Title of article :
A gallic acid food electrochemical sensor based on amplification of paste electrode by Cdo/CNTs nanocomposite and ionic liquid
Author/Authors :
Abdi ، Rostam 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 , Naghizadeh Raeisi ، Shahram 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 :
Gallic acid is one of the most abundant phytochemical in nature with anticancer activity against the prostate cancer. In this research work, carbon paste electrode (PE) modified with CdO/CNTs nanocomposite and 1-hexyl-3-methyl imidazoliume bromide (HMIZBr) design and made-up for determination of gallic acid in food samples. Electrochemical behavior of gallic acid at the CdO/CNTs/HMIZBr/PE was investigated in aqueous solution using the voltammetric methods. The gallic acid oxidation signal was improved about 2.82 times on the surface of the CdO/CNTs/HMIZBr/PE compared with that of the PE. Using differential pulse voltammetric method as sensitive strategy, the CdO/CNTs/HMIZBr/PE showed linear dynamic range 0.004-500 μM with detection limit of 0.9 nM to determine the gallic acid. In addition, real sample analysis data showed the powerful ability of the CdO/CNTs/HMIZBr/PE to determine the gallic acid in white rice.
Keywords :
Food analysis , Modified sensor , CdO , CNTs nanocomposite , Gallic acid
Journal title :
Journal of Medicinal and Chemical Sciences
Journal title :
Journal of Medicinal and Chemical Sciences
