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

Figure 6

Determination of the Nt-to-Co molar ratio by the method of Asmus. 𝐶_Co=1.7×10⁻⁵molL⁻¹, 𝐶_PAR=1.0×10⁻⁴molL⁻¹, pH=5.3,𝜆=520nm, and 𝑙=1cm.