AMPEROMETRIC DETERMINATION OF GLUCOSE IN UNDILUTED FOOD SAMPLES

被引:38
作者
AMINE, A [1 ]
PATRIARCHE, GJ [1 ]
MARRAZZA, G [1 ]
MASCINI, M [1 ]
机构
[1] DIPARTIMENTO SANITA PUBBL EPIDEMIOL & CHIM ANAL AMBIENTALE,SEZIONE CHIM ANAL,I-50121 FLORENCE,ITALY
关键词
AMPEROMETRY; FLOW SYSTEM; GLUCOSE; FOODS; SOFT DRINKS; ENZYME ELECTRODES;
D O I
10.1016/0003-2670(91)87051-8
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
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 h-1 without sample dilution.
引用
收藏
页码:91 / 98
页数:8
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