title: [Synthesis of azobenzol compound and analytical application in a new catalytic spectrophotometry system].
abstract: Analysis of the indicator synthesis was studied by catalytic spectrophotometry, and the reducing decolorization that the copper(II) catalyzed the ration between ascorbic acid and 3-methyl-4-amino-4'-nitro azobenzol was discussed. Reaction condition was optimized and a highly selective determination of trace copper(II) was established. The detection limit was 0.048 microgram.L-1 for copper (II). The method has been used for determining trace copper(II) in human hair and aluminum alloy samples with satisfactory results.
authors.affiliation: Department of Chemistry, Huabei Coal Normal College, Huaibei 235000, China.
authors.forename: Guang-jian
authors.initials: GJ
authors.lastname: Wang
authors.forename: De-ku
authors.initials: DK
authors.lastname: Shang
authors.forename: Ya-jie
authors.initials: YJ
authors.lastname: Guo
authors.forename: Jian-dong
authors.initials: JD
authors.lastname: Wei
authors.forename: Ling-ling
authors.initials: LL
authors.lastname: Li
authors.forename: Lin-na
authors.initials: LN
authors.lastname: Hu
mesh_terms: D001205:Ascorbic Acid / Q000737:chemistry; D002384:Catalysis; D003300:Copper / Q000032:analysis*; D006801:Humans; D013053:Spectrophotometry / Q000379:methods*; D010128:p-Aminoazobenzene / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry
chemical_list: D010128:p-Aminoazobenzene; C008468:3-methyl-4-methylaminoazobenzene; D003300:Copper; D001205:Ascorbic Acid