Comparative phytochemical profiling and authentication of four Artemisia species using integrated GC-MS, HPTLC and NIR spectroscopy approach

Table 3 Multivariate calibration parameters and performance results of PLSR models of cultivated A. annua and each of the Egyptian wild Artemisia species as adulterants

Adulterants	NS	LV	Regression equation	R²	Calibration		Cross validation		Test (Prediction)		RPD	LOD (%)	LOQ (%)
Adulterants	NS	LV	Regression equation	R²	R²	RMSEC	R²	RMSECV	R²	RMSEP	RPD	LOD (%)	LOQ (%)
A. herba-alba	56	5	Y = X − 1.345*10^− 6	0.9981	0.999	0.776981	0.998	0.967116	0.9976	0.867754	3.11	0.6508–1.2998	1.9525–3.8993
A. monosperma	56	6	Y = X + 2.464*10^− 7	0.999	0.999	0.563299	0.999	0.688643	0.9985	0.660015	3.24	0.7184–1.0825	2.1553–3.2474
A. judaica	56	6	Y = X – 2.835*10^− 7	0.9959	0.999	1.13708	0.995	1.14821	0.9966	0.964232	3.01	0.6902–1.4333	2.0706–4.2998

ISSN: 2661-801X