title: [Column chromatographic preconcentration of trace copper in natural water using dithizone supported on naphthalene and determined by atomic absorption spectrometer].
abstract: In this paper a column chromatographic preconcentration method using dithizone supported on naphthalene for copper in natural water is provided. The dissolving reagent is dimethylformamide (DMF). The dissolving solution is determined by atomic absorption spectrometer. The effect of pH, the flow rate of water samples, the choice of dissolving reagent, the effect of diverse ions were studied. RSD is 2.3%. The recoveries for the added standard are between 96%-103%. This method was applied to determined trace copper in natural water samples and standard water samples with satisfactory results.
authors.affiliation: Department of Chemistry, Langfang Teacher's Special College, 065000 Langfang.
authors.forename: H
authors.initials: H
authors.lastname: He
authors.forename: Z
authors.initials: Z
authors.lastname: Ju