Journal of hazardous materials, 160(2-3), 435-440 (2008-04-25)
A cloud point extraction procedure was presented for the preconcentration of copper(II) ion in various samples. After complexation by 4-(phenyl diazenyl) benzene-1,3-diamine (PDBDM) (chrysoidine), copper(II) ions were quantitatively recovered in Triton X-114 after centrifugation. 0.5ml of methanol acidified with 1.0molL(-1)
Journal of hazardous materials, 137(2), 827-835 (2006-04-08)
Cloud point extraction (CPE) is carried out to extract chrysoidine dye from aqueous solution using two different non-ionic surfactants, TX-100 and TX-114. The effects of different operating parameters, e.g., concentrations of surfactant, dye and salt, temperature, pH on extraction of
In a case-control study of 240 men with urothelial cancer diagnosed in 1984 and 240 matched control subjects smoking and coarse fishing were found to be significantly associated with the disease. Duration of exposure to the chrysoidine azo dyes used