Determination of Cefoperazone Sodium in Presence of Related Impurities by Linear Support Vector Regression and Partial Least Squares Chemometric Models

Table 1

Concentration design matrices in µg mL⁻¹ for the 4-level 3-factor experimental design, showing 16 training set mixtures together with the 9 test set mixtures.

Training set			Test set
CEF	7-ACA	5-MER	CEF	7-ACA	5-MER
18	0.13	0.065	25	0.17	0.09
18	0.15	0.07	19	0.14	0.07
20	0.15	0.09	22	0.18	0.075
20	0.2	0.07	21	0.14	0.08
26	0.15	0.065	23	0.15	0.065
20	0.13	0.085	25	0.2	0.085
18	0.18	0.085	19	0.13	0.08
24	0.18	0.07	22	0.16	0.07
24	0.15	0.085	21	0.16	0.08
20	0.18	0.065
24	0.13	0.09
18	0.2	0.09
26	0.2	0.085
26	0.18	0.09
24	0.2	0.065
26	0.13	0.07