Table 1.

Partial least square (PLS) calibration and prediction errors in the identification and quantitation of adulterants (Picual EVOO (extra-virgin olive oil), refined olive oil (ROO), and sunflower oil) in an Arbequina EVOO when using raw HPLC-UV (High performance liquid chromatography method with ultra-violet detection) chromatographic fingerprints as sample descriptors.

Acquisition Wavelength	Calibration Errors (%)
	Adulterant
	Picual EVOO	ROO	Sunflower Oil
257 nm	0.27	0.28	0.29
280 nm	0.19	0.33	0.37
316 nm	0.67	1.54	0.77
Acquisition Wavelength	Prediction Errors (%)
	Adulterant
	Picual EVOO	ROO	Sunflower Oil
257 nm	0.25	0.30	0.54
280 nm	0.41	0.33	0.48
316 nm	0.36	1.42	0.77