Loading...

Preparation and evaluation of various banana-based biochars together with ultra-high performance liquid chromatography-tandem mass spectrometry for determination of diverse pesticides in fruiting vegetables

Keikavousi Behbahan, A ; Sharif University of Technology | 2021

915 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.foodchem.2021.130085
  3. Publisher: Elsevier Ltd , 2021
  4. Abstract:
  5. Biomass, originates from plant- or animal-based materials with a huge potential to be reused. Here we report a simple, rapid and inexpensive method for preparation of modified biochars derived from the banana peel followed by their applications in pipette-tip micro solid-phase extraction (PT-µSPE). Due to the contribution of various effective parameters on modification of banana peel biochars (BPBs), Taguchi design was used to optimize activation temperature, activation repetition, treatment material and impregnation ratio. Efficiency of the prepared BPBs were studied by extraction of twelve various pesticides, as model analytes with an extended range of log P values (1.4–5.7), followed by their determination using ultra-high performance liquid chromatography-tandem mass spectrometry. After finding the most suitable BPB, the affecting parameters on the PT-µSPE performance were optimized. Accordingly, the LOD values of 0.03–10 µg L−1, linear dynamic range of 0.1–200 µg L−1 and a range of RSD values of 5.3–19% were obtained. Eventually, five fruiting vegetables were analyzed and screened for their possible contaminations. Among the tested pesticides, chlorpyrifos, diazinon, malathion, phosalone, propargite and thiophanate-methyl were detected in eggplant, sweet pepper, zucchini and tomato. © 2021 Elsevier Ltd
  6. Keywords:
  7. Chemical activation ; Extraction ; Fruits ; High performance liquid chromatography ; Mass spectrometry ; Pesticides ; Vegetables ; Banana peels ; Bio chars ; Effective parameters ; Fruiting vegetable ; Microsolidphase extraction ; Pipette tips ; Pipette-tip micro solid-phase extraction ; Simple++ ; UHPLC-MS/MS ; Ultra-high performance liquid chromatography/tandem mass spectrometries ; Phase separation ; Chlorpyrifos ; Dimpylate ; Malathion ; Pesticide ; Pesticide residue ; Phosalone ; Propargite ; Thiophanate methyl ; Unclassified drug ; Aubergine ; Banana ; Chemical modification ; Controlled study ; Data analysis software ; Food contamination ; Fruit peel ; Liquid chromatography-mass spectrometry ; Nonhuman ; Process design ; Process optimization ; Residue analysis ; Solid phase microextraction ; Sweet pepper ; Ultra performance liquid chromatography ; Zucchini ; Chemistry ; Cucumber ; Fruit ; Isolation and purification ; Limit of detection ; Metabolism ; Musa ; Principal component analysis ; Procedures ; Solid phase extraction ; Tomato ; Vegetable ; Charcoal ; Chromatography, High Pressure Liquid ; Cucumis sativus ; Lycopersicon esculentum ; Tandem mass spectrometry ; Temperature ; Biochar
  8. Source: Food Chemistry ; Volume 360 , 2021 ; 03088146 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0308814621010918