Novel Solid-Contact Ion-Selective Microelectrodes for Localized Potentiometric Measurements

被引：33

作者：

Lamaka, Svetlana V. ^{[1
]}

Taryba, Maryna G. ^{[1
]}

Zheludkevich, Mikhail L. ^{[2
]}

Ferreira, Mario G. S. ^{[1
,2
]}

机构：

[1] Univ Tecn Lisboa, Inst Super Tecn, ICEMS, P-1049001 Lisbon, Portugal

[2] Univ Aveiro, CICECO, Dep Ceram & Glass Eng, P-3810193 Aveiro, Portugal

来源：

ELECTROANALYSIS | 2009年 / 21卷 / 22期

关键词：

Solid contact; pH-selective microelectrode; Mg-selective microelectrode; SIET; Response time; Ionophores; Sensors; SCANNING ELECTROCHEMICAL MICROSCOPY; RESPONSE-TIME; MEMBRANE; ELECTRODE; FLUXES;

D O I：

10.1002/elan.200900258

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The design and properties of novel type of solid-contact ionophore-based ion-selective microelectrodes are reported. The microelectrode is based on an insulated needle-shaped metallic wire with an exposed apex. The ion-to-electron transducer is made of poly(3-octylthiophene-2,5-diyl) and placed between an ion-selective membrane and the metallic tip. The ion-selective polyvinyl chloride-based membrane is deposited atop the layer of conductive polymer. The length of the ion-sensitive part of the electrode is less than 10 mu m. pH and Mg2+-selective microelectrodes were constructed and tested showing stable potential and fast response that are essential properties for the practical application of microelectrodes for localized scanning measurements.

引用

页码：2447 / 2453

页数：7

共 30 条

[11] Monitoring local spatial distribution of Mg2+, pH and ionic currents [J].

Lamaka, S. V. ;

Karavai, O. V. ;

Bastos, A. C. ;

Zheludkevich, M. L. ;

Ferreira, M. G. S. .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (02) :259-262

[12] DEFINITION AND DETERMINATION OF RESPONSE-TIME OF ION-SELECTIVE ELECTRODES [J].

LINDNER, E ;

TOTH, K ;

PUNGOR, E .

PURE AND APPLIED CHEMISTRY, 1986, 58 (03) :469-479

[13] Quality control criteria for solid-contact, solvent polymeric membrane ion-selective electrodes [J].

Lindner, Ernoe ;

Gyurcsanyi, Robert E. .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2009, 13 (01) :51-68

[14] Response time of ion-selective electrodes -: Current usage versus IUPAC recommendations [J].

Maccà, C .

ANALYTICA CHIMICA ACTA, 2004, 512 (02) :183-190

[15] Bone as an ion exchange organ: Evidence for instantaneous cell-dependent calcium efflux from bone not due to resorption [J].

Marenzana, M ;

Shipley, AM ;

Squitiero, P ;

Kunkel, JG ;

Rubinacci, A .

BONE, 2005, 37 (04) :545-554

[16] Ion transport in roots: measurement of fluxes using ion-selective microelectrodes to characterize transporter function [J].

Newman, IA .

PLANT CELL AND ENVIRONMENT, 2001, 24 (01) :1-14

[17] The new wave of ion-selective electrodes [J].

Pretsch, Erno .

TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2007, 26 (01) :46-51

[18] Non-invasive measurement of bioelectric currents with a vibrating probe [J].

Reid, Brian ;

Nuccitelli, Richard ;

Zhao, Min .

NATURE PROTOCOLS, 2007, 2 (03) :661-669

[19] Solid-contact potentiometric polymer membrane microelectrodes for the detection of silver ions at the femtomole level [J].

Rubinova, Nastassia ;

Chumbimuni-Torres, Karin ;

Bakker, Eric .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 121 (01) :135-141

[20] A HYDROGEN ION-SELECTIVE LIQUID-MEMBRANE ELECTRODE BASED ON TRI-N-DODECYLAMINE AS NEUTRAL CARRIER [J].

SCHULTHESS, P ;

SHIJO, Y ;

PHAM, HV ;

PRETSCH, E ;

AMMANN, D ;

SIMON, W .

ANALYTICA CHIMICA ACTA, 1981, 131 (NOV) :111-116

← 1 2 3 →