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Titolo:
Calixazacrown ethers for copper(II) ion-selective electrode
Autore:
Park, SJ; Shon, OJ; Rim, JA; Lee, JK; Kim, JS; Nam, H; Kim, H;
Indirizzi:
Konyang Univ, Dept Chem, Nonsan 320711, South Korea Konyang Univ Nonsan South Korea 320711 Chem, Nonsan 320711, South Korea Seoul Natl Univ, Ctr Mol Catalysis, Sch Chem & Mol Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 Engn, Seoul 151742, South Korea Kwangwoon Univ, Dept Chem, Seoul 139701, South Korea Kwangwoon Univ Seoul South Korea 139701 Chem, Seoul 139701, South Korea
Titolo Testata:
TALANTA
fascicolo: 2, volume: 55, anno: 2001,
pagine: 297 - 304
SICI:
0039-9140(20010830)55:2<297:CEFCIE>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEMBRANE ELECTRODES; DETECTION LIMIT; CALIX<4>ARENES; COEFFICIENTS; CALIXCROWNS; CARRIERS;
Keywords:
calix[4]arene; azacrown ether; transition metal; potentiometry; ion-selective electrode;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, JS Konyang Univ, Dept Chem, Nonsan 320711, South Korea Konyang Univ Nonsan South Korea 320711 onsan 320711, South Korea
Citazione:
S.J. Park et al., "Calixazacrown ethers for copper(II) ion-selective electrode", TALANTA, 55(2), 2001, pp. 297-304

Abstract

Five novel 1,3-alternate calix[4]azacrown ethers having 2-picolyl, 3-picolyl, and benzyl unit on the nitrogen atom were synthesized and used as ionophores for transition metal-selective polymeric membrane electrodes. The electrode based on 2-picolyl armed 1,3-alternate calix [4] azacrown ether exhibited Nernstian response toward copper (II) ion over a concentration range (10(-4.5) M-10(-2.5) M). The detection limit was determined as 10(-5) M in pH 7 and the selectivity coefficients for possible interfering cations wereevaluated. Anions in the sample solution strongly affected the electrode response. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 23:14:38