Table 4.
Sample | Added (ng L−1) |
Found (ng L−1) |
Recovery (%) |
Sample | Added (ng L−1) |
Found (ng L−1) |
Recovery (%) |
---|---|---|---|---|---|---|---|
Tap water | 0 | / | / | River water | 0 | 9.3 ± 1.2 | / |
50 | 48.7 ± 3.1 | 97.4 | 50 | 57.4 ± 3.7 | 96.2 | ||
200 | 189 ± 8 | 94.5 | 200 | 201 ± 9 | 95.9 | ||
1000 | 993 ± 12 | 99.3 | 1000 | 987 ± 16 | 97.8 | ||
Waste water | 0 | 181 ± 14 | / | Lake water | 0 | 2.6 ± 0.5 | / |
50 | 228 ± 19 | 94.0 | 50 | 48.9 ± 4.2 | 92.6 | ||
200 | 374 ± 23 | 96.5 | 200 | 179 ± 9 | 88.2 | ||
1000 | 1132 ± 47 | 95.1 | 1000 | 960 ± 21 | 95.7 |