TABLE 2.
Comparison of different methods for Ag+ detection.
| Methods | Detection limits (ng/mL) | References |
| Atomic absorption and plasma emission spectrometry | 473 | 1 (20) |
| Atomic absorption spectrometry | 1.1 | 2 (21) |
| Flame atomic absorption spectroscopy | 4.6 | 3 (22) |
| Flame atomic absorption spectroscopy | 30 | 4 (23) |
| Fluorescence | 14 | 5 (24) |
| Fluorescence | 43 | 6 (25) |
| Fluorescence | 5 | 7 (26) |
| Fluorescence | 200 | 8 (27) |
| Colorimetry | 6.9 | 9 (28) |
| Colorimetry | 182 | 10 (29) |
| Electrochemical methods | 3.3 | 11 (30) |
| Electrochemical methods | 2.1 | 12 (31) |
| RRS | 6.3 | 13 (32) |
| RRS | 21.6 | 14 (33) |
| Spectrophotometry | 9.74 | Present work |
| RRS | 0.12 | Present work |