Calixazacrown ethers for copper(II) ion-selective electrode

Su Jeong Park, Ok Jae Shon, Jeong Ah Rim, Jae Kwang Lee, Jong Seung Kim, Hakhyun Nam, Hasuck Kim

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56 Citations (Scopus)

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 were evaluated. Anions in the sample solution strongly affected the electrode response.

Original languageEnglish
Pages (from-to)297-304
Number of pages8
JournalTalanta
Volume55
Issue number2
DOIs
Publication statusPublished - 2001 Aug 30
Externally publishedYes

Keywords

  • Azacrown ether
  • Calix[4]arene
  • Ion-selective electrode
  • Potentiometry
  • Transition metal

ASJC Scopus subject areas

  • Analytical Chemistry

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    Park, S. J., Shon, O. J., Rim, J. A., Lee, J. K., Kim, J. S., Nam, H., & Kim, H. (2001). Calixazacrown ethers for copper(II) ion-selective electrode. Talanta, 55(2), 297-304. https://doi.org/10.1016/S0039-9140(01)00420-9