Spectrophotometric detection of heavy metals by doped sol-gel glass detectors

Berta Iosefzon-Kuyavskaya, Ida Gigozin, Michael Ottolenghi, David Avnir, Ovadia Lev*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


The recently developed method of immobilization of organic reagents in porous silica glass via the sol-gel procedure is used in order to produce quantitative photometric sensors. Silica glass detectors doped with 1-nitroso-2-naphthol for detection of cobalt ions and o-phenanthroline for determination of divalent iron serve as test cases that demonstrate the advantages and the current limitations of the immobilization procedure.

Original languageAmerican English
Pages (from-to)808-812
Number of pages5
JournalJournal of Non-Crystalline Solids
Issue numberC
StatePublished - 1992

Bibliographical note

Funding Information:
The development of applications of doped glasses is currently supported by the National Council for Research and Development, Israel, and GSF, Miinchen, Germany; by the Szold Foundation; by the Ministry of Industry and Commerce and by the Krupp Foundation, Germany; and by the Materials division of the US Army (UK).


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