Sensitive Cloud Point Extraction Methodology for Separation Preconcentration of Co(II) Followed by Spectrophotometric Determination in Different Samples

Abstract

With application CPE methodology to separation preconcentration and extraction Co²⁺ion used 2-[4-antybyren zolylazo]-1,2-dihydroxy-9,10-anthracene-dione (AADAD) as complexing agent to form ion pair complex as well as used non-ionic surfactant 1% Tritonx-100 at PH=8 , also this research involved limitation optimum conditions as well as thermodynamic study , Synergism effect and spectrophotometric determination of Co(II) in different samples with detection limit(D.L) =(1.6559×10^-5µg.mL^-1) and Sandell’s sensitivity =(7.99×10^-5mg.cm^-2) and ε =(7374.12L.mol^-1.cm^-1 )and RSD% =(%0.0065).

Keywords:Cobalt(II) , Cloud point layer ,TritonX-100.