title: Gravimetric and spectrophotometric determination of palladium with 2-hydroxy-5-methylpropiophenone oxime.
abstract: 2-hydroxy-5-methylpropiophenone oxime (HMP) reacts with palladium in strongly acidic media to form a yellow water-insoluble complex. Palladium has been determined gravimetrically and interference by certain ions studied. The yellow complex is extractable into carbon tetrachloride in the pH range 1-4. The absorption maximum of the complex lies at 375 mmu, and Beer's law is obeyed in the range 0-15 ppm of palladium. The sensitivity is 0.22 mug Pd/cm(2) for log I(0)/I = 0.001. The effect of a number of foreign ions has been studied and several can be tolerated to an appreciable extent. The ratio of metal: ligand in the complex is 1:2.
authors.affiliation: Department of Chemistry University of Delhi Delhi-7, India.
authors.forename: S
authors.initials: S
authors.lastname: Prakash
authors.forename: R P
authors.initials: RP
authors.lastname: Singh
authors.forename: K C
authors.initials: KC
authors.lastname: Trikha