Table 1.
The fitting parameters and coefficients of determination for the calibration plots over the wide concentration range, separated by six weeks.
| Calibration | (mV) | S (mV/dec) | R 2 |
|---|---|---|---|
| 1 | −2.5 | −57.0 | 1.0000 |
| 2 | 1.5 | −57.9 | 1.0000 |
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