Recovery of the proposed aptasensor.

Sample	Added (ng mL−1)	Found (ng mL−1), n = 3	RSD (%)	Recovery (%)
1	0	No found	—	—
2	10.0	10.40	3.28	104.0
		10.64		106.4
		9.97		99.7
3	50.0	50.12	1.32	100.2
		49.75		99.5
		48.85		97.7
4	100.0	104.71	3.27	104.7
		98.18		98.2
		102.62		102.6