Research Article
Environmental Sample Stability for Pharmaceutical Compound Analysis: Handling and Preservation Recommendations
Table 2
Evaluation of the intraday and interday precision (reproducibility) levels of the method.
| | Compounds of interest | Intraday (n = 6) | Interday (n = 12) | | Mean concentration ± SD (mg·L−1) | RSD (%) | Mean concentration ± SD (mg·L−1) | RSD (%) |
| | ACM | 8.5 ± 0.1 | 1.28 | 8.4 ± 0.3 | 3.31 | | TMP | 9.8 ± 0.2 | 1.28 | 9.9 ± 0.2 | 1.99 | | OTC | 8.7 ± 0.1 | 1.39 | 8.4 ± 0.6 | 7.12 | | SMX | 9.7 ± 0.1 | 0.78 | 9.7 ± 0.2 | 1.83 | | EE2 | 8.1 ± 0.3 | 3.43 | 8.0 ± 0.2 | 2.94 |
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