Mercury optical fibre probe based on a modified cladding of sensitised Al2O3 nano-particles

  • Javier Pérez-Hernández
  • , Josep Albero
  • , Eduard Llobet
  • , Xavier Correig*
  • , Ignacio R. Matías
  • , Francisco J. Arregui
  • , Emilio Palomares
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

We report an optical fibre probe for mercury detection based on a sensitised alumina cladding. The interaction between the sensitive material and the guided light wave is effected by means of evanescent-field coupling, wherein the colorimetric changes of a Ru(II)-bis-thiocyanate complex modulate the light intensity. The improvement of the water stability measurements of the system has been achieved by treating the alumina clad in sulphuric acid before dye adsorption. A partial least squares calibration model employing spectral features from the optode response enables estimating mercury concentration at a range between 0 and 6 ppm.

Original languageEnglish
Pages (from-to)103-110
Number of pages8
JournalSensors and Actuators B: Chemical
Volume143
Issue number1
DOIs
Publication statusPublished - 4 Dec 2009
Externally publishedYes

Keywords

  • Alumina
  • Mercury
  • Optical fibre
  • PLS

Fingerprint

Dive into the research topics of 'Mercury optical fibre probe based on a modified cladding of sensitised Al2O3 nano-particles'. Together they form a unique fingerprint.

Cite this