Polyaniline/Graphene Nanocomposite as a Promising Sorbent for Dispersive Solid Phase Extraction of Avermectins from Citrus Fruit Juice

摘要: A solid phase extraction sorbent based on polyaniline/graphene nanocomposite is presented. The structure and morphology of synthesized were investigated by Fourier transform infrared spectroscopy, field emission scanning electron microscopy, X-ray diffraction thermal gravimetric analysis. dispersive was employed to the isolation preconcentration avermectins insecticide (mixture B1a B1b). procedure high performance liquid chromatography-UV detection. demonstrated a favorable analytical for detection with reasonable linear ranges (1.5-1000 μg L-1 5.0-1000 B1b in order) acceptable limits (0.5 2.5 B1b) under optimized conditions. efficiency compared graphene, polyaniline, carbon nanotube C18 sorbents. Moreover, applicability proposed method assessed analyte from citrus fruit juice.