Determination of Residual Nonsteroidal Anti-Inflammatory Drugs in Aqueous Sample Using Magnetic Nanoparticles Modified with Cetyltrimethylammonium Bromide by High Performance Liquid Chromatography

Table 1

Analytical characteristics of SPE based on CATB-coated MNP_s for the determination of nonsteroidal anti-inflammatory drugs.

Analyte	LOD (ngmL^−1)^a	𝑅^2	Regression equation	LDR (ngmL^−1)^b	PF	ER%
DICLO	7	0.997	𝐴=1.042𝐶 (𝜇gL^−1) + 2.537	10–200	36.70	91.76
INDO	2	0.996	𝐴=3.939𝐶 (μgL^−1) − 9.662	2.5–400	38.49	96.24
IBU	3	0.999	𝐴=2.128𝐶 (μgL^−1) − 6.848	5–400	37.74	94.36
NAP	2	0.999	𝐴=1.514𝐶 (μgL^−1) − 1.325	10–400	38.04	95.11

aLimit of detection.
^bLinear dynamic range.