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Amperometric determination of glucose in undiluted food samples

✍ Scribed by A. Amine; G.J. Patriarche; G. Marrazza; M. Mascini

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
474 KB
Volume
242
Category
Article
ISSN
0003-2670

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✦ Synopsis

Glucose oxidase is immobilized onto a cellulose acetate membrane by glutaraldehyde linkage, and the membrane is used to cover the platinum electrode of a hydrogen peroxide sensor. A silanized polycarbonate membrane then covers the enzyme layer, and extends the linear calibration range to higher concentrations. The sensor, when incorporated into a flow-injection system, allows the determination of glucose at levels up to 1 M in soft drinks at a rate of 60 samples hh' without sample dilution.

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