Table 1. The recovery of FL-containing water samples detected by using the thin core-shell molecularly imprinted fluorescent nanosensor.

Samples	Test	FL added (nM)	FL detected* (nM)	Recovery (%)
MiniQ water	1	0	0.2 ± 0.03	—
	2	30	27.7 ± 1.6	92.2 ± 5.6
	3	60	57.5 ± 1.3	95.8 ± 2.3
	4	120	123.3 ± 6.9	102.8 ± 5.6
	5	500	425.1 ± 39.3	85.0 ± 9.3
Tap water	1	0	0.1 ± 0.04	—
	2	30	34.7 ± 3.6	115.5 ± 10.3
	3	60	62.7 ± 3.6	104.4 ± 5.7
	4	120	124.6 ± 2.1	103.8 ± 1.6
	5	500	405.7 ± 45.6	81.1 ± 11.2
Taihu Lake water 1	1	0	0.2 ± 0.04	—
	2	30	33.3 ± 1.8	111.1 ± 5.3
	3	60	63.3 ± 1.7	105.5 ± 2.7
	4	120	128.6 ± 6.3	107.2 ± 4.7
	5	500	400.3 ± 22.5	80.1 ± 5.5
Taihu Lake water 2	1	0	0.2 ± 0.1	—
	2	30	34.2 ± 3.2	113.9 ± 9.4
	3	60	61.5 ± 5.3	101.7 ± 8.7
	4	120	128.6 ± 7.2	107.2 ± 0.9
	5	500	417.8 ± 33.3	83.4 ± 7.9
Taihu Lake water 3	1	0	0.3 ± 0.1	—
	2	30	33.1 ± 2.1	110.2 ± 6.3
	3	60	62.3 ± 4.9	103.8 ± 7.8
	4	120	124.9 ± 5.9	104.1 ± 3.9
	5	500	410.2 ± 57.8	82.1 ± 14.1

^*Average of three measurements.