Sensitive spectrophotometric determination of palladium with tin(II) chlorided and rhodamine-6g after flotation |
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| Authors: | K Kalinowski Z Marczensko |
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| Institution: | Department of Analystical Chemistry, Technical University, 00-664 Warsaw Poland |
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| Abstract: | Palladium is determined by reaction with tin(II) chloride and rhordamine-6G in hydrochloric acid medium, flotation of the ion-association complex, (R6G+)2Pd (SnCl?3)4]·(R6G+) (SnCl?3] with di-isopropyl ether, and dissolution in acetone for spectrophotometry. The molar absorptivity is 2.84 x 105 l mol?1 cm?1 at 530 nm; Beer's law is obeyed in the range 0.05–0.35 μg Pd ml?1. Other platinum metals and silver interfere. Traces of palladium in silver metal are determined after extraction of palladium with dimethylglyoxime in chloroform. |
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