PMID- 36508768 OWN - NLM STAT- MEDLINE DCOM- 20221227 LR - 20221230 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1687 DP - 2023 Jan 4 TI - Application of electrospun composite nanofibers as an efficient sorbent for extraction of pesticides from food samples. PG - 463699 LID - S0021-9673(22)00890-1 [pii] LID - 10.1016/j.chroma.2022.463699 [doi] AB - Herein, the composite of polylactic acid (PLA)/ Iron-based metal-organic framework (r-MIL-88A)/ Cellulose electrospun nanofibers was fabricated; and then, applied as a novel sorbent for thin-film micro-extraction (TFME) of four selected pesticides followed by GC-FID analysis. From the evaluation of scanning electron microscopy, Fourier transform infrared spectroscopy energy dispersive X-ray spectroscopy and X-ray diffraction, the successful fabrication of composite nanaofibers was approved. The presence of r-MIL-88A/Cellulose with large surface area and plenty of OH-functional groups results in improving PLA extraction efficiency. The effect of various main parameters on extraction efficiency was evaluated. The LODs (based on S/N = 3) were in the range of 1.0 to 1.5 ng mL(-1). Intra-day and inter-day relative standard deviations (RSDs) were in the range of 4.8% - 5.6% and 5.2%-6.4%, respectively. In addition, the fiber to fiber relative standard deviations were observed in the range of 5.2%-12.3%. By using the optimized factors, acceptable linearity ranges were obtained in the range of 3.0-1900.0 ng mL(-1) for metribuzin and ethofumasate, and 5.0-2000.0 for atrazine and ametryn (R(2) = 0.9913-0.9967). The developed method was investigated in fruit juice, vegetables, milk and honey samples, and recoveries (79.3-95.6%) indicate that the PLA/r-MIL-88A/Cellulose can be a prominent composite film for the extraction of the target analytes in various samples. CI - Copyright (c) 2022. Published by Elsevier B.V. FAU - Vosough, Sahar AU - Vosough S AD - Department of Analytical Chemistry and Pollutants, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, Iran. FAU - Amini, Shima AU - Amini S AD - Department of Analytical Chemistry and Pollutants, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, Iran. FAU - Ebrahimzadeh, Homeira AU - Ebrahimzadeh H AD - Department of Analytical Chemistry and Pollutants, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, Iran. Electronic address: h-ebrahim@sbu.ac.ir. FAU - Kandeh, Saeed Hejabri AU - Kandeh SH AD - Department of Analytical Chemistry and Pollutants, Faculty of Chemistry and Petroleum Sciences, Shahid Beheshti University, Tehran, Iran. LA - eng PT - Journal Article DEP - 20221205 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Pesticides) RN - 0 (Metal-Organic Frameworks) RN - 0 (Polyesters) RN - 9004-34-6 (Cellulose) SB - IM MH - *Nanofibers/chemistry MH - *Pesticides/analysis MH - *Metal-Organic Frameworks MH - Polyesters/analysis MH - Cellulose MH - Limit of Detection MH - Solid Phase Extraction/methods OTO - NOTNLM OT - Agricultural pesticides OT - Composite nanofibers OT - Food analysis OT - Metal organic frame work OT - Thin-film micro-extraction COIS- Declaration of Competing Interest The authors declare that they have no competing interests. EDAT- 2022/12/13 06:00 MHDA- 2022/12/28 06:00 CRDT- 2022/12/12 18:13 PHST- 2022/10/19 00:00 [received] PHST- 2022/11/30 00:00 [revised] PHST- 2022/12/02 00:00 [accepted] PHST- 2022/12/13 06:00 [pubmed] PHST- 2022/12/28 06:00 [medline] PHST- 2022/12/12 18:13 [entrez] AID - S0021-9673(22)00890-1 [pii] AID - 10.1016/j.chroma.2022.463699 [doi] PST - ppublish SO - J Chromatogr A. 2023 Jan 4;1687:463699. doi: 10.1016/j.chroma.2022.463699. Epub 2022 Dec 5.