Fig. 2From: ELISA-based detection of gentamicin and vancomycin in protein-containing samplesCoating optimization. a The optimal concentration of the gentamicin-BSA hapten was based on the pattern of the calibration curve, which indicated a concentration dependant absorbance. b The optimal concentration of the vancomycin-BSA hapten was determined on the relation between coating concentration and absorbance levelBack to article page