Novel head for testing and measurement of chemical microsensors

被引：30

作者：

Chudy, M ^{[1
]}

Dybko, A ^{[1
]}

Wróblewski, W ^{[1
]}

Brzózka, Z ^{[1
]}

机构：

[1] Warsaw Univ Technol, Dept Analyt Chem, PL-00664 Warsaw, Poland

来源：

ANALYTICA CHIMICA ACTA | 2001年 / 429卷 / 02期

关键词：

flow systems; chemical sensors; chemically modified field effect transistors (CHEMFETs); potassium selectivity;

D O I：

10.1016/S0003-2670(00)01298-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel head for measurement of chemical sensors was designed and tested. The head was manufactured in the form of a round module allowing simultaneous measurement of 10 sensors. Low cost materials were used for fabrication of a special reference electrode, the head, and plugs connecting the sensors with an electronic amplifier. The hydrodynamic properties of the head such as air bubble distribution, possibility of de-aeration and flow-rate optimisation were investigated. Ks-selective CHEMFETs based on plasticised poly(vinyl chloride) membranes and valinomycine were chosen as model sensors in order to verify the usefulness of the head. The measurements were carried out in a fully computerised flow set-up governed by special software developed under LabView. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：347 / 355

页数：9

共 15 条

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