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Titolo:
Enhanced electrochemical performance of poly(aniline) solid-contact pH electrodes based on alkyldibenzylamine
Autore:
Han, WS; Park, MY; Chung, KC; Cho, DH; Hong, TK;
Indirizzi:
Konkuk Univ, Dept Chem, Seoul 143701, South Korea Konkuk Univ Seoul South Korea 143701 ept Chem, Seoul 143701, South Korea Hanseo Univ, Dept Chem, Seosan 356820, Chungnam, South Korea Hanseo Univ Seosan Chungnam South Korea 356820 820, Chungnam, South Korea
Titolo Testata:
ANALYTICAL SCIENCES
fascicolo: 11, volume: 16, anno: 2000,
pagine: 1145 - 1149
SICI:
0910-6340(200011)16:11<1145:EEPOPS>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
POLYMERIC MEMBRANE ELECTRODES; ION-SELECTIVE ELECTRODES; NEUTRAL CARRIER; POTASSIUM; DESIGN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Han, WS Konkuk Univ, Dept Chem, Seoul 143701, South Korea Konkuk Univ Seoul South Korea 143701 , Seoul 143701, South Korea
Citazione:
W.S. Han et al., "Enhanced electrochemical performance of poly(aniline) solid-contact pH electrodes based on alkyldibenzylamine", ANAL SCI, 16(11), 2000, pp. 1145-1149

Abstract

Hydrogen ion-selective solid-contact electrodes based on alkyldibenzylamine (alkyl=butyl, hexyl, octyl, decyl, dodecyl) have been prepared. Solid-contact electrodes have been fabricated from polymer cocktail solutions based on alkyldibenzylamine. We have shown that the response ranges and Nernstianslopes are influenced by the alkyl chain length. Especially, solid-contactelectrodes with decyldibenzylamine have shown the best selectivity, reproducibility of e.m.f. and long-term stability. Solid-contact electrodes containing decyldibenzylamine were shown to be linearly selective to hydrogen ion in the range of pH 2.1 - 12.4; their Nernstian slopes were 52.9 mV/pH at 20 +/- 0.2 degreesC. This electrode, coated with PVC containing decyldibenzylamine neutral carrier, showed no redox response in comparison with an uncoated Pt electrode and a poly(aniline)-coated Pt electrode. The 90% response time was less than 5 s, and their electrical resistance varied in the range of 0.1 - 2.0 M Omega.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 08:14:27