Selective optical recognition and quantification of parts per million levels of Cr(6+) in aqueous and organic media by immobilized polypyridyl complexes on glass.
Selective optical sensing of parts per million levels of Cr(6+) in water under acidic conditions with robust, osmium-chromophore-based monolayers is demonstrated. The sensor system can be reset by washing with water at neutral pH and can be readily monitored by UV/vis spectroscopy.
de Ruiter
Graham
G
Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel.
Gupta
Tarkeshwar
T
van der Boom
Milko E
ME
D000097:Acetonitriles / Q000737:chemistry*; D002840:Chromates / Q000032:analysis*; D005898:Glass / Q000737:chemistry; D055095:Optics and Photonics; D009942:Organometallic Compounds / Q000737:chemistry*; D009992:Osmium / Q000737:chemistry; D011725:Pyridines / Q000737:chemistry*; D012825:Silicon / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013499:Surface Properties; D014867:Water / Q000737:chemistry
D000097:Acetonitriles; D002840:Chromates; D009942:Organometallic Compounds; D011725:Pyridines; D014867:Water; D009992:Osmium; D012825:Silicon