Mercury(II) sensors based on calix[4]arene derivatives as receptor molecules

Rakesh Kumar Mahajan, Ravneet Kaur, Vandana Bhalla, Manoj Kumar, Tetsutaro Hattori, Sotaro Miyano

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Mercury(II) sensors prepared by incorporating three different calix[4]arene derivatives as neutral receptor molecules showed near-Nernstian slopes within wide linear concentration ranges and low detection limits of order ∼10-6 M. The sensors were found to work well in the pH range of ∼1.0-4.0 with response time of less than 20 s and showed reproducible and stable potentiometric signals. The selectivity coefficient values showed better sensitivity and selectivity of these sensors for mercury(II) ions over various mono-, di, trivalent cations studied. The sensors were also applied as indicator electrodes in the potentiometric titrations and successfully used to determine mercury(II) ions in synthetic samples.

Original languageEnglish
Pages (from-to)290-294
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume130
Issue number1
DOIs
Publication statusPublished - 2008 Mar 14

Keywords

  • Calix[4]arenes
  • Indicator electrodes
  • Ion-selective sensors
  • Mercury(II)
  • Potentiometry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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