Research Article
Micelle-Mediated Extraction Prior to LC-UV for Preconcentration and Determination of Trace Amounts of Bisphenol A in Environmental Samples
Table 2
OA16 (45) experimental design for the optimization of CPE of BPA.
| Trial no. | pH | % Surfactant | Ionic strength (mol L−1) | Temperature (°C) | Organic solvent volume (µL) |
| 1 | 6 | 0.3 | 0.01 | 50 | 75 | 2 | 5 | 0.1 | 0.5 | 50 | 50 | 3 | 4 | 0.05 | 0.1 | 50 | 125 | 4 | 3 | 0.3 | 0.5 | 60 | 125 | 5 | 3 | 0.1 | 0.1 | 40 | 75 | 6 | 5 | 0.3 | 0.1 | 30 | 100 | 7 | 3 | 0.2 | 0.25 | 50 | 100 | 8 | 5 | 0.05 | 0.25 | 60 | 75 | 9 | 4 | 0.2 | 0.5 | 30 | 75 | 10 | 5 | 0.2 | 0.01 | 40 | 125 | 11 | 6 | 0.1 | 0.25 | 30 | 125 | 12 | 3 | 0.05 | 0.01 | 30 | 50 | 13 | 4 | 0.3 | 0.25 | 40 | 50 | 14 | 6 | 0.05 | 0.5 | 40 | 100 | 15 | 6 | 0.2 | 0.1 | 60 | 50 | 16 | 4 | 0.1 | 0.01 | 60 | 100 |
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