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Title: Spectrophotometric determination of palladium(II) using piperonal thiosemicarbazone
Authors: Shetty, Prakash
Shetty, A Nityananda
Gadag, R V
Issue Date: May-2003
Publisher: NISCAIR-CSIR, India
Abstract: A simple, rapid, selective and sensitive spectrophotometric method for the determination of palladium is proposed using piperonal thiosemicarbazone (PATS) as a reagent. The reagent forms a 1:2 complex (Pd:Reagent) with palladium. The yellow complex is soluble in 32-40% ethanol and has an absorption maximum at 363 nm. Beer's law is obeyed upto 3.85 ppm of palladium and the optimum concentration range is 0.5-2.45 ppm of Pd. The molar absorptivity and Sandell's sensitivity are 3.80×104 dm3 mol-1 cm-1 and 2.8×10-3 μg cm-2, respectively. The experimental conditions for complete colour development and the interference from various ions are investigated. The method is used for the determination of palladium in its complexes and synthetic mixtures.
Page(s): 287-290
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.10(3) [May 2003]

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