All-solid-state potentiometric sensor for iodide and cyanide based on a mixed AgI/Ag2S/epoxy membrane

  • Joyce Tan Chemical Sensors and Biosensors Laboratory, Research Center for the Natural Sciences, University of Santo Tomas, Manila
  • Arben Merkoci Grup de Sensors i Biosensors, Departament de Quimica, Universitat Autonoma de Barcelona, Bellaterra
  • Salvador Alegret Grup de Sensors i Biosensors, Departament de Quimica, Universitat Autonoma de Barcelona, Bellaterra
  • Fortunato Sevilla III Chemical Sensors and Biosensors Laboratory, Research Center for the Natural Sciences, University of Santo Tomas, Manila
Keywords: potentiometric sensor, iodide, cyanide, AgI/A2S/epoxy membrane

Abstract

An all-solid-state potentiometric sensor for iodide and cyanide ions was developed. A rigid and mechanically robust membrane was obtained by the dispersion of the mixed silver iodide/silver sulfide salt in epoxy. The developed sensor showed very good potentiometric characteristics to iodide ions and cyanide ions as exhibited by its Nernstian response and high linearity. Response times ofless than a minute are common. The surface can be renewed by simple polishing to produce a reproducible surface.
How to Cite
Tan, J., Merkoci, A., Alegret, S., & Sevilla III, F. (1). All-solid-state potentiometric sensor for iodide and cyanide based on a mixed AgI/Ag2S/epoxy membrane. KIMIKA, 18(2), 23-28. https://doi.org/10.26534/kimika.v18i2.23-28
Section
Research Articles