Electrochemical response characteristics of the proposed sensor.
| Parameter | Responsea | |
|---|---|---|
| Concentration range (M) | 1.00 × 10−2 to 6.00 × 10−6 | |
| Linearity | Slope (mV per decade) | 58.86 |
| Intercept (mV) | 549.78 | |
| Correlation coefficient | 0.9985 | |
| Accuracy (mean ± SD) | 101.59 ± 0.971 | |
| Precision | Repeatabilityb (% RSD) | ±1.574 |
| Intermediate precisionc (% RSD) | ±2.119 | |
| LODd (M) | 3.60 × 10−6 M | |
| Response time (s) | 8 | |
| Working pH range | 2–10 | |
| Stability (days) | 30 | |
a
Average of five determinations.
b
The intraday (n = 3), an average of three different concentrations repeated three times within the day.
c
The interday (n = 3), an average of three different concentrations repeated three times in three successive days.
d
Limit of detection calculated according to the IUPAC recommendations.