- 作者: (Miss) Kamini; S. K. Singh; S. K. Sindhwani; R. P. Singh
- 作者服務機構: Department of Chemistry, University of Delhi, Delhi-7, India
- 中文摘要: A simple, sensitive and selective procedure has been developed for the spectro photometric determination of palladium. Palladium (II) reacts with 2-methyl-1, 4-naphthoquinone thiosemicarbazone to form an orange brown complex in the pH range 8.2-9.5. The sensitivity, in terms of Sandell’s definition, is 0.0025… Pd/cm2 at 500nm. The system adheres to Beer’s law upto 2.66 ppm of palladium and optimum concentration range for the determination of the metal is 0.3-2.29ppm with molar absorbtivity of 4.2×10…mole-1 cm-1. The complex has 1:1molar composition, as deduced by Job’s method. The determination of palladium has been carried out in presence of foreign ions especially in presence of eighth group metals.
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