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Table 3 Assay parameters and method validation obtained by applying the proposed HPLC-UV method

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

Parameters Cefadroxil Cefprozil Cefradine
Concentration range (μg/mL) 10–200 10–200 10–200
Slope 0.0257 0.0142 0.013
Intercept 0.0315 0.0031 0.0222
Meana ± SD 99.71 ± 1.58 100.47 ± 1.55 99.73 ± 0.70
LOD (μg/mL) 3 4 3
LOQ (μg/mL) 10 10 10
R 2 0.9997 0.9995 0.9999
Accuracy 99.75 ± 1.01 99.90 ± 0.77 100.21 ± 0.246
Inter-day precisionb 0.490 0.535 0.603
Intra-day precisionb 0.620 1.127 0.675
  1. aAverage of the six concentrations repeated three times
  2. bRelative standard deviation of the three concentrations (50, 100, and 150 μg mL− 1) repeated three times (n = 9)