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Titolo:
All solid state hydrogen ion selective electrode based on a tribenzylamineneutral carrier in a poly(vinyl chloride) membrane with a poly(aniline) solid contact
Autore:
Han, WS; Park, MY; Chung, KC; Cho, DH; Hong, TK;
Indirizzi:
Konkok Univ, Dept Chem, Seoul 143701, South Korea Konkok Univ Seoul South Korea 143701 ept Chem, Seoul 143701, South Korea Hanseo Univ, Dept Chem, Chungnam 356820, South Korea Hanseo Univ Chungnam South Korea 356820 em, Chungnam 356820, South Korea
Titolo Testata:
ELECTROANALYSIS
fascicolo: 11, volume: 13, anno: 2001,
pagine: 955 - 959
SICI:
1040-0397(200107)13:11<955:ASSHIS>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
POTASSIUM; IONOPHORE; DESIGN;
Keywords:
tribenzylamine; SCE; ISE; hydrogen ion sensor; neutral carrier;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Han, WS Konkok Univ, Dept Chem, Seoul 143701, South Korea Konkok Univ Seoul South Korea 143701 , Seoul 143701, South Korea
Citazione:
W.S. Han et al., "All solid state hydrogen ion selective electrode based on a tribenzylamineneutral carrier in a poly(vinyl chloride) membrane with a poly(aniline) solid contact", ELECTROANAL, 13(11), 2001, pp. 955-959

Abstract

Hydrogen ion selective solid contact electrode based on tribenzylamine have shown the best Nernstian slope, selectivity and the widest response rangein Tris buffered pH sample solutions. Their linear dynamic range was pH 2.48-11.21 and Nernstian slope showed 55.1 mV/pH (at 20 +/- 0.2 degreesC). When it was directly applied to human whole blood (in pH range 6.0-8.5), we could get the same satisfying results. This electrode continuously contactedTris 7.47 buffered solutions, human whole blood and hydrofluoric acid solutions for one month without any loss of performance. Especially, hydrofluoric acid did not influence the surface of this electrode, thus this electrode was maintained without showing any changes in potentials after used in hydrofluoric acid solution. The standard deviation in the e.m.f differences determined was 1.0 mV (N = 10) at Tris buffer solution of pH 6.5 and 0.5 mV at Tris buffer solution of pH 8.5. The 90% response time of the electrodes obtained by injection of hydrochloric acid into Tris buffer sample solutionwas less than 8 s.

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Documento generato il 26/11/20 alle ore 09:00:24