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Incorporation of Cu-TATAB metal-organic framework within polyurethane nanocomposite for enhanced thin film microextraction of some chlorinated pesticides

Afsordeh, A ; Sharif University of Technology | 2024

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  1. Type of Document: Article
  2. DOI: 10.1016/j.chroma.2024.465061
  3. Publisher: 2024
  4. Abstract:
  5. In this research, electrospun nanofibers based on copper-based metal organic framework (MOF)/polyurethane (PU) were prepared in order to achieve an applicable and superior extractive phase. The incorporation of MOF, in the synthesized nanocomposite contributed to the enhanced sorption efficiency. The prepared sorbent was implemented for the thin film microextraction (TFME) of target compounds with subsequent quantification using gas chromatography-mass spectrometry (GC–MS). To obtain the maximum efficiency of the synthesized sorbent, the influential parameters on extraction and desorption steps, including the MOF percentage in nanocomposite, desorption solvent type and its volume, desorption time, solution ionic strength and extraction time were optimized. After method development, the linear dynamic range (0.02–700 μg L−1), limits of detection (LODs) (0.005–0.1 μg L−1) and limits of quantification (LOQs))0.02–0.33 μg L−1(were calculated. The relative standard deviations values for intra-day and inter-day analysis were found to be in the range of 4.3–5.3 % and 6.2–8.1 %, respectively. The developed method was validated for the TFME of model organochlorine (OC) pesticide residues in fish, soil and water samples. the recovery values for the spiked samples at two concentration levels of 5 and 100 µg l-1 were found in the range of 72–110 %. © 2024 Elsevier B.V
  6. Keywords:
  7. Electrospun nanofibers ; Organochlorine pesticides ; Thin film microextraction ; Adsorption ; Gas Chromatography-Mass Spectrometry ; Hydrocarbons, Chlorinated ; Metal-Organic Frameworks ; Nanocomposites ; Polyurethanes ; Solid Phase Microextraction ; Water Pollutants, Chemical ; Efficiency ; Extraction ; Film preparation ; Gas chromatography ; Ionic strength ; Mass spectrometry ; Nanocomposite films ; Nanofibers ; Organometallics ; Pesticides ; Thin films ; 4,4,4((1,3,5 triazine 2,4,6 triyl)tris(azanediyl)) tribenzoic acid ; Cu-TATAB ; Endosulfan ; Organochlorine pesticide ; Tetradifon ; Unclassified drug ; Chlorinated hydrocarbon ; Copper ; Metal organic framework ; Nanocomposite ; Pesticide ; Polyurethan ; Chlorinated pesticides ; Copper-based ; Metal organic framework/polyurethane nanocomposite ; Metalorganic frameworks (MOFs) ; Polyurethane nanocomposites ; Sorption efficiency ; Synthesised ; Brunauer Emmett Teller method ; Drug analysis ; Drug synthesis ; Electrospinning ; Energy dispersive X ray spectroscopy ; Flow rate ; Fourier transform infrared spectroscopy ; Ion monitoring ; Mass fragmentography ; Scanning electron microscopy ; X ray powder diffraction ; Chemistry ; Isolation and purification ; Limit of detection ; Procedures ; Water pollutant ; Desorption
  8. Source: Journal of Chromatography A ; Volume 1730 , 2024 ; 00219673 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0021967324004357