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[Synthesis of azobenzol compound and analytical application in a new catalytic spectrophotometry system]
Guang-jian Wang1, De-ku Shang, Ya-jie Guo
1Department of Chemistry, Huabei Coal Normal College, Huaibei 235000, China.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 5, 2003
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.