Detection of Pesticide Residues (Fenitrothion) in Fruit Samples Based On Niobium Carbide@Molybdenum Nanocomposite: An Electrocatalytic Approach
2018; Elsevier BV; Volume: 1030; Linguagem: Inglês
10.1016/j.aca.2018.05.044
ISSN1873-4324
AutoresMani Govindasamy, Umamaheswari Rajaji, Shen‐Ming Chen, S. Kumaravel, Tse-Wei Chen, Fahad M.A. Al‐Hemaid, M. Ajmal Ali, Mohamed S. Elshikh,
Tópico(s)Advanced biosensing and bioanalysis techniques
ResumoWe have reported an effective electrochemical sensor for assorted pesticide (i.e., Fenitrothion). Exact tracking of these pesticides has become more important for protecting the environment and food resources owing to their high toxicity. Hence, the development of compatible sensors for the real-time detection of pesticides is imperative to overcome practical limitations encountered in conventional methodologies. In this regard, the role of the novel, advanced functional materials such as niobium carbide (NbC) supported on molybdenum nanoparticles (NbC@Mo) has drawn great consideration in conventional sensory systems because of their numerous advantages over other nanomaterials. The nanocomposite was characterized by XRD, XPS, HR-TEM, and EIS. Under optimized working conditions, the modified electrode NbC@Mo/SPCE responds linearly as 0.01-1889 μM concentration range and the detection limit is 0.15 nM. Most importantly, the method was successfully demonstrated in fruit samples.
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