Table II.

Diffusion Data for Vitamin D₃ Ointment Through Filter Membrane and PDMS Membrane (mean ± SE of three trials)

Type of barrier	Parameter	F1	F2	F3
Filter	Flux [ng/cm2/hr]	1.5 × 103 ± 8.3 × 101	1.9 × 102 ± 1.7 × 101	2.5 × 103 ± 3.0 × 102
	Permeability coefficient [cm/hr]	5.1 × 10−5 ± 2.8 × 10−6	6.3 × 10−6 ± 5.7 × 10−7	8.4 × 10−5 ± 1.0 × 10−5
PDMS membrane	Flux [ng/cm2/hr]	4.7 × 101 ± 3.2 × 100	1.1 × 102 ± 1.4 × 101	2.5 × 102 ± 1.0 × 101
	Permeability coefficient [cm/hr]	1.6 × 10−6 ± 1.1 × 10−7	3.6 × 10−6 ± 4.6 × 10−7	8.2 × 10−6 ± 3.4 × 10−7