title: Dissolution of cellulose in ionic liquids as a way to obtain test materials for metal-ion detection.
abstract: Cellulose films containing entrapped analytical reagents suitable for metal-ion detection are produced by joint dissolution of cellulose and the reagents in ionic liquids then precipitation with water. The conditions of preparation of these test materials have been optimized and their properties have been studied. The film obtained by use of the ionic liquid 1-butyl-3-methylimidazolium chloride and 1-(2-pyridylazo)-2-naphthol has been used for colorimetric determination of divalent zinc, manganese, and nickel with detection limits at the 10(-6) mol L-1 level.
authors.affiliation: Department of Chemistry, Lomonosov Moscow State University, 119992 GSP-2, Moscow, Russia.
authors.forename: Vladimir M
authors.initials: VM
authors.lastname: Egorov
authors.forename: Svetlana V
authors.initials: SV
authors.lastname: Smirnova
authors.forename: Andrey A
authors.initials: AA
authors.lastname: Formanovsky
authors.forename: Igor V
authors.initials: IV
authors.lastname: Pletnev
authors.forename: Yury A
authors.initials: YA
authors.lastname: Zolotov
mesh_terms: D002138:Calibration; D002482:Cellulose / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D052578:Ionic Liquids / Q000737:chemistry*; D007477:Ions / Q000737:chemistry*; D007700:Kinetics; D008670:Metals / Q000737:chemistry*; D012995:Solubility
chemical_list: D052578:Ionic Liquids; D007477:Ions; D008670:Metals; D002482:Cellulose