Improving the Isotretinoin Photostability by Incorporating in Microemulsion Matrix

Table 2

Regression analysis of calibration curve for isotretinoin (ITN) by the proposed UV spectrophotometric method (𝑛=5).

Parameters	ITN
Concentration range	5–40 𝜇g/mL
Slope	0.1115
Standard deviation of the slope	0.57×10^−4
Intercept	−0.1045
Standard deviation of the intercept	0.48×10^−3
Correlation coefficient	0.9998