Liquid Anion Exchange Chromatographic Extraction and Separation of Platinum(IV) with n-Octylaniline as a Metallurgical Reagent: Analysis of Real Samples

Table 4

Metal loading capacity of n-octylaniline. (pH = 0.50, Aq : Org = 2.5 : 1, ascorbic acid = 0.01 M, equilibrium time = 3 min, and n-octylaniline = 0.1 M in toluene).

Pt(IV), (𝜇g)	Percentage extraction, (%𝐸)	Distribution ratio, (𝐷)
50	100	∞
100	100	∞
150*	100	∞
200	100	∞
300	100	∞
400	100	∞
600	100	∞
800	100	∞
1000	100	∞
1500	100	∞
2000	81.5	11.01
2500	39.5	1.63

∗Recommended for general extraction procedure.