Discriminating detection between F- and CN- by naked eye from Schiff base sensor

Yen Wen Liu, Min Xiu Kao, An-Tai Wu

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


A simple colorimetric and turn-on fluorescence receptor 1 was prepared and its cations and anions sensing properties were investigated in CH3CN solution. Receptor 1 can selectively sense F- and CN- based on distinct color changes among a series of ions. Receptor 1 displayed a highly selective colorimetric response to fluoride anions based on a hydrogen bonding interaction process and fluorescent with colorimetric response to cyanide anions based on a generation of a cyanide adduct. The detection limit of receptor 1 toward F- and CN- ion was determined to be 0.28 ppm and 0.41 ppm, respectively. The two detection limit values were sufficiently low to detect submicromolar concentration of the F- and CN-.

Original languageEnglish
Pages (from-to)429-435
Number of pages7
JournalSensors and Actuators, B: Chemical
Publication statusPublished - 2015 Mar 1

All Science Journal Classification (ASJC) codes

  • 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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