Table 2: OA16 (45) experimental design for the optimization of CPE of BPA.

Trial no.pH% SurfactantIonic strength (mol L−1)Temperature (°C)Organic solvent volume (µL)

160.30.015075
250.10.55050
340.050.150125
430.30.560125
530.10.14075
650.30.130100
730.20.2550100
850.050.256075
940.20.53075
1050.20.0140125
1160.10.2530125
1230.050.013050
1340.30.254050
1460.050.540100
1560.20.16050
1640.10.0160100