METAL METAL-OXIDE ENZYME ELECTRODES FOR THE DETERMINATION OF UREA

被引：13

作者：

PRZYBYT, M ^{[1
]}

SUGIER, H ^{[1
]}

机构：

[1] TECH UNIV LODZ, INST GEN FOOD CHEM, UL STEFANOWSKIEGO 4-10, PL-90924 LODZ, POLAND

来源：

ANALYTICA CHIMICA ACTA | 1990年 / 237卷 / 02期

关键词：

Enzyme electrodes; Urea;

D O I：

10.1016/S0003-2670(00)83943-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Enzyme electrodes for urea assay based on metal-metal oxide (Sb, Bi, W, Ti + RuO2) with urease immobilized in gelatin gel were examined. It was shown that the best electrodes were obtained for tungsten. The urea response of the electrodes was influenced by the pH and concentration of the buffer used. Increasing additions of inert salt (potassium chloride) change the pH characteristic of the tungsten electrode and buffer capacity, thus influencing the urea response of the electrode. © 1990.

引用

页码：399 / 404

页数：6

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