Table 1.

Analytical performance data of the calibration graphs for the determination of FVM, and IVM by the proposed methods

Analyte	FVM			IVM
Method	FFZD	FFR	DWZ	FFZD	FFR	DWZ
Wavelength (nm)	270	272–258	∆A 270–290	240	254–291	∆A 245–260
Linearity range (µg/mL)	5–40			2.5–25
LOD (µg/mL)a	0.7352	1.5306	0.4202	0.3995	0.0980	0.1213
LOQ (µg/mL)b	2.2279	4.6381	1.2732	1.2106	0.2971	0.3677
Regression coefficient	0.99929	0.99966	0.99963	0.99947	0.99997	0.99995
Slope	0.0025	0.2521	0.0145	0.0008	0.0483	0.0350
SE of slope	0.0001	0.0114	0.0002	0.00001	0.0002	0.0002
Intercept	− 0.0011	0.2284	0.0130	0.0001	-0.0249	0.0005
SE of intercept	0.0006	0.1169	0.0019	0.0001	0.0014	0.0013

^aLimit of detection

^bLimit of quantitation