Table 1.

The half-life (t_1/2) and the drug retention values determined by second-order kinetic models for different systems.

PBS (pH = 7.4, 0.15 M NaCl)
	t1/2 (min)	td (min)	Drug retention
pure vitamin B1	1.96	2.62	0.00
manufactured B1 tablet	2.57	3.49	1.31
liposomal carrier	8.71	10.94	4.44
Artificial gastric juice (pH = 1.5, 0.2 M KCl)
pure vitamin B1	2.96	3.11	0.00
manufactured B1 tablet	3.93	4.55	1.33
liposomal carrier	4.56	5.91	1.54