Title of article :
Determination of Rutin in Black Tea Samples using a Nanostructure Amplified Electroanalytical Sensor
Author/Authors :
Davarnia ، Bahareh Department of Food Science and Technology - Islamic Azad University, Ayatollah Amoli Branch , Shahidi ، Ahmad Department of Food Science and Technology - Islamic Azad University, Ayatollah Amoli Branch , Ghorbani-HasanSaraei ، Azade Department of Food Science and Technology - Islamic Azad University, Ayatollah Amoli Branch , Karimi ، Fatemeh Department of Chemical Engineering, Laboratory of Nanotechnology - Quchan University of Technology
Abstract :
Ag nanoparticle and 1buthyl3methyl imidazolium bromide (1B3MIBr) carbon paste electrode(Ag/NP/1B3MIBr/CPE) amplified sensor was fabricated for determination of rutin in this project. The electrooxidation of rutin occurs at a potential about 0.4 V at the surface of Ag/NP/1B3MIBr/CPE and this value is less positive than the unmodified CPE. pH = 7.0 was selected as an optimize condition for all of electrochemical investigations in this work and for evaluating electrochemical parameters such as diffusion coefficient (5.0 × 106 cm2/s). At the optimized condition for rutin analysis, the differential pulse voltammetry (DPV) peak currents of rutin show a wide linear dynamic range from 0.05320 μM with a detection limit of 10 nM. Finally, the Ag/NP/1B3MIBr/CPE was used for determination of rutin in soy samples with good selectivity and high sensitivity.
Keywords :
Rutin analysis , Ag Nanoparticles , Electrochemical food sensor , Modified electrode
Journal title :
Advanced Journal of Chemistry-Section A: Theoretical, Engineering and Applied Chemistry
Journal title :
Advanced Journal of Chemistry-Section A: Theoretical, Engineering and Applied Chemistry
