Complex Formation in a Liquid-Liquid Extraction System Containing Cobalt(II), 4-(2-Pyridylazo)resorcinol, and Nitron

Figure 3

Absorbance of Co-PAR-Nt extracts against blank (line 1) and blank against chloroform (line 2) versus pH of the aqueous phase plots. 𝐶_Co=1.7×10⁻⁵molL⁻¹, 𝐶_PAR=1.4×10⁻⁴molL⁻¹, 𝐶_Nt=3.5×10⁻⁴molL⁻¹, 𝜆=520nm, and 𝑙=1cm.