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| No. | Concentration (μg mL−1) | Recovery% ± SD | Er% | RSD% |
|---|---|---|---|---|
| 1 | 0.1 | 99.30 ± 1.79 | −0.70 | 1.80 |
| 2 | 1.0 | 100.12 ± 0.59 | 0.12 | 0.58 |
| 3 | 2.0 | 100.18 ± 0.35 | 0.18 | 0.35 |
The value is the mean of three replicate measurements, SD is the standard deviation, RSD is the relative standard deviation, and Er% is the relative error percentage.
