Sol-gel TiO2/Carbon Paste Electrode Nanocomposites for Electrochemical-assisted Sensing of Fipronil Pesticide
Year: 2019
Type: article
Abstract: The unique study of TiO 2 sol-gel modified carbon paste electrode (CPE) nanocomposites have been developed for electrochemical sensor detecting fipronil pesticide compound.We develop the easy synthesized TiO 2 via a sol-gel method and modified in CPE which applied electrochemical system as cyclic voltammetry (CV) because the concentration is proportional with current peaks.We discover the TiO 2 optimal mass used of 0.1 g which is compared with 0.7 g carbon and 0.3 mL paraffin.It has high-current anodic (Ip a ) of 1.13×10 3 μA and high-current cathodic (Ip c ) -0.96×10 3 μA in scan rate of 0.5 V/s.The limit of detection (LOD) of fipronil has been determined of 34.0×10 -5 μM in percent recovery of 0.8%.Its high-stability for lifetime TiO 2 -CPE nanocomposites was expressed for 13 days which mean that can be used for detecting fipronil pesticide.
Authors: Maulidiyah Maulidiyah, Thamrin Azis, Lindayani Lindayani, Dwiprayogo Wibowo, La Ode Agus Salim, Andi Aladin, Muhammad Nurdin
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2997614968