Table 4.
Determination of β-blockers and anticonvulsants, fluoroquinolones and parabens in real water samples (n = 3).
| Samples | Analytes | Initial (ng L−1) | Found (ng L−1) a | %R | %RSD | Found (ng L−1) b | %R | %RSD |
|---|---|---|---|---|---|---|---|---|
| Influent | β-blockers, anticonvulsants | ND-28.9 | 42.7–72.1 | 86.3–94.4 | 2.8–4.5 | 93.3–118 | 87.8–93.3 | 1.6–3.4 |
| Fluoroquinolones | ND-7.33 | 4.87–12.1 | 93.8–97.3 | 3.9–4.2 | 19.1–33.9 | 92.8–100 | 3.7–4.3 | |
| Parabens | 1.37–937 | 46.2–984 | 89.7–94.3 | 2.3–3.1 | 92.7–1078 | 91.3–96.1 | 2.6–3.5 | |
| Effluent | Β-blockers, anticonvulsants | ND-7.65 | 48.4–55.4 | 95.4–98.7 | 3.1–4.3 | 95.5–105 | 96.8–97.1 | 1.7–4.9 |
| Fluoroquinolones | ND-2.07 | 4.92–6.88 | 96.2–98.3 | 2.4–3.2 | 19.3–21.3 | 94.4–98.1 | 2.1–3.1 | |
| Parabens | ND-43.1 | 48.7–92.7 | 97.3–99.1 | 1.9–2.4 | 96.5–141 | 96.5–97.9 | 1.8–2.8 | |
| Tap water | β-blockers, anticonvulsants | ND | 48.9–49.6 | 97.7–99.1 | 2.6–3.5 | 98.9–99.5 | 98.0–99.5 | 2.0–4.0 |
| Fluoroquinolones | ND | 4.91–4.98 | 98.1–99.6 | 1.4–1.8 | 19.8–19.9 | 98.9–99.5 | 1.7–1.8 | |
| Parabens | ND-4.81 | 49.0–53.8 | 97.9–99.3 | 1.9–2.4 | 97.8–104 | 97.8–99.3 | 1.3–1.6 | |
| River water | β-blockers, anticonvulsants | ND-4.92 | 49.5–53.3 | 97.0–98.9 | 2.2–4.2 | 99.1–102 | 97.0–99.1 | 1.7–2.9 |
| Fluoroquinolones | ND-3.12 | 4.94–8.02 | 94.8–98.7 | 1.9–2.5 | 19.4–22.4 | 95.6–96.3 | 1.0–1.4 | |
| Parabens | ND-40.1 | 48.5–88.8 | 96.6–98.8 | 1.7–2.4 | 97.1–137 | 96.6–98.2 | 1.3–1.9 |
a Samples spiked with 5 ng L−1 for fluoroquinolones and 50 ng L−1 for β-blockers, anticonvulsants and parabens. b Samples spiked with 20 ng L−1 for fluoroquinolones and 100 ng L−1 for β-blockers, anticonvulsants and parabens.