[Synthesis of azobenzol compound and analytical application in a new catalytic spectrophotometry system].
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.
Wang
Guang-jian
GJ
Department of Chemistry, Huabei Coal Normal College, Huaibei 235000, China.
Shang
De-ku
DK
Guo
Ya-jie
YJ
Wei
Jian-dong
JD
Li
Ling-ling
LL
Hu
Lin-na
LN
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
D010128:p-Aminoazobenzene; C008468:3-methyl-4-methylaminoazobenzene; D003300:Copper; D001205:Ascorbic Acid