Table 5.
Percent recovery of isotopically labeled standards in different water matrixes (n = 6)
|
Compound |
Ultrapure water (1000 ml) |
Surface water (1000 ml) |
WWTP effluent (250 ml) |
|||
|---|---|---|---|---|---|---|
| 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 |