Synthesis and characterization of covalently immobilized bis-crown ether based potassium ionophore

Róbert Bereczki, R. Gyurcsányi, B. Ágai, K. Tóth

Research output: Article

29 Citations (Scopus)

Abstract

The synthesis of a novel covalently immobilized crown ether based potassium ionophore is presented. Apart from previously proposed methods for the preparation of PVC linked ionophores based on the chemical modification of functionalized PVC polymers, the hereby proposed procedure involves the direct copolymerization of a suitable derivative of the bis-crown ether type potassium ionophore (BME 44) and vinyl chloride monomer. The analytical performance of the potentiometric ion selective electrodes incorporating the PVC bound ionophore were optimized and determined. Compared with electrodes based on other bis-crown ether type immobilized potassium selective ionophores a slightly improved logKK,Napot and a longer lifetime was found. Spectral imaging and chronoamperometry were used to study the mobility of different bis-crown ether derivatives in plasticized PVC membranes.

Original languageEnglish
Pages (from-to)63-70
Number of pages8
JournalThe Analyst
Volume130
Issue number1
DOIs
Publication statusPublished - jan. 2005

Fingerprint

Potassium Ionophores
Ionophores
Crown Ethers
Crown ethers
Polyvinyl Chloride
ether
Potassium
potassium
Polyvinyl chlorides
electrode
Derivatives
Vinyl Chloride
Ion-Selective Electrodes
Ion selective electrodes
Chronoamperometry
Chemical modification
Copolymerization
Polymers
Electrodes
polymer

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

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abstract = "The synthesis of a novel covalently immobilized crown ether based potassium ionophore is presented. Apart from previously proposed methods for the preparation of PVC linked ionophores based on the chemical modification of functionalized PVC polymers, the hereby proposed procedure involves the direct copolymerization of a suitable derivative of the bis-crown ether type potassium ionophore (BME 44) and vinyl chloride monomer. The analytical performance of the potentiometric ion selective electrodes incorporating the PVC bound ionophore were optimized and determined. Compared with electrodes based on other bis-crown ether type immobilized potassium selective ionophores a slightly improved logKK,Napot and a longer lifetime was found. Spectral imaging and chronoamperometry were used to study the mobility of different bis-crown ether derivatives in plasticized PVC membranes.",
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AU - Tóth, K.

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