Stability-Indicating High-Performance Thin-Layer Chromatographic Method for Quantitative Estimation of Emtricitabine in Bulk Drug and Pharmaceutical Dosage Form

Table 1

Linear regression data for the calibration curves (𝑛=6).

Parameters	Emtricitabine
Linearity range	30–110 ng spot^−1
𝑟^2	0.9997
Slope ± S.D*	26.12 ± 0.2805
Intercept ± S.D*	−241.9 ± 21.18
Confidence limit of slope^a	25.23 to 27.01
Confidence limit of intercept^a	−309.3 to −174.6
Sy.X	17.74

^∗𝑃<0.001—Slope significantly different from zero.
^a95% confidence limit.
Sy.X—Standard deviation of residuals from line.