Microdetermination of palladium using benzildioxime and thiocyanate

Abstract

Palladium(II) forms a light yellow 1: 1: 2 complex with benzildioxime in presence of thiocyanate at 0.10-1.00 mol L -1 HCl. The complex is non-extractable in nature and shows absorption maximum at 363-368 nm. The molar absorptivity of the complex is 3.088 x 10 3 L mol -1 cm -1 with a Beer's law range of 0-15.5 μg mL -1 . The method Is quite simple and rapid and has been satisfactorily applied for the determination of palladium in μg amounts in various synthetic and technical samples.