AMPEROMETRIC DETECTION OF THE AMMONIUM ION BY FACILITATED ION TRANSFER ACROSS THE INTERFACE BETWEEN 2 IMMISCIBLE ELECTROLYTE-SOLUTIONS

被引：32

作者：

OSBORNE, MD ^{[1
]}

GIRAULT, HH ^{[1
]}

机构：

[1] UNIV EDINBURGH,DEPT CHEM,EDINBURGH EH9 3JJ,MIDLOTHIAN,SCOTLAND

来源：

ELECTROANALYSIS | 1995年 / 7卷 / 05期

关键词：

LIQUID-LIQUID INTERFACE; AMMONIUM ION; NONACTIN; IONOPHORES;

D O I：

10.1002/elan.1140070505

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Facilitated ion transfer reactions of the ammonium, potassium, and sodium ions with the ionophores dibenzo-18-crown-6, nonactin, and valinomycin were investigated at the water/1,2-dichloroethane interface. Association constants for the various reactions studied were calculated to determine the selectivity imparted by the ionophores on the transferring ions. Of the ionophores studied, nonactin was found to be the most selective towards the ammonium ion, with a calculated association constant of 14.1.

引用

页码：425 / 434

页数：10

共 43 条

[1]

Koryta J., Electrochim. Acta, 24, (1979)

[2]

Koryta J., Kozlov Y.N., Skalicky M., J. Electroanal. Chem., 234, (1987)

[3]

Vanysek P., Ruth W., Koryta J., J. Electroanal. Chem., 148, (1983)

[4]

Sabela A., Koryta J., Valent O., J. Electroanal. Chem., 204, (1986)

[5]

Hofmanova A., Hung L.Q., Khalil W., J. Electroanal. Chem., 135, (1982)

[6]

Homolka D., Hung L.Q., Hofmanova A., Khalil M.W., Koryta J., Marecek V., Samec Z., Sen S.K., Vanysek P., Weber J., Brezina M., Janda M., Stibor I., Anal. Chem., 52, (1980)

[7]

Du G., Koryta J., Ruth W., Vanysek P., J. Electroanal. Chem., 159, (1983)

[8]

Koryta J., Selective Electrode Rev., 13, (1991)

[9]

Homolka D., Marecek V., Samec Z., Ryba O., Petranek J., J. Electroanal. Chem., 125, (1981)

[10]

Samec Z., Papoff P., Anal. Chem., 62, (1990)

← 1 2 3 4 5 →