Fig. 1From: Design of experiment-driven stability-indicating RP-HPLC method for the determination of tofacitinib in nanoparticles and skin matrixa, b represent the 3D response curve and 2D contour plots for response 1, i.e., retention time; c, d represent the 3D response curve and 2D contour plots for response 2, i.e., tailing factorBack to article page