Table 4.
Analytical results for the determination of phenols in seawater samples from the South China Sea and Wastewater
| Samples | Phenol | 4-NP | 2-NP | 2,4-DMP | 2,4-DCP |
|---|---|---|---|---|---|
| Yangpu | |||||
| Concentration (ng/mL) | ndc | nd | nd | nd | nd |
| Recoverya | 93.1 | 85.6 | 92.6 | 89.3 | 91.2 |
| RSD (%, n = 3) | 4.2 | 5.0 | 6.8 | 5.1 | 4.9 |
| Baishamen | |||||
| Concentration (ng/mL) | nd | nd | nd | nd | nd |
| Recoveryb | 95.1 | 89.6 | 94.2 | 88.6 | 95.4 |
| RSD (%, n = 3) | 6.4 | 5.9 | 6.8 | 7.1 | 8.2 |
| Holiday beach | |||||
| Concentration (ng/mL) | nd | nd | nd | nd | nd |
| Recoveryb | 81.6 | 85.4 | 87.3 | 81.9 | 80.3 |
| RSD (%, n = 3) | 5.9 | 6.8 | 7.1 | 6.9 | 8.3 |
| Wastewater | |||||
| Concentration (ng/mL) | 3.64 ± 0.17 | nd | nd | nd | nd |
| Recoveryb | 85.3 | 84.1 | 85.6 | 90.5 | 82.6 |
| RSD (%, n = 3) | 5.9 | 6.8 | 7.1 | 6.9 | 8.3 |
aSpiked with phenols at 10.0 ng/mL
bSpiked with phenols at 100.0 ng/mL
cnd = not detected. Three parallel experiments were conducted for each sample