Cloud point extraction (CPE), which is the most popular coacervate-based extraction method, was utilized for the separation and preconcentration of trace amounts of cadmium, lead, and nickel. Quinalizarin was used as complexing agent and Triton X-114 was used as surfactant. After extraction, analyte ions were determined by flame atomic absorption spectrometry. The detection limits (3 s) of µg L −1 for Cd(II), µg L −1 for Pb(II), and µg L −1 for Ni(II) were obtained using 50 mL of solutions. |
