Fig. 3From: Design of experiments and white analytical chemistry-driven green and sensitive spectrofluorimetric estimation of pregabalin in its pharmaceutical dosage forms and spiked human plasmaDoE-based response surface analysis of critical method variables and responses using central composite design and Minitab 18 software. A 3D contour plot showing multidimensional interactions between critical procedure variables A and B with fluorescence intensity—Response R1. B 3D contour plot showing multidimensional interactions between critical method variables A and B with % recoveries—Response R2. C Analytical design space for desirable maximum fluorescence intensity and %recovery of PGBBack to article page