title: Analytical properties of 1-phenyl-1,2-propanedione-2-oxime thiosemicarbazone: simultaneous spectrophotometric determination of copper(II) and nickel(II) in edible oils and seeds.
abstract: The analytical properties of 1-phenyl-1,2-propanedione-2-oxime thiosemi-carbazone (PPDOT) are described for the first time. The reagent gives colour reactions with copper(II) and nickel(II) in sodium acetate-acetic acid buffer medium. The copper complex shows maximum absorbance at 465 nm while the nickel complex at 395 nm. Therefore, these colour reactions have been advantageously used for the simultaneous spectrophotometric determination of copper(II) and nickel(II) in synthetic mixture and also in edible oils and seeds.
authors.affiliation: Department of Chemistry, Sri Krishnadevaraya University, Anantapur 515 003, India.
authors.forename: K Hussain
authors.initials: KH
authors.lastname: Reddy
authors.forename: N B L
authors.initials: NB
authors.lastname: Prasad
authors.forename: T Sreenivasulu
authors.initials: TS
authors.lastname: Reddy