Abstract
Highly sensitive method for separation and determination of micro amount of oxyanion for Mo(VI), W(VI), and Mn(VII) was performed. It has been done after formation of ion pair association complexes with Safranin as complexing agent including joint cloud point extraction with liquid ion exchange methods in the presence of non-ionic surfactant Triton X–100. The study is based on the values of wavelength of maximum absorbance, λmax= 536, 533, and 534nm respectively. Optimal conditions have been pinpointed high extraction efficiency needed for HCl concentration (1.0, 1.0 and 0.6) M respectively in the presence of 50µg metal ions in 10mL aqueous solutions. Besides, the stoichiometry of probable extracted structure of ion pair complexes was1:1:1 for all extracted complex, in addition to other effective parameters on extraction efficiency in this study.
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