Pt(IV), (μg) Percentage extraction Distribution ratio
50 100
100 100
150* 100
200 100
300 100
600 100
800 94.6
1000 74.1
1500 59.4
2000 81.5 11.01
2500 39.5 1.63
*Recommended for general extraction procedure
pH=0.50, Aq: Org=2.5: 1
Ascorbic acid=0.01 M, Equilibrium time=3 min
n-octylaniline=0.1 M in toluene
Table 4: Metal loading capacity of n-octylaniline.