Novel microwell-based spectrophotometric assay for determination of atorvastatin calcium in its pharmaceutical formulations

Table 3 Analysis of ATR-Ca in its pharmaceutical formulations by the reported and proposed methods

Pharmaceutical formulation	Content (% ± SD) ^a		t-Value ^b	F-value ^b
	Proposed method	Reported method
Lipitor tablets	97.24 ± 1.50	99.30 ± 1.22	2.42	1.51
Lipicure-10 tablets	99.82 ± 1.05	99.92 ± 0.85	0.65	1.53

^a Values are mean of five determinations ± SD.
^b The tabulated values at 95% confidence limit are 2.78 and 6.39, respectively.

ISSN: 2661-801X