Table 3.
Retention time (tr, expressed as min), intraday and interday precision calculated as relative standard deviation (RSD) %, limit of detection (LOD) (ng·g−1), limit of quantification (LOQ) (ng g−1), and recovery (%) in blank and honey samples of each PAE and BP-A investigated in this study.
| Compound | Regr. Eq. 1 | Intraday 2 | Interday 2 | LOD | LOQ | Recovery 1 | |
|---|---|---|---|---|---|---|---|
| Blank | Honey | ||||||
| DMP | y = 0.616x + 0.215 | 2.2 | 2.6 | 6 | 9 | 97.9 ± 1.6 | 91.2 ± 3.5 |
| DEP | y = 0.875x + 0.356 | 2.6 | 4.1 | 5 | 11 | 99.3 ± 1.2 | 88.3 ± 4.2 |
| DiBP | y = 0.598x + 0.434 | 2.8 | 3.3 | 2 | 7 | 97.5 ± 1.9 | 89.4 ± 4.7 |
| DBP | y = 0.736x + 0.197 | 2.8 | 3.9 | 3 | 8 | 99.5 ± 2.1 | 96.1 ± 3.9 |
| BP-A | y = 0.569x + 0.283 | 11.6 | 17.6 | 11 | 16 | 89.4 ± 1.7 | 69.3 ± 7.8 |
| DEHP | y = 0.148x + 0.610 | 3.6 | 4.8 | 2 | 5 | 99.3 ± 2.1 | 98.8 ± 3.1 |
| DnOP | y = 0.259x + 0.532 | 3.5 | 4.2 | 4 | 10 | 98.9 ± 2.5 | 97.0 ± 2.9 |
1 Regression equation. 2 Repeatability and recoveries were studied spiking the honey samples with a mixture standard solution of phthalates and BP-A at concentration of 50 ng·g−1 each.