Recoveries of the nanoprobe for the determination of mercury ions in drinking water and tap water samples (n = 5)^a.

Samples	Spiked (nM)	Found (nM)	Recovery (%)	RSD (%)
Drinking water	0	nd	—	—
	300	290.1	96.7	0.72
	600	612.5	102.1	1.13
	1000	968.5	96.85	1.05
Tap water	0	nd	—	—
	300	308.2	102.7	1.03
	600	615.5	102.6	1.24
	1000	998.7	99.87	1.45

^and: not detected.