NEUTRAL CARRIER SODIUM ION-SELECTIVE MICRO-ELECTRODE FOR INTRACELLULAR STUDIES

被引：257

作者：

STEINER, RA ^{[1
]}

OEHME, M ^{[1
]}

AMMANN, D ^{[1
]}

SIMON, W ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,DEPT ORGAN CHEM,UNIV STR 16,CH-8092 ZURICH,SWITZERLAND

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 03期

关键词：

D O I：

10.1021/ac50039a008

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Na+-selective microelectrodes based on new, synthetic, electrically neutral ion carriers are described. The selectivities in respect to K+ and Mg2+ are adequate for intracellular measurements of Na+ ion activities≥10 mM at ionic backgrounds of 100 mM K+, 2 mM Mg2+, 10-7 M Ca2+. Electrodes with tip diameters of around 1 μm have an electrical resistance of about 1010Ω. and a 90% response time as specified by the IUPAC recommendation of ≤5 s. © 1979, American Chemical Society. All rights reserved.

引用

页码：351 / 353

页数：3

共 23 条

[1]

AMMANN D, 1976, ION ENZYME ELECTRODE, P22

[2]

BERMAN HJ, 1974, ION SELECTIVE MICROE

[3]

CAMMANN K, 1977, ARBEITEN MIT IONENSE

[4]

COLES JA, 1977, J PHYSIOL-LONDON, V270, pP12

[5]

CRAIG RP, 1976, SCIENCE, V194, P725

[6]

EISENMAN G, 1967, GLASS ELECTRODES HYD

[7] NEUTRAL IONOPHORE FOR LIQUID MEMBRANE ELECTRODES OF HIGH SELECTIVITY FOR SODIUM OVER POTASSIUM-IONS [J].

GUGGI, M ;

OEHME, M ;

PRETSCH, E ;

SIMON, W .

HELVETICA CHIMICA ACTA, 1976, 59 (07) :2417-2420

[8]

GUILBAULT GG, 1978, IUPAC INF B, P70

[9]

Kessler M., 1976, ION ENZYME ELECTRODE

[10]

KHURI RN, 1976, ION ENZYME ELECTRODE, P123

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