INFLUENCE OF PLASTICIZER ON THE SELECTIVITY OF NITRATE-SENSITIVE CHEMFETS

被引：40

作者：

STAUTHAMER, WPRV ^{[1
]}

ENGBERSEN, JFJ ^{[1
]}

VERBOOM, W ^{[1
]}

REINHOUDT, DN ^{[1
]}

机构：

[1] UNIV TWENTE,MESA INST,DEPT ORGAN CHEM,POB 217,7500 AE ENSCHEDE,NETHERLANDS

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1994年 / 17卷 / 03期

关键词：

D O I：

10.1016/0925-4005(93)00870-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

By chemical modification of an ion-sensitive field-effect transistor, a sensor (CHEMFET) has been developed whose sensitivity for nitrate has been tested. A plasticized poly(vinyl chloride) (PVC) membrane, which contains lipophilic tetra-n-octyl-ammonium ions, is responsible for the nitrate sensitivity of the device. This membrane has been attached physically on top of a pH-buffered hydrogel, which itself has been attached covalently to the gate oxide of the field-effect transistor. The influence of the plasticizer in the PVC membrane on the selectivity pattern of the CHEMFET for the detection of nitrate has been investigated.

引用

页码：197 / 201

页数：5

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