Table 1. LOD Value Obtained Is Compared with Some of the Recently Published Data Obtained by Colorimetric Method Using Functionalized Silver Nanoparticles in Aqueous Media.
| material used to functionalized AgNPs | metal ion detecteda | LOD (nM) | linear range (μM) | ref |
|---|---|---|---|---|
| VP and ILP | Hg2+** | 1000 | 1–10 | (51) |
| N-cholyl-lcysteine | Hg2+ | 8 | 0.005–0.2 | (52) |
| citrate | Hg2+ | 17 | 0.025–0.5 | (53) |
| glutamine and histidine | Hg2+ | 900 | 100–1000 | (54) |
| melamine | Hg2+*** | 1800 | 10–100 | (55) |
| trisodium citrate | Hg2+ | 3.3 | 0.01–0.5 | (49) |
| trisodium citrate | Hg2+ | 3 | 0.003–0.5 | (24) |
| cysteamine | Hg2+ | 0.273 | 0.0002–0.013 | (56) |
| extract of soap-root plant | Hg2+ | 2200 | 0–100 | (57) |
| calix[4]arene derivative | Hg2+ | 0.5 | 0.0003–0.01 | this study |
a
Metal ion other than Hg2+ detected: **Cd2+ and Pb2+; *** Cr3+.