Table 6.

Analytical figures of merit of the spectrophotometric method and PLS1, PCR and HLA regressions.

		THEO			MKST			LORA
Parameters	PLS1	PCR	HLA	PLS1	PCR	HLA	PLS1	PCR	HLA
SEN	0.119	0.127	0.018	0.062	0.069	0.040	0.081	0.083	0.022
SEL	0.464	0.498	0.072	0.178	0.198	0.114	0.342	0.350	0.094
LOD	0.03	0.03	0.18	0.06	0.05	0.09	0.05	0.05	0.10
γ −1	0.010	0.010	0.059	0.020	0.016	0.030	0.016	0.016	0.033

The unit of SEN is (AU. L.mg^–1) that AU is absorbance unit, unit of γ (L mg^–1) and unit of γ^–1 and LOD (mg L^–1).