Table 2.

The analytical method parameters and extraction recovery of antimicrobials in soil samples at three concentrations (n = 6).

Analyte	Linear range (ng g−1)	R2,a	LODb (ng g−1)	LOQc (ng g−1)	Concentration (ng g−1)	CV(%)d	RE(%)e	MEf (%)	Recovery ± SD (%)
TC	0.5–500	0.9990	0.17	0.5	10	5.23	3.63	9.77	62.3 (6.8)
					100	4.25	2.19	9.67	91.8 (7.7)
					250	1.22	2.08	9.40	88.3 (12.5)
OTC	0.5–500	0.9996	0.17	0.5	10	4.98	−4.12	9.22	90.4 (2.8)
					100	3.59	−3.25	7.81	89.0 (3.3)
					250	2.41	−1.07	7.50	82.3 (12.0)
DOX	0.5–500	0.9963	0.17	0.5	10	2.15	−3.87	10.30	82.1 (4.5)
					100	1.24	−2.45	8.20	92.6 (3.9)
					250	1.10	− 1.23	7.11	90.4 (13.1)
SMX	0.5–500	0.9996	0.17	0.5	10	6.78	5.26	8.65	63.0 (9.9)
					100	4.52	4.11	5.67	61.1 (7.6)
					250	3.91	2.32	2.94	59.9 (7.1)
SFD	0.5–500	0.9997	0.17	0.5	10	7.45	6.54	5.22	69.8 (5.5)
					100	6.35	4.92	4.78	68.3 (7.6)
					250	2.17	2.14	3.51	64.4 (9.4)
CIP	0.5–500	0.9996	0.17	0.5	10	5.93	−4.97	4.80	77.3 (6.4)
					100	4.72	−3.25	4.47	76.4 (1.5)
					250	3.45	−2.14	3.11	69.6 (7.6)
LVF	0.5–500	0.9946	0.17	0.5	10	4.58	−3.65	10.0	77.0 (10.0)
					100	3.19	−2.78	9.07	69.7 (2.9)
					250	2.08	−1.12	7.40	77.2 (8.0)
ENF	0.5–500	0.9961	0.17	0.5	10	2.63	6.32	9.19	68.1 (10.3)
					100	1.47	5.24	8.04	85.5 (8.8)
					250	1.05	4.17	6.87	80.0 (8.3)
MET	0.5–500	0.9992	0.17	0.5	10	3.69	3.56	5.28	57.3 (8.0)
					100	2.41	2.41	5.04	64.9 (5.8)
					250	2.32	1.72	3.28	62.8 (8.0)
TRI	0.5–500	0.9960	0.17	0.5	10	6.27	−6.27	7.21	71.0 (6.7)
					100	5.30	−5.32	6.99	85.4 (6.8)
					250	1.47	−4.12	4.42	80.7 (7.0)
VAN	0.5–500	0.9997	0.17	0.5	10	4.78	−6.35	7.53	95.5 (2.4)
					100	3.25	−4.78	5.74	90.3 (6.4)
					250	2.96	−2.54	3.79	95.9 (12.3)
TYL	0.5–500	0.9996	0.17	0.5	10	5.63	3.25	9.01	91.3 (7.3)
					100	4.21	2.14	8.15	88.4 (5.8)
					250	3.14	1.36	4.48	95.3 (6.9)
CLR	0.5–500	0.9956	0.17	0.5	10	7.89	−5.41	6.04	75.7 (6.2)
					100	6.32	−4.32	4.88	88.6 (12.1)
					250	4.28	−1.67	4.02	80.1 (5.8)
CLD	0.5–500	0.9988	0.17	0.5	10	3.89	6.38	6.55	80.3 (3.5)
					100	3.24	4.72	5.88	84.8 (9.8)
					250	1.46	2.93	4.15	89.3 (7.9)

^aR²—coefficient of determination.

^bLOD—limit of detection.

^cLOQ—limit of quantification.

^dCV—coefficient of variation.

^eRE—relative error.

^fME—matrix effect.