Journal of Analytical Science and Technology

Table 4 Concentrations of three cephalosporin antibiotics in pharmaceutical wastewater samples

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

Sample number	Cefadroxil	Cefprozil	Cefradine
1	18.25 μg/mL	N.D	N.D
2	N.D	33.74 μg/mL	N.D
3	N.D	N.D	545.9 μg/mL^a
4	N.D	N.D	N.D
5	N.D	N.D	N.D

N.D not detected
^aThe concentration was obtained by sample dilution (one part sample to three parts pure water)

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