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Title: [Spectrophotometric determination of trace copper in electroplating wastewater]. Author: Huang N, Xia C, He X. Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2001 Aug; 21(4):529-30. PubMed ID: 12945283. Abstract: In the presence of CPB and OP, the chromogenic reaction of DBH-PF with Cu(II) was studied. The results show that the purple micelle reaction has high sensitivity in the medium of (CH2)6N4-HCl(pH = 5.4) buffered solution, the molar absorptivity is 1.8 x 10(5) L.mol-1.cm-1, and Beer's law is obeyed for Cu(II) in the range of 0.0-9.0 micrograms.25 mL-1 at 540 nm. Combined with solvent extraction separation, the method has been applied to the determination of trace Cu in electroplating wastewater with satisfactory results.[Abstract] [Full Text] [Related] [New Search]