Table 2.

The limit of detection (LOD) comparison for Hg²⁺ determination using the proposed AgNPs method with the previously reported method

Method	Probe	LOD (mg/L)	References
ICP-MS	–	2.10 × 10–5	[39]
CV-AAS	–	4.85 × 10–6	[31]
Ligand spectrophotometry	Dithizone	0.078	[6]
	Rhodamine B	3.21 × 10–6	[16]
Nanomaterials spectrophotometry	AuNPs capped by histidine	3.55 × 10–4	[10]
	AuNP using S. aromaticum extract	0.002	[8]
	AuNP capped by dithioerythritol	4.81 × 10–5	[17]
	AgNPs capped by carrageenan	0.059	[25]
	AgNPs using apple fruit extract	0.017	[11]
	AgNPs using A. bispores extract	0.401	[33]
	AgNPs-chitosan	1.330	[4]
	AgNPs using C. canephora fruit skin extract	0.039	Present work