Optical sensing of parts per million levels of water in organic solvents using redox-active osmium chromophore-based monolayers

Tarkeshwar Gupta, Milko E. Van Der Boom

Research output: Contribution to journalArticle

48 Citations (Scopus)


Optical sensing of parts per million (ppm)-levels of H2O (10-300 ppm) in an organic solvent with robust, osmium chromophore-based monolayers is demonstrated. The H2O-induced reduction of the covalently bound osmium(III) complex is fully reversible and can be readily monitored by UV/vis absorption spectroscopy. The thermally robust sensor can be reactivated chemically within 3 min.

Original languageEnglish
Pages (from-to)8400-8401
Number of pages2
JournalJournal of the American Chemical Society
Issue number26
Publication statusPublished - Jul 5 2006


ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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