title: Reaction-based dual signaling of fluoride ions by resorufin sulfonates.
abstract: We developed new reaction-based probes for the dual signaling of fluoride ions. Selective fluoride-assisted deprotection of resorufin nosylate to generate resorufin fluorochrome was used for signaling. Resorufin nosylate exhibited selective colorimetric and fluorogenic signaling of fluoride ions in acetonitrile. The response from sulfide ions was effectively masked by using the TPEN-Cu(2+) complex as a source of Cu(2+) ions for masking sulfide. Selective optical signaling of fluoride was possible in the presence of commonly encountered anions with a detection limit of 1.9 × 10(-6) M.
authors.affiliation: Department of Chemistry, Chung-Ang University, Seoul 156-756, Korea.
authors.forename: Hyun Gyu
authors.initials: HG
authors.lastname: Im
authors.forename: Hong Yeong
authors.initials: HY
authors.lastname: Kim
authors.forename: Myung Gil
authors.initials: MG
authors.lastname: Choi
authors.forename: Suk-Kyu
authors.initials: SK
authors.lastname: Chang
mesh_terms: D000097:Acetonitriles / Q000737:chemistry; D000476:Alkanesulfonates / Q000737:chemistry*; D048588:Benzoxazines / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry; D005459:Fluorides / Q000737:chemistry*; D007477:Ions; D015394:Molecular Structure; D010078:Oxazines / Q000737:chemistry*; D013451:Sulfonic Acids / Q000737:chemistry
chemical_list: D000097:Acetonitriles; D000476:Alkanesulfonates; D048588:Benzoxazines; D005456:Fluorescent Dyes; D007477:Ions; D010078:Oxazines; D013451:Sulfonic Acids; C014180:resorufin; D005459:Fluorides; C032159:acetonitrile