DESIGN AND PROPERTIES OF A FLOW-INJECTION ANALYSIS CELL USING POTASSIUM-SELECTIVE ION-SENSITIVE FIELD-EFFECT TRANSISTORS AS DETECTION ELEMENTS

被引：27

作者：

VANDERWAL, PD

SUDHOLTER, EJR

REINHOUDT, DN

机构：

[1] Laboratory of Organic Chemistry, University of Twente, 7500 AE Enschede

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 245卷 / 02期

关键词：

FLOW SYSTEM; VOLTAMMETRY; ION-SENSITIVE FIELD-EFFECT TRANSISTORS; POTASSIUM; SERUM; URINE;

D O I：

10.1016/S0003-2670(00)80216-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The combination of flow-injection analysis (FIA) and chemically modified ion-sensitive field-effect transistors (CHEMFETs) is described. In a wall-jet cell, two identical potassium-selective CHEMFETs were used for a differential measurement using a platinum (pseudo-)reference electrode. Silicone-rubber membrane materials, chemically bound to the SiO2 gate oxide, were used with valinomycin as the ionophore. The optimized FIA system showed a linear response of 56 mV per decade for potassium concentrations above 5 x 10(-5) M. Preliminary results of potassium determinations in human serum and urine samples are presented.

引用

页码：159 / 166

页数：8

共 22 条

[11] MOODY GJ, 1986, ANAL P, V23, P287
[12] POTASSIUM ION-SENSITIVE FIELD-EFFECT TRANSISTOR
MOSS, SD
JANATA, J
JOHNSON, CC
[J]. ANALYTICAL CHEMISTRY, 1975, 47 (13) : 2238 - 2243
[13] IONIC DETECTION USING DIFFERENTIAL MEASUREMENT BETWEEN AN ION-SENSITIVE FET AND A REFERENCE FET
PERROT, H
JAFFREZICRENAULT, N
DEROOIJ, NF
VANDENVLEKKERT, HH
[J]. SENSORS AND ACTUATORS, 1989, 20 (03): : 293 - 299
[14] MINIATURIZATION IN ANALYTICAL-CHEMISTRY - A COMBINATION OF FLOW-INJECTION ANALYSIS AND ION-SENSITIVE FIELD-EFFECT TRANSISTORS FOR DETERMINATION OF PH, AND POTASSIUM AND CALCIUM-IONS
RAMSING, AU
JANATA, J
RUZICKA, J
LEVY, M
[J]. ANALYTICA CHIMICA ACTA, 1980, 118 (01) : 45 - 52
[15] FLOW INJECTION ANALYSES .1. NEW CONCEPT OF FAST CONTINUOUS-FLOW ANALYSIS
RUZICKA, J
HANSEN, EH
[J]. ANALYTICA CHIMICA ACTA, 1975, 78 (01) : 145 - 157
[16] A FLOW-THROUGH CELL FOR USE WITH AN ENZYME-MODIFIED FIELD-EFFECT TRANSISTOR WITHOUT POLYMERIC ENCAPSULATION AND WIRE BONDING
SHIONO, S
HANAZATO, Y
NAKAKO, M
MAEDA, M
[J]. ANALYTICA CHIMICA ACTA, 1987, 202 : 131 - 140
[17] REFERENCE FIELD-EFFECT TRANSISTORS BASED ON CHEMICALLY MODIFIED ISFETS
SKOWRONSKAPTASINSKA, M
VANDERWAL, PD
VANDENBERG, A
BERGVELD, P
SUDHOLTER, EJR
REINHOUDT, DN
[J]. ANALYTICA CHIMICA ACTA, 1990, 230 (01) : 67 - 73
[18] MODIFICATION OF ISFETS BY COVALENT ANCHORING OF POLY(HYDROXYETHYL METHACRYLATE) HYDROGEL - INTRODUCTION OF A THERMODYNAMICALLY DEFINED SEMICONDUCTOR-SENSING MEMBRANE INTERFACE
SUDHOLTER, EJR
VANDERWAL, PD
SKOWRONSKAPTASINSKA, M
VANDENBERG, A
BERGVELD, P
REINHOUDT, DN
[J]. ANALYTICA CHIMICA ACTA, 1990, 230 (01) : 59 - 65
[19] SOLVENT POLYMERIC MEMBRANES COMBINED WITH CHEMICAL SOLID-STATE SENSORS
VANDENVLEKKERT, H
FRANCIS, C
GRISEL, A
DEROOIJ, N
[J]. ANALYST, 1988, 113 (07) : 1029 - 1033
[20] NEW MEMBRANE MATERIALS FOR POTASSIUM-SELECTIVE ION-SENSITIVE FIELD-EFFECT TRANSISTORS
VANDERWAL, PD
SKOWRONSKAPTASINSKA, M
VANDENBERG, A
BERGVELD, P
SUDHOLTER, EJR
REINHOUDT, DN
[J]. ANALYTICA CHIMICA ACTA, 1990, 231 (01) : 41 - 52

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