Table 3.

Analytical figures of merit of the proposed MNPs based V- D-μ-SPE method for determination and extraction of IBF, FPC, MTC, and CZP.

Analyte	LDR (μg L−1)a	LOD (μg L−1)	LOQ (μg L−1)	r2	RSD% (within a day, n = 5)	RSD% (between day, n = 3)
MTC	1–800	0.32	1.08	0.9976	3.2	4.8
FPC	0.1–500	0.075	0.25	0.9998	2.4	3.6
IBF	1–600	0.27	0.9	0.9951	3.8	5.1
CZP	0.1–600	0.062	0.21	0.9996	2.9	3.2

^aConcentration in μg L⁻¹.