微量のパラジウムのジチゾンクロマトグラフ分析法

概要

論文の詳細を見る
The work reported is an outgrowth of a study in extending the applicability of the chromatographic adsorption analysis of metal chelates to trace analysis. Palladium dithizonate has been separated on an activated alumina column. After chromatographic separation from interfering elements, palladium dithizonate of green color was determined photometrically at 640 mμ. With about 10 μg palladium, a complete extraction with dithizone was carried out in wide range of dithizone concentrations and from 1 to 6<I>N</I> hydrochloric or sulfuric acid. Palladium separations effected with 0.7 × 5cm columns of alumina, 100/325 mesh, 10 % moisture content, and using chloroform as an eluant. The effluent was diluted to 2 m<I>l</I> when palladium was less than 1μg. In the proposed method, copper, bismuth, mercury and platinum had no interferences. About 0.01% of palladium could be rapidly determined from 1 mg of platinum metal sample in 30 minutes. Palladium contents found by the proposed method were 0.014% and 0.0094% in platinum wire and plate, respectively. For 0.2μg of palladium, the coefficient of variation was 15%.
社団法人日本分析化学会の論文