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Results for “OXIDASE AND PEROXIDASE”

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Determination of blood glucose using an oxidase-peroxidase system with a non-carcinogenic chromogen.

Manual and automated methods for the determination of blood glucose have been devised using an oxidase/peroxidase system, with dl adrenaline, a non-carcinogen, as oxygen acceptor. The manual technique employs a stable single solution protein precipitant and the other reagents used are also stable. The automated methods are operated at 40/hr sample speed and washover between samples, over a very wide concentration range, is negligible.

Adrenochrome↗

On the use of a sensitive indicator reaction for the automated glucose oxidase-peroxidase coupled reaction.

A study into the substitution of sodium 2-hydroxy-3,5-dichlorobenzenesulfonate for phenol in the indicator reaction for an automated glucose procedure is presented. Apart from having physical properties that are more conducive to easy handling than phenol, the former material affords considerably more sensitivity than does the latter. Results obtained with either of these glucose oxidase-coupled systems demonstrate good correlation not only with each other but also with the glucose oxidase procedure of the Beckman Astra 8.

Autoanalysis↗

Interference by acetaminophen in the glucose oxidase-peroxidase method for blood glucose determination.

Acetaminophen, p-aminophenol, and oxyphenbutazone interfere with the glucose oxidase/peroxidase method for glucose. Structurally related compounds that lack a free phenolic hydroxyl group (acetanilide, aniline, and phenylbutazone) do not interfere. During the analytical procedure acetaminophen is consumed. One mole of acetaminophen leads to an apparent loss of four moles of glucose. The hexokinase/glucose-6-phosphate dehydrogenase method (Boehringer Hexokinase method) is not affected by these substances.

Acetaminophen↗