SILVER SELECTIVE ELECTRODES BASED ON THIOETHER FUNCTIONALIZED CALIX[4]ARENES AS IONOPHORES

Authors
MALINOWSKA E BRZOZKA Z KASIURA K EGBERINK RJM REINHOUDT DN
Citation
E. Malinowska et al., SILVER SELECTIVE ELECTRODES BASED ON THIOETHER FUNCTIONALIZED CALIX[4]ARENES AS IONOPHORES, Analytica chimica acta, 298(2), 1994, pp. 245-251
Citations number
30
Categorie Soggetti
Chemistry Analytical
Journal title
Analytica chimica acta → ACNP
ISSN journal
00032670
Volume
298
Issue
2
Year of publication
1994
Pages
245 - 251
Database
ISI
SICI code
0003-2670(1994)298:2<245:SSEBOT>2.0.ZU;2-#
Abstract
Silver selective electrodes based on thioether functionalized calix[4] arenes 1 and 2 as ionophores were investigated. For both ionophores t he selectivity coefficients (log k(Ag,M)) were lower than -2.2 for Hg( II) and lower than -4.6 for other cations tested. The best results wer e obtained with membranes containing dithioether functionalized calix[ 4]arene (ionophore 2), potassium tetrakis(4-chlorophenyl)borate (KTpCI PB) and bis(1-butylpentyl)adipate (BBPA) as a plasticizer. The Ag(I)re sponse functions exhibited almost theoretical Nernstian slopes in the activity range 10(-6)-10(-1) M of silver ions.