Table 3.

Assay of GEM, and RSV raw materials and their combined synthetic tablets using the proposed method and comparison with the reported spectrophotometric method.

	Parameters	Proposed method		Reference method
		GEM	RSV	GEM	RSV
Raw materials	Mean % recovery ± SDa	100.66 ± 0.24	99.51 ± 0.38	100.28 ± 0.53	99.26 ± 0.79
	RSD%	0.24	0.38	0.53	0.80
	F-testb	0.21	0.23
	t-testb	1.47	0.64
Synthetic Zemiro tablets	Mean % recovery ± SDa	98.83 ± 0.86	100.19 ± 0.64	99.77 ± 0.75	99.39 ± 0.94
	RSD%	0.87	0.64	0.75	0.95
	F-testb	1.25	0.47
	t-testb	0.51	1.58

^aMean% recovery ± SD of five determinations.

^bThe tabulated values of F and t, at p = 0.05, are 6.39 and 1.86, respectively.