title: [Ion floatation-spectrophotometric determination of palladium(II) content in acetaldehyde catalyst].
abstract: The nature of palladium (I) and copper (II) is very similar, so it is very difficult to determine trace palladium (II) in the coexistence of a great quantity of copper (II). This paper applied ion floatation-spectrophotometric principle, using 1-(2-pyridylazo)-2-naphthol (PAN) as collector, and through controlling pH of the solution and determination wavelength, without separation to determine palladium (II) content in acetaldehyde catalyst with a great quantity of copper (II). The relative error was 0.61%, and RSD was 2.33%. The results were satisfactory.
authors.affiliation: College of Science, Beijing University of Chemical Technology, Beijing, China.
authors.forename: Hui-ru
authors.initials: HR
authors.lastname: Dong
authors.forename: Jing-chang
authors.initials: JC
authors.lastname: Zhang
authors.forename: Shao-cheng
authors.initials: SC
authors.lastname: Hu
mesh_terms: D000079:Acetaldehyde / Q000737:chemistry*; D002384:Catalysis; D007477:Ions / Q000737:chemistry; D009284:Naphthols / Q000737:chemistry*; D010165:Palladium / Q000032:analysis*; D013053:Spectrophotometry / Q000379:methods
chemical_list: D007477:Ions; D009284:Naphthols; C041728:1-(2-pyridylazo)-2-naphthol; D010165:Palladium; D000079:Acetaldehyde