Table 1.

The partition coefficients (K Values) and separation factors (α) for HSAF and ATB in different solvent systems.

No.	Solvent system	K value (HSAF)	K value (ATB)	Separation factor (α)
1	n-hexane/ethyl acetate/methanol/water 6:4:5:5	0.07	0.09	1.29
2	n-hexane/ethyl acetate/methanol/water 5:5:5:5	0.20	0.26	1.30
3	n-hexane/ethyl acetate/methanol/water 4:5:4:5	0.56	0.84	1.50
4	n-hexane/ethyl acetate/methanol/water 3:5:3:5	3.10	5.94	1.92
5	n-hexane/ethyl acetate/methanol/water 2:5:2:5	17.01	35.52	2.09
6	n-hexane/ethyl acetate/methanol/water 1:5:1:5	93.49	171.59	1.84
7	n-hexane/ethyl acetate/methanol/water 3:5:4:5	1.29	2.02	1.57

The bold values mean the selected optimal values in the experiment.