CONDUCTIVE EPOXY-GRAPHITE COMPOSITE AS A SOLID INTERNAL REFERENCE IN A NASICON-BASED SODIUM ION-SELECTIVE ELECTRODE FOR FLOW-INJECTION ANALYSIS

被引:13
作者
BARTROLI, J [1 ]
ALERM, L [1 ]
FABRY, P [1 ]
SIEBERT, E [1 ]
机构
[1] ENSEEG,LAB ION & ELECTROCHIM SOLIDES GRENOBLE,F-38402 ST MARTIN DHERES,FRANCE
关键词
ION SELECTIVE ELECTRODES; FLOW INJECTION; NASICON; EPOXY GRAPHITE COMPOSITE;
D O I
10.1016/0003-2670(94)00655-6
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A solid-state conductive polymer composite is proposed as a substitute for the internal liquid reference in a sodium sensor. Epoxy-graphite is used as the composite and NASICON as a sensitive membrane. The absence of a liquid internal solution allows the straightforward construction of these transducers in various shapes and dimensions. This is possible because of the use of an easily moldable plastic support. The conductivity of the epoxy-graphite composite and the electrochemical behaviour of the NASICON/conductive epoxy interface were characterized by impedance spectroscopy. The stability and reproducibility of the electrode potential were studied. Different compositions of the reference system were tested. An all-solid-state, now-through, tubular sodium sensor based on a NASICON membrane has been evaluated. The construction of a miniaturized sensor is described and its application to flow-injection analysis is reported.
引用
收藏
页码:102 / 108
页数:7
相关论文
共 14 条
  • [1] FLOW-INJECTION SYSTEM FOR ONLINE POTENTIOMETRIC MONITORING OF AMMONIA IN FRESH-WATER STREAMS
    ALEGRET, S
    ALONSO, J
    BARTROLI, J
    MARTINEZFABREGAS, E
    [J]. ANALYST, 1989, 114 (11) : 1443 - 1447
  • [2] RESPONSE CHARACTERISTICS OF CONDUCTIVE POLYMER COMPOSITE SUBSTRATE ALL-SOLID-STATE POLY(VINYL CHLORIDE) MATRIX MEMBRANE ION-SELECTIVE ELECTRODES IN AERATED AND NITROGEN-SATURATED SOLUTIONS
    ALEGRET, S
    FLORIDO, A
    [J]. ANALYST, 1991, 116 (05) : 473 - 476
  • [3] SEQUENTIAL FLOW-INJECTION DETERMINATIONS OF CALCIUM AND MAGNESIUM IN WATERS
    ALONSO, J
    BARTROLI, J
    LIMA, JLFC
    MACHADO, AASC
    [J]. ANALYTICA CHIMICA ACTA, 1986, 179 : 503 - 508
  • [4] A NEW DOUBLE-JET CELL FOR FAST ION-SENSITIVE ELECTRODES
    ATTARI, M
    FABRY, P
    MALLIE, H
    QUEZEL, G
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1993, 15 (1-3) : 173 - 178
  • [5] CONSTRUCTION AND DEVELOPMENT OF ION-SELECTIVE ELECTRODES RESPONSIVE TO ANIONIC SURFACTANTS
    BAROROMA, J
    SANCHEZ, J
    DELVALLE, M
    ALONSO, J
    BARTROLI, J
    [J]. SENSORS AND ACTUATORS B-CHEMICAL, 1993, 15 (1-3) : 179 - 183
  • [6] PERFORMANCE-CHARACTERISTICS OF SODIUM SUPER IONIC CONDUCTOR PREPARED BY THE SOL-GEL ROUTE FOR SODIUM-ION SENSORS
    CANEIRO, A
    FABRY, P
    KHIREDDINE, H
    SIEBERT, E
    [J]. ANALYTICAL CHEMISTRY, 1991, 63 (22) : 2550 - 2557
  • [7] AMPEROMETRIC ENZYMATIC GLUCOSE ELECTRODE BASED ON AN EPOXY GRAPHITE COMPOSITE
    CESPEDES, F
    MARTINEZFABREGAS, E
    BARTROLI, J
    ALEGRET, S
    [J]. ANALYTICA CHIMICA ACTA, 1993, 273 (1-2) : 409 - 417
  • [8] ENGELL J, 1984, Patent No. 1829
  • [9] NASICON, AN IONIC CONDUCTOR FOR SOLID-STATE NA+-SELECTIVE ELECTRODE
    FABRY, P
    GROS, JP
    MILLIONBRODAZ, JF
    KLEITZ, M
    [J]. SENSORS AND ACTUATORS, 1988, 15 (01): : 33 - 49
  • [10] POLYMER ELECTROLYTE AS INTERNAL IONIC BRIDGE FOR ION SOLID-STATE SENSORS
    FABRY, P
    MONTEROOCAMPO, C
    ARMAND, M
    [J]. SENSORS AND ACTUATORS, 1988, 15 (01): : 1 - 9