抄録
A new spectrophotometric method for the determination of iron(III) after adsorption of its complex on microcrystalline naphthalene has been investigated. Iron(III) forms a water-insoluble complex with 5, 7-dichlorooxine in pH range 1.5-10.0. The complex is easily adsorbed on microcrystalline naphthalene from its acetone solution. The naphthalene mixture is separated, dried and dissolved in dimethylformamide. The absorbance of the solution is measured at 476 nm. The method has been applied to the determination of iron(III) in metallic alloys and aqueous environmental samples and the results were compared with the standard 1, 10-phenanthroline colorimetric method.
