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Results of intra-day and inter-day precision (n = 6).
| Actual concentration μg.spot−1 | Intra-day |
Inter-day |
||
|---|---|---|---|---|
| Measured concentration μg.spot−1 | %RSD | Measured concentration μg.spot−1 | %RSD | |
| 250 | 248.349 ± 8.522 | 1.03 | 236.881 ± 8.299 | 1.801 |
| 500 | 510.322 ± 9.346 | 1.51 | 458.123 ± 11.261 | 1.123 |
| 750 | 763.111 ± 12.487 | 1.44 | 730.462 ± 22.559 | 1.591 |
RSD: Relative Standard Deviation.
