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

Figure 2

Absorption spectra of the ternary Co-PAR-Nt complex and the blank (PAR-Nt) in chloroform. 𝐶_Co=1.7×10⁻⁵molL⁻¹, 𝐶_PAR=1.4×10⁻⁴molL⁻¹, 𝐶_Nt=3.5×10⁻⁴molL⁻¹, and  pH=5.3, 𝑙=1cm.