Enzymatically modified ion-selective electrodes for flow injection analysis

被引：19

作者：

Koncki, R ^{[1
]}

Walcerz, I ^{[1
]}

Leszczynska, E ^{[1
]}

机构：

[1] Univ Warsaw, Dept Chem, PL-02093 Warsaw, Poland

来源：

JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS | 1999年 / 19卷 / 3-4期

关键词：

flow injection analysis; ion-selective electrodes; enzyme immobilization; urea; penicillins;

D O I：

10.1016/S0731-7085(98)00230-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The application of potentiometric biosensors based on membrane ion-selective electrodes for flow injection analysis (FIA) is presented. The biosensors have been obtained by covalent binding of enzyme molecules directly to surface of ion-selective membranes. The biosensor/FIA systems enable the determination of urea and penicillin in the millimolar ranges of concentration. About 30 samples per hour can be analysed in the performed FIA systems. The operational stability of the bioanalytical systems exceeds 1 month. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：633 / 638

页数：6

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