Fig. 9From: Poly(4-amino-3-hydroxynaphthalene-1-sulfonic acid) modified glassy carbon electrode for square wave voltammetric determination of amoxicillin in four tablet brandsCorrected for blank SWVs of poly(AHNSA)/GCE in pH 5.5 PBS containing 50 µmol L−1 AMX tablet sample in the presence of a ampicillin, and b cloxicillin of various concentrations (0, 25, 50, 75, and 100 µmol L−1)Back to article page