Author/Authors :
Juban، Kakai Bellaliza B نويسنده 1Department of Physical Sciences and Mathematics, College of Arts and Sciences University of the Philippines Manila, Padre Faura, Ermita, Manila 1000, Philippines Juban, Kakai Bellaliza B , Billones، Junie B نويسنده Department of Physical Sciences and Mathematics, College of Arts and Sciences University of the Philippines Manila, Padre Faura, Ermita, Manila 1000, Philippines Billones, Junie B
Abstract :
Poly-(threonine) film modified carbon paste electrode was successfully fabricated through electropolymerization technique and was applied to investigate the electrochemical behaviors of hypoxanthine (HX) and xanthine (Xa) using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The oxidation peak currents for HX and Xa were strong, well resolved, and linear over the range of 8×10-6 M to 1×10-3 M. The limits of detection for HX and Xa by DPV were found to be 0.10mM and 0.08mM, respectively