Table 5 Percent recovery of isotopically labeled standards in different water matrixes (n = 6)
Compound | Ultrapure water (1000Â ml) | Surface water (1000Â ml) | WWTP effluent (250Â ml) | |||
|---|---|---|---|---|---|---|
| Â | Recovery (%) | RSD (%) | Recovery (%) | RSD (%) | Recovery (%) | RSD (%) |
Carbamezapine d10 | 77 | 4.4 | 79 | 2.6 | 70 | 4.9 |
Caffeine 13C3 | 79 | 4.7 | 76 | 3.2 | 56 | 4.5 |
Trimethoprim d3 | 67 | 4.2 | 66 | 3.1 | 41 | 6.4 |
Sucralose d6 | 65 | 5.9 | 31 | 3.3 | 16 | 4.0 |
Primidone d5 | 81 | 3.1 | 71 | 4.0 | 74 | 4.3 |
Sulfamethoxazole 13C6 | 80 | 3.6 | 30 | 4.6 | 28 | 6.6 |
Atrazine d5 | 70 | 3.1 | 59 | 4.1 | 64 | 3.9 |
Fluoxetine d5 | 40 | 8.3 | 35 | 6.8 | 40 | 10.7 |
DEET d6 | 60 | 9.2 | 70 | 6.8 | 75 | 10.8 |
PFBA 13C4 | 15 | 2.1 | 13 | 3.4 | 10 | 5.2 |
Naproxen 13C1d3 | 87 | 4.5 | 94 | 3.6 | 75 | 6.2 |
Diclofenac 13C6 | 48 | 1.5 | 30 | 7.5 | 31 | 14.5 |
Ibuprofen d3 | 86 | 6.5 | 103 | 4.7 | 90 | 6.5 |
PFOA 13C4 | 90 | 3.1 | 115 | 14.3 | 104 | 0.3 |
Bisphenol A 13C12 | 92 | 6.9 | 70 | 7.8 | 83 | 11.0 |
Gemfibrozil d6 | 86 | 3.1 | 94 | 4.6 | 117 | 4.9 |
PFOS 13C4 | 83 | 4.2 | 78 | 7.7 | 81 | 5.7 |
Triclocarban 13C6 | 61 | 7.5 | 63 | 3.3 | 54 | 5.7 |
Triclosan d3 | 122 | 4.5 | 81 | 3.9 | 68 | 5.1 |