Analyte	Added concentration(ng·mL−1)	Extraction recovery
ATV	1	91.69±6.19
	5	100.82±9.02
	12	93.20±3.78
o-ATV	1	71.23±4.43
	5	70.01±4.88
	12	69.18±0.05
p-ATV	0.5	87.10±5.35
	1	77.48±5.38
	5	75.09±5.25