title: Preparation of Amberlite XAD resins coated with dithiosemicarbazone compounds and preconcentration of some metal ions.
abstract: The Amberlite XAD resins coated with dithiosemicarbazones were prepared and their collection behavior of metal ions from aqueous solution was investigated. Among the resins used, the reagent-loaded Amberlite XAD-7 was found to be superior for the collection of metal ions to other reagent-loaded resins used. The quantitative collection of mercury(II), palladium(II) and copper(II) was obtained from acidic medium, while cadmium(II) and lead(II) was obtained from neutral medium by the Amberlite XAD-7 resin coated with dimethylglyoxal bis(4-phenyl-3-thiosemicarbazone) (DMBS). These metal ions collected on the resin were easily eluted with a small volume of N,N-dimethylformamide as their DMBS chelates. This collection-elution method was applied to the determination of their metal ions by reversed-phase high performance liquid chromatography with a spectrophotometric detection.
authors.affiliation: Department of Applied and Environmental Chemistry, Kitami Institute of Technology, 165, Koen-cho-Kitami-shi, Hokkaido, 090 Japan.
authors.forename: S
authors.initials: S
authors.lastname: Hoshi
authors.forename: H
authors.initials: H
authors.lastname: Fujisawa
authors.forename: K
authors.initials: K
authors.lastname: Nakamura
authors.forename: S
authors.initials: S
authors.lastname: Nakata
authors.forename: M
authors.initials: M
authors.lastname: Uto
authors.forename: K
authors.initials: K
authors.lastname: Akatsuka