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

Table 2

Assay results for prediction of training set (autoprediction) and independent test set of CEF by PLSR and linear SVR chemometric models.

Training set	PLSR		Linear SVR
Taken (µg mL^−1)	Found (µg mL^−1)	%	Found (µg mL^−1)	%
18	18.577	103.21	18.629	103.50
18	18.029	100.16	18.136	100.76
20	19.850	99.25	19.920	99.60
20	19.889	99.44	19.980	99.90
26	26.114	100.44	26.110	100.42
20	19.899	99.49	19.971	99.85
18	17.897	99.43	17.980	99.89
24	23.737	98.90	23.754	98.97
24	23.997	99.99	23.980	99.92
20	19.727	98.63	19.775	98.87
24	24.005	100.02	23.980	99.92
18	18.089	100.50	18.116	100.65
26	26.236	100.91	26.143	100.55
26	25.919	99.69	25.980	99.92
24	24.118	100.49	24.181	100.76
26	25.917	99.68	25.980	99.92
Mean (%)		100.01		100.21
SD		1.050		1.036
RMSEC		0.2306		0.1960
Test set	PLSR		Linear SVR
Taken (µg mL^−1)	Found (µg mL^−1)	%	Found (µg mL^−1)	%
25	25.443	101.77	25.320	101.28
19	19.069	100.36	19.067	100.35
22	22.357	101.62	22.278	101.27
21	21.403	101.92	21.330	101.57
23	23.515	102.24	23.397	101.73
25	25.630	102.52	25.440	101.76
19	19.294	101.55	19.238	101.25
22	22.432	101.96	22.296	101.35
21	21.603	102.87	21.493	102.35
Mean (%)		101.87		101.43
SD		0.7082		0.5359
RMSEP		0.4457		0.3386