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Table 7 Analysis of ATR-Ca in its tablets by the reported and proposed methods

From: Use of response surface methodology for development of new microwell-based spectrophotometric method for determination of atrovastatin calcium in tablets

Tablet Content (% ± SD)a t-Valueb F-valueb
Proposed method Reported method
Lipitor tablets 99.24 ±1.21 99.78±0.68 0.87 3.16
Lipicure–10 tablets 98.89± 1.62 99.10±1.73 0.20 1.14
  1. a Values are mean of five determinations ± SD.
  2. b The tabulated values at 95% confidence limit are 2.78 and 6.39, respectively.