Organically-doped sol-gel based tube detectors: Determination of iron(II) in aqueous solutions

I. Kuselman*, O. Lev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

A novel type of disposable sensor for the determination of iron(II) in aqueous solution is described. The iron sensor serves to exemplify a new class of disposable field tests for field analysis of water pollutants. The sensors are comprised of capillary glass tubes filled with porous sol-gel silica powder doped with o-phenanthroline. When a sample solution is passed through a tube detector the iron ions are complexed by the immobilized o-phenanthroline and a stained section of the capillary develops. Metrological characteristics of these detectors including precision and accuracy and chemical interferences by heavy metals and humic acids are discussed.

Original languageAmerican English
Pages (from-to)749-756
Number of pages8
JournalTalanta
Volume40
Issue number5
DOIs
StatePublished - May 1993

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