title: The synthesis and application of 1-(o-nitrophenyl)-3-(2-thiazolyl)triazene for the determination of palladium(II) by the resonance enhanced Rayleigh light-scattering technique.
abstract: The resonance Rayleigh light-scattering (RRLS) signal of a new triazene reagent; 1-(o-nitrophenyl)-3-(2-thiazolyl)triazene (o-NPTT), was firstly synthesized and characterized in this paper at 500-600 nm wavelength range and can be enhanced remarkably by Pd2+. According to this phenomenon, a new method was developed for the determination of Pd2+ by the RRLS technique in the presence of Tween-80. The calibration graph showed good linearity over a concentration range of 5.0-700 microg l(-1) with a detection limit of 1.0 microg l(-1). There are almost no foreign ions interfered in the determination at a more than fivefold concentration of Pd2+. The method is relatively sensitive, of good selectivity and has been successfully used for the determination of trace palladium in the slag of fertilizer factories and catalyst samples.
authors.affiliation: Department of Chemistry, Yunnan University, Kunming, PR China.
authors.forename: Q E
authors.initials: QE
authors.lastname: Cao
authors.forename: Y
authors.initials: Y
authors.lastname: Zhao
authors.forename: X
authors.initials: X
authors.lastname: Yao
authors.forename: Z
authors.initials: Z
authors.lastname: Hu
authors.forename: Q
authors.initials: Q
authors.lastname: Xu
mesh_terms: D010165:Palladium / Q000032:analysis / Q000737:chemistry*; D013057:Spectrum Analysis; D013844:Thiazoles / Q000138:chemical synthesis / Q000737:chemistry*; D014226:Triazenes / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: C416550:1-(o-nitrophenyl)-3-(-thiazolyl)triazene; D013844:Thiazoles; D014226:Triazenes; D010165:Palladium