 iM hydrogen peroxide (electrode polarized at - -0.8 volt) (MC-11).

Chlorine ion Ion electrode Ag/Cl- Diagnosis and cure (commercially available) Oxygen electrode and hydrogen peroxide electrode... [Pg.1134]

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