Research Info

Title
Voltammetric determination of isoproterenol using a 5-amino-2′,4′-dimethoxybiphenyl-2-ol modified carbon nanotube paste electrode
Type Article
Keywords
Isoperoterenol; Carbon nanotube; Electrocatalysis; Voltammetry
Abstract
A new electrochemical sensor for determination of isoproterenol (IP) is described. The sensor is based on carbon paste electrode (CPE) modified with 5-amino-2′,4′-dimethoxybiphenyl-2-ol (5ADMB) and takes the advantages of carbon nanotubes (CNTs). Under the optimum pH of 7.0, the oxidation of IP occurs at a potential about 210 mV less positive than that of the unmodified CPE. The oxidation currents increased linearly with two concentration intervals of IP, one is 0.09 to 20.0 μmol/L and, the other is 20.0 to 400.0 μmol/L. The detection limit (3σ) obtained by square wave voltammetry (SWV) was 39.0 nmol/L. The practical application of the modified electrode was demonstrated by determining IP in IP ampoule, urine and human blood serum samples.
Researchers Hadi Beitollahi (First researcher)
Hojatollah Khabazzadeh (Second researcher)
Hassan Karimi-Maleh (Third researcher)
ali akbari (Fourth researcher)