Authors
Benyamin Aliakbari, Shima Amini, Homeira Ebrahimzadeh, Saeed Hejabri Kandeh
Publication date
2023/9
Journal
Chemical Papers
Volume
77
Issue
9
Pages
5213-5225
Publisher
Springer International Publishing
Description
Herein, a thin film based on poly (vinyl alcohol) (PVA) modified with citric acid (CA)/graphene oxide (GO)/cellulose was electrospun and characterized. The fabricated nanofibers were applied in thin-film micro-extraction (TFME) of two pesticides in food sample (watermelon, milk, honey, melon, tomato) and agricultural water followed by corona discharge ionization ion mobility spectrometry (CD-IMS) analysis. From the evaluation of scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction, the successful fabrication of the composite nanofibers was approved. The introduction of cellulose with a large number of OH-functional groups not only improves the GO properties but also increases the composite extraction efficiency. The efficacy of several key parameters (salt effect, adsorption time, sample pH, eluent sort, agitation speed, time of desorption and size of sorbent) on the analytes …
Total citations
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