CPE and liquid ion exchange methods for extraction Cr(VI) and Mn(VII). Extraction for Oxyanions of Cr(VI) and Mn(VII) by Incorporation Cloud Point Method with Liquid Ion Exchange Methods

      Аннотация: The work included formation ion pair association complexes for Cr2O7= and MnO4- with application liquid ion exchange method by used of Janus green B so that extraction these ion pairs by compactness this method with cloud point extraction methodology in presence non-ionic surfactant Triton X-100, afterward determined the extracted species by suitable spectrophotometric method after knowledge and accurate wave length of maximum absorbance of species ion pair complex extracted, as well as the work involved studies about all effective parameters which effect on formation and stability of ion pair association complexes of Cr(VI) and Mn(VII) according to liquid ion exchange method so on the side of separation and extraction these ion pair association complexes by cloud point extraction method, at later application suitable spectrophotometric method for determination of extracted complexes.

Ключевые слова: Chromium, cloud point extraction, manganese, Preconcentration, Liquid Ion Exchange, Janus green B.