Table 3.

Recovery results of DEHP added in different water samples with the aptasensor.

Samples	Spiked Concentration (μg·L−1)	Detected Concentration (μg·L−1)	RSD %	Recovery %
Tap water	0.03	0.031	2.74	101.77
	1.95	1.71	1.44	87.37
	500	462.59	1.57	92.52
Water from YB	0.03	0.043	1.69	141.32
	1.95	1.73	2.50	88.50
	500	488.44	2.54	97.69
Water from Qingshan Lake	0.03	0.026	2.15	85.70
	1.95	1.49	2.19	76.07
	500	481.22	0.55	96.24