A novel electrochemical nicotine sensor based on cerium nanoparticles with anionic surfactant

摘要

A novel promising electrochemical nicotine (NIC) sensor was prepared by electrodeposition of Ce-nanoparticles on a carbon paste electrode (CPE). Electrochemical techniques including cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM) and Energy Dispersive X-ray Analysis (EDX) techniques, in both aqueous and micellar media were used. NIC measurements were investigated in Britton-Robinson (B-R) buffer solutions with a pH range (2.0-8.0) containing (1.0 mM) sodium dodecyl sulfate (SDS). The linear response range of the sensor was between 4 x 10(-6) M and 5 x 10(-4) M with a detection limit of 9.43 x 10(-8) M. Good results were achieved for the detection of NIC in real samples and with different brands of commercial cigarettes.