Colorimetric Detection Based on Localized Surface Plasmon Resonance Optical Characteristics for Sensing of Mercury Using Green-Synthesized Silver Nanoparticles

Table 1

Estimation of Hg²⁺ concentration in real water samples using the fabricated SNPs as a sensor.

Sample	Spiked (μM)	Recovery (%)	RSD (%) n = 3
Ground water	300	97.8	5.97
	600	98. 6	4.82
	900	93.5	3.84
Tap water	300	95.2	5.88
	600	97.4	4.76
	900	92.1	1.59

RSD = relative standard deviation.