Fig. 3From: A Novel Conductometric Urea Biosensor with Improved Analytical Characteristic Based on Recombinant Urease Adsorbed on Nanoparticle of SilicaliteDependence of value of biosensor response to urea concentration on various concentrations of buffer solution (1 2.5 mM, 2 5 mM, 3 10 mM, 4 25 mM). Measurements were carried out in phosphate buffer, pH 7.35Back to article page