Table 4 Analytical performance data for the removal of selected phenolic compounds using UV–Vis spectrophotometry
Analytes | Regression equation | R2 | Spiked concentrations (mg L−1) | Intraday (n = 5) | Inter-day (n = 6) | ||
|---|---|---|---|---|---|---|---|
Removal (%) | RSD (%) | Removal (%) | RSD (%) | ||||
BPA | y = 0.0156x + 0.040 | 0.9997 | 1 | 64.33 | 1.85 | 67.59 | 4.20 |
10 | 69.34 | 0.71 | 69.14 | 1.36 | |||
60 | 68.39 | 1.21 | 67.12 | 0.74 | |||
2,4-DNP | y = 0.0157x + 0.0709 | 0.9999 | 1 | 86.76 | 0.12 | 87.45 | 3.91 |
10 | 89.42 | 1.13 | 89.33 | 4.23 | |||
60 | 88.63 | 1.18 | 87.82 | 1.83 | |||
2,4-DCP | y = 0.0282x + 0.1438 | 0.9992 | 1 | 75.55 | 3.54 | 74.35 | 1.96 |
10 | 77.61 | 1.27 | 78.06 | 1.47 | |||
60 | 75.78 | 1.66 | 76.91 | 3.65 | |||