Calix[2]furano[2]pyrrole and related compounds as the neutral carrier in silver ion-selective electrode

Seon Mook Lim, Hyo Jin Chung, Ki Jung Paeng, Chang Hee Lee, Han Nim Choi, Wonyong Lee

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The performance of calix[2]furano[2]pyrrole and related compounds used as neutral carriers for silver selective polymeric membrane electrode was investigated. The silver ion-selective electrode based on calix[2]furano[2]pyrroles gave a good Nernstian response of 57.1 mV per decade for silver ion in the activity range 1×10-6 to 1×10-2M. The present silver ion-selective electrode displayed very good selectivity for Ag+ ion against alkali and alkaline earth metal ions, NH4+, and H+. In particular, the present Ag+-selective electrode exhibited very low responses towards Hg2+ and Pb2+ ions. The potentiometric selectivity coefficients of the silver ion-selective electrode exhibited a strong dependence on the solution pH. In particular, the response of the electrode to the Hg2+ activity was greatly diminished at pH 2.5 compared to that at pH 5.0. Overall, the performance of the present silver ion-selective electrode based on the ionophore, calix[2]furano[2]pyrrole, is very comparable to that of the electrode prepared with the commercially available neutral carrier in terms of slope, linear range, and detection limits.

Original languageEnglish
Pages (from-to)81-88
Number of pages8
JournalAnalytica Chimica Acta
Volume453
Issue number1
DOIs
Publication statusPublished - 2002 Feb 18

Fingerprint

Ion-Selective Electrodes
Pyrroles
Silver
silver
electrode
ion
Electrodes
Ions
Alkaline Earth Metals
Polymeric membranes
Ionophores
Alkalies
alkaline earth metal
Metal ions
Limit of Detection
Membranes
membrane

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

Cite this

Lim, Seon Mook ; Chung, Hyo Jin ; Paeng, Ki Jung ; Lee, Chang Hee ; Choi, Han Nim ; Lee, Wonyong. / Calix[2]furano[2]pyrrole and related compounds as the neutral carrier in silver ion-selective electrode. In: Analytica Chimica Acta. 2002 ; Vol. 453, No. 1. pp. 81-88.
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Calix[2]furano[2]pyrrole and related compounds as the neutral carrier in silver ion-selective electrode. / Lim, Seon Mook; Chung, Hyo Jin; Paeng, Ki Jung; Lee, Chang Hee; Choi, Han Nim; Lee, Wonyong.

In: Analytica Chimica Acta, Vol. 453, No. 1, 18.02.2002, p. 81-88.

Research output: Contribution to journalArticle

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AU - Lee, Wonyong

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