Table 1.
Comparison of statistical features between uncoated and coated sensors for a water sample collected in a mining area spiked with Cu using the standard addition method. Reproduced from [74], Creative Commons Attribution 4.0 International License. LoD: limit of detection.
| R2 |
CV (dB) |
Sensitivity (ΔdB/mg/L) |
LoD (mg/L) |
Q-Factor | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| UNC | f-EM | UNC | f-EM | UNC | f-EM | UNC | f-EM | UNC | f-EM | |
| Peak 0 | 0.970 | 0.928 | 0.20 | 0.25 | 0.362 | 0.222 | 0.194 | 0.379 | / | / |
| Peak 1 | 0.963 | 0.981 | 0.02 | 0.03 | 0.354 | 0.260 | 0.146 | 0.409 | 2.60 | 6.57 |
| Peak 2 | 0.888 | 0.983 | 0.01 | 0.02 | 0.824 | 1.651 | 0.083 | 0.036 | 30.71 | 135.48 |