Effects of anionic sites on the selectivity of sodium-sensitive CHEMFETs

J.A.J. Brunink; Johan G. Bomer; Johannes F.J. Engbersen; Willem Verboom; David Reinhoudt

doi:10.1016/0925-4005(93)85050-K

Effects of anionic sites on the selectivity of sodium-sensitive CHEMFETs

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Abstract

Calix[4]arene amides incorporated in poly(vinyl chloride) membranes provide good Na+ selectivity for CHEMFETs. A remarkable difference in the Na+/Ca2+ selectivity was observed depending on the presence or absence of tetraphenylborate ions in the membrane matrix. In the latter case the potentiometric selectivity coefficient (log KNa,CaPot) increased from −2.1 to −3.6. Calix[4]arene amides proved to be excellent ionophores to obtain Na+ selectivity in the presence of K+, i.e. log KNa,KPot = −2.7.

Original language	English
Pages (from-to)	195-198
Journal	Sensors and Actuators B: Chemical
Volume	15-
Issue number	16
DOIs	https://doi.org/10.1016/0925-4005(93)85050-K
Publication status	Published - 1993

Keywords

METIS-106748
IR-12567

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10.1016/0925-4005(93)85050-K

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title = "Effects of anionic sites on the selectivity of sodium-sensitive CHEMFETs",

abstract = "Calix[4]arene amides incorporated in poly(vinyl chloride) membranes provide good Na+ selectivity for CHEMFETs. A remarkable difference in the Na+/Ca2+ selectivity was observed depending on the presence or absence of tetraphenylborate ions in the membrane matrix. In the latter case the potentiometric selectivity coefficient (log KNa,CaPot) increased from −2.1 to −3.6. Calix[4]arene amides proved to be excellent ionophores to obtain Na+ selectivity in the presence of K+, i.e. log KNa,KPot = −2.7.",

keywords = "METIS-106748, IR-12567",

author = "J.A.J. Brunink and Bomer, \{Johan G.\} and Engbersen, \{Johannes F.J.\} and Willem Verboom and David Reinhoudt",

year = "1993",

doi = "10.1016/0925-4005(93)85050-K",

language = "English",

volume = "15-",

pages = "195--198",

journal = "Sensors and Actuators B: Chemical",

issn = "0925-4005",

publisher = "Elsevier",

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TY - JOUR

T1 - Effects of anionic sites on the selectivity of sodium-sensitive CHEMFETs

AU - Brunink, J.A.J.

AU - Bomer, Johan G.

AU - Engbersen, Johannes F.J.

AU - Verboom, Willem

AU - Reinhoudt, David

PY - 1993

Y1 - 1993

N2 - Calix[4]arene amides incorporated in poly(vinyl chloride) membranes provide good Na+ selectivity for CHEMFETs. A remarkable difference in the Na+/Ca2+ selectivity was observed depending on the presence or absence of tetraphenylborate ions in the membrane matrix. In the latter case the potentiometric selectivity coefficient (log KNa,CaPot) increased from −2.1 to −3.6. Calix[4]arene amides proved to be excellent ionophores to obtain Na+ selectivity in the presence of K+, i.e. log KNa,KPot = −2.7.

AB - Calix[4]arene amides incorporated in poly(vinyl chloride) membranes provide good Na+ selectivity for CHEMFETs. A remarkable difference in the Na+/Ca2+ selectivity was observed depending on the presence or absence of tetraphenylborate ions in the membrane matrix. In the latter case the potentiometric selectivity coefficient (log KNa,CaPot) increased from −2.1 to −3.6. Calix[4]arene amides proved to be excellent ionophores to obtain Na+ selectivity in the presence of K+, i.e. log KNa,KPot = −2.7.

KW - METIS-106748

KW - IR-12567

U2 - 10.1016/0925-4005(93)85050-K

DO - 10.1016/0925-4005(93)85050-K

M3 - Article

SN - 0925-4005

VL - 15-

SP - 195

EP - 198

JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

IS - 16

ER -

Effects of anionic sites on the selectivity of sodium-sensitive CHEMFETs

Abstract

Keywords

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