Optimized Extraction Method for Kleeb Bua Daeng Formula with the Aid of the Experimental Design

Figure 2

Diagnostic plot for model adequate checking of percentage extraction yield (%), TPC, TFC, TCC, and TAC: (a) normal % probability against internally studentized residuals, (b) internally studentized residuals against predicted, and (c) internally studentized residuals against run number.

(a)

(b)

(c)