Table 3.

Theoretical load, effective load, and encapsulation efficiency (E.E.) of sonicated liposomes produced at different weight ratio of ferrous sulfate to the total formulation components. Results are expressed as average of three determinations and reported along with the standard deviation (SD).

Weight Ratio of Ferrous Sulfate to the Total Formulation Components	0.06 w/w Fe/Total Components	0.035 w/w Fe/Total Components	0.02 w/w Fe/Total Components	0.01 w/w Fe/Total Components
Theoretical load ± SD (%)	4.23	3.41	2.30	0.980
Effective load ± SD (%)	0.990 ± 0.03	1.28 ± 0.32	1.22 ± 0.20	0.930 ± 0.13
E.E. ± SD (%)	22.33 ± 0.580	42.14 ± 6.74	52.20 ± 1.41	96.63 ± 2.70