Ion-selective field effect transistor (ISFET)-based calcium ion sensor with photocured polyurethane membrane suitable for ionised calcium determination in milk

被引：37

作者：

Bratov, A ^{[1
]}

Abramova, N ^{[1
]}

Domínguez, C ^{[1
]}

Baldi, A ^{[1
]}

机构：

[1] Univ Autonoma Barcelona, Ctr Nacl Microelect, E-08193 Barcelona, Spain

来源：

ANALYTICA CHIMICA ACTA | 2000年 / 408卷 / 1-2期

关键词：

ISFET; photocured polymer membrane; Ca-ion sensor; milk;

D O I：

10.1016/S0003-2670(99)00871-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ca2+-ion-sensitive ISFETs with photocured polyurethane-based polymer membranes with alkylphosphate exchanger (DOPPCa) and three neutral carrier ionophores (ETH 1001, ETH 129 and ETH 5234) and dioctylsebacate as plasticizer have been studied in pure CaCl2 solutions and in background solutions containing Na+, K+, Mg2+ ions in concentrations normally found in milk. In case of DOPPCa and ETH 1001 the influence of Mg2+ ions on the slope of the response curve is reported. ISFETs with membranes containing ETH 129 are shown to have high selectivity, more than 6 weeks life-time in constant contact with a solution and high precision of ionised calcium determination. Experimental results on determination of calcium ions in a whole milk are presented. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：57 / 64

页数：8

共 23 条

[1] A photo-cured coated wire potassium ion-selective electrode for use in flow injection potentiometry [J].

Alexander, PW ;

Dimitrakopoulos, T ;

Hibbert, DB .

ELECTROANALYSIS, 1997, 9 (11) :813-817

[2] Characterization of photopolymerized decyl methacrylate as a membrane matrix for ion-selective electrodes [J].

Ambrose, TM ;

Meyerhoff, ME .

ELECTROANALYSIS, 1996, 8 (12) :1095-1100

[3] CALCIUM-ION ACTIVITIES OF COOLED AND AGED RECONSTITUTED AND RECOMBINED MILKS [J].

AUGUSTIN, MA ;

CLARKE, PT .

JOURNAL OF DAIRY RESEARCH, 1991, 58 (02) :219-229

[4] CHEMFET DEVICES FOR BIOMEDICAL AND ENVIRONMENTAL APPLICATIONS [J].

BARBARO, A ;

COLAPICCHIONI, C ;

DAVINI, E ;

MAZZAMURRO, G ;

PIOTTO, AP ;

PORCELLI, F .

ADVANCED MATERIALS, 1992, 4 (06) :402-408

[5]

BENEDETTO LTD, 1997, TALANTA, V44, P349

[6] Optimization of photocurable polyurethane membrane composition for ammonium ion sensor [J].

Bratov, A ;

Abramova, N ;

Munoz, J ;

Dominguez, C ;

Alegret, S ;

Batroli, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1997, 144 (02) :617-621

[7] PHOTOCURABLE POLYMER MATRICES FOR POTASSIUM-SENSITIVE ION-SELECTIVE ELECTRODE MEMBRANES [J].

BRATOV, A ;

ABRAMOVA, N ;

MUNOZ, J ;

DOMINGUEZ, C ;

ALEGRET, S ;

BARTROLI, J .

ANALYTICAL CHEMISTRY, 1995, 67 (19) :3589-3595

[8] ION-SELECTIVE MICROCHEMICAL SENSORS WITH REDUCED PRECONDITIONING TIME - MEMBRANE BIOSTABILITY STUDIES AND APPLICATIONS IN BLOOD ANALYSIS [J].

COSOFRET, VV ;

ERDOSY, M ;

LINDNER, E ;

JOHNSON, TA ;

BUCK, RP ;

KAO, WJ ;

NEUMAN, MR ;

ANDERSON, JM .

ANALYTICAL LETTERS, 1994, 27 (15) :3039-3063

[9] PRESENT STATE OF FABRICATION OF CHEMICALLY SENSITIVE FIELD-EFFECT TRANSISTORS [J].

DOMANSKY, K ;

JANATA, J ;

JOSOWICZ, M ;

PETELENZ, D .

ANALYST, 1993, 118 (04) :335-340

[10] Photocured polymers in ion-selective electrode membranes .6. Photopolymerized lithium sensitive ion-selective electrodes for flow injection potentiometry [J].

Farrell, JR ;

Iles, PJ ;

Dimitrakopoulos, T .

ANALYTICA CHIMICA ACTA, 1996, 335 (1-2) :111-116

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