| چکیده انگلیسی مقاله |
Profenofos (PFF) is a highly toxic organophosphate insecticide, necessitating the development of rapid and sensitive detection methods. In this study, we developed an electrochemical sensor based on anatase TiO₂-modified graphene (G/TiO₂ anatase) for the efficient detection of PFF. Characterization using SEM, XRD, and FTIR confirmed the successful formation of anatase-phase TiO₂ nanoparticles on graphene sheets. Electrochemical performance evaluation via cyclic voltammetry demonstrated that the G/TiO₂ anatase electrode exhibited superior redox behavior compared to bare graphene and TiO₂ nanoparticles. The sensor achieved a low limit of detection (LOD) of 0.046 µg/L and a limit of quantification (LOQ) of 0.153 µg/L, within a linear detection range of 0.1–0.9 µg/L. Additionally, it showed excellent repeatability, with a relative standard deviation (%RSD) of 2.48%. These findings highlight the potential of G/TiO₂ anatase as a highly sensitive and reliable electrochemical sensor for PFF detection. The proposed sensor provides a rapid, simple, and efficient alternative for direct PFF analysis, which could be beneficial for environmental monitoring and food safety applications. |
| نویسندگان مقاله |
Bromo Kusumo Achmad |
Doctoral student of Agricultural Sciences, Universitas Halu Oleo
Kendari, Indonesia - 93232
Muhammad Nurdin |
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93232-Southeast Sulawesi, Indonesia
Andi Khaeruni |
Department of Plant Protection, Faculty of Agriculture, Universitas Halu Oleo, Kendari 93232–Southeast Sulawesi, Indonesia
Ramadhan Tosepu |
Deparment of Health Administration, Faculty of Public Health, Universitas Halu Oleo, Kendari 93232–Southeast Sulawesi, Indonesia
Gusti Ayu Kade Sutariati |
Department of Agrotechnology, Faculty of Agriculture, Universitas Halu Oleo, Kendari 93232–Southeast Sulawesi, Indonesia
Nur Santy Asminaya |
Faculty of Animal Science, Universitas Halu Oleo, Kendari 93232–Southeast Sulawesi, Indonesia
Maulidiyah Maulidiyah |
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93232-Southeast Sulawesi, Indonesia
Sartiah Yusran |
Faculty of Public Health, Universitas Halu Oleo, Kendari 93232–Southeast Sulawesi, Indonesia
Nohong Nohong |
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Halu Oleo, Kendari 93232-Southeast Sulawesi, Indonesia
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