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Table 5 Factorial design for experiments employed for cephalosporins adsorption and results obtained using HPLC-UV assay

From: Removal and tracing of cephalosporins in industrial wastewater by SPE-HPLC: optimization of adsorption kinetics on mesoporous silica nanoparticles

Run pH Initial concentration (g/L) Adsorbent loading dose (g/L) Cefadroxil removal (%) Cefprozil removal (%) Cefradine removal (%)
1 6 0.11 1 54.4 58.3 55.3
2 6 0.11 1 55.2 59.3 54.23
3 4 0.02 1.5 43.6 47.01 41.2
4 8 0.2 1.5 35.4 33.54 34.8
5 6 0.11 1 55.9 60.25 53.89
6 4 0.2 0.5 38.12 38.2 37.2
7 8 0.02 0.5 32.2 30.15 29.3