PLASTICIZED POLYVINYL-CHLORIDE) PROPERTIES AND CHARACTERISTICS OF VALINOMYCIN ELECTRODES - CURRENT TIME RESPONSES TO VOLTAGE STEPS

被引:65
作者
IGLEHART, ML
BUCK, RP
HORVAI, G
PUNGOR, E
机构
[1] UNIV N CAROLINA,DEPT CHEM,CHAPEL HILL,NC 27514
[2] TECH UNIV BUDAPEST,H-1111 BUDAPEST XI,HUNGARY
关键词
ELECTROCHEMISTRY - MATHEMATICAL MODELS - MEMBRANES - POLYVINYL CHLORIDE;
D O I
10.1021/ac00161a014
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Approximate analysis of current-line transients in the Kval ion-carrier system can be done for short- and long-time responses. The whole transport problem is nonlinear, but good approximations are possible for fixed-site membranes. A unique value of D//v//a//l, calculated from short- and from long-time data, agrees with the steady-state value already reported. There is no evidence for K** plus hopping; motion of Kval plus from fixed site-to-site with back diffusion of free valinomycin is sufficient to explain transient and steady-state responses.
引用
收藏
页码:1018 / 1022
页数:5
相关论文
共 21 条
[1]  
BRUMLEVE TR, 1978, J ELECTROANAL CHEM, V90, P1, DOI 10.1016/S0022-0728(78)80137-5
[2]   TRANSIENT ELECTRICAL BEHAVIOR OF GLASS MEMBRANES .3. EXPERIMENTAL [J].
BUCK, RP ;
KRULL, I .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1968, 18 (04) :387-&
[3]   DONNAN EXCLUSION FAILURE IN LOW ANION SITE DENSITY MEMBRANES CONTAINING VALINOMYCIN [J].
BUCK, RP ;
TOTH, K ;
GRAF, E ;
HORVAI, G ;
PUNGOR, E .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1987, 223 (1-2) :51-66
[5]   POLAROGRAPHY IN A BINARY SALT SOLUTION [J].
CHAPMAN, TW ;
NEWMAN, J .
JOURNAL OF PHYSICAL CHEMISTRY, 1967, 71 (02) :241-&
[6]   STEADY-STATE PROPERTIES OF AN ION EXCHANGE MEMBRANE WITH MOBILE SITES [J].
CONTI, F ;
EISENMAN, G .
BIOPHYSICAL JOURNAL, 1966, 6 (03) :227-&
[7]   PLASTICIZED POLYVINYL-CHLORIDE) PROPERTIES AND CHARACTERISTICS OF VALINOMYCIN ELECTRODES .1. HIGH-FREQUENCY RESISTANCES AND DIELECTRIC-PROPERTIES [J].
HORVAI, G ;
GRAF, E ;
TOTH, K ;
PUNGOR, E ;
BUCK, RP .
ANALYTICAL CHEMISTRY, 1986, 58 (13) :2735-2740
[8]   PLASTICIZED POLYVINYL-CHLORIDE) PROPERTIES AND CHARACTERISTICS OF VALINOMYCIN ELECTRODES - DC CURRENT VOLTAGE CURVES [J].
IGLEHART, ML ;
BUCK, RP ;
PUNGOR, E .
ANALYTICAL CHEMISTRY, 1988, 60 (04) :290-295
[9]  
LAPRADE R, 1975, MEMBRANES, V3, pCH3
[10]   RESPONSES OF SITE-CONTROLLED, PLASTICIZED MEMBRANE ELECTRODES [J].
LINDNER, E ;
GRAF, E ;
NIEGREISZ, Z ;
TOTH, K ;
PUNGOR, E ;
BUCK, RP .
ANALYTICAL CHEMISTRY, 1988, 60 (04) :295-301