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Table 6 Precision and accuracy of the proposed assay at different ATR-Ca concentrations

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

Concentration (μg/well) Relative standard deviation
Intra-day, n=5 Inter-day, n=5
Found (μg/well) % RSD Found (μg/well) % RSD
80 80.60 ± 1.28 1.59 80.75 ± 0.99 1.24
120 120.5 ± 0.85 0.71 120.34 ± 1.11 0.92
180 181.04 ± 1.93 1.07 180.42 ± 1.37 0.76