Table II.

The Methodology Parameters and the Calibration Plots of the Reference Method (n = 6)

Compounds	t R (min)	Regression equation	R 2	Linearity range (μg/mL)	LOD (μg/mL)	Repeatability RSD%	Recovery %
HG	36.091		0.9999	2.55–30.60	0.05	1.13	99.39
CA	39.462		0.9999	3.44–41.25	0.09	1.21	99.75
AT	29.681		0.9999	6.78–81.45	0.16	0.92	99.75
ARC	32.196		0.9998	3.55–42.60	0.07	1.00	99.85