Exploring a novel silicone surfactant-based deep eutectic solvent functionalized magnetic iron particles for the extraction of organophosphorus pesticides in vegetable samples. (1st December 2022)

• Record Type: Journal Article
• Authors: Elencovan, Vasagee; Yahaya, Noorfatimah; Raoov, Muggundha; Zain, Nur Nadhirah Mohamad
• Is Part Of: Food chemistry. Volume 396(2022)
• Publication Date: 2022-12-01
• Subjects: OPPs organophosphorus pesticides -- DES deep eutectic solvent -- SS silicone surfactant -- DoAc dodecanoic acid -- MSPE magnetic solid phase extraction -- MRL maximum residue limits -- EU European Union -- QuEChERS quick easy cheap effective rugged and safe -- GC–MS gas chromatography-mass spectrometry -- HBA hydrogen bond acceptor -- HBD hydrogen bond donor -- PEG polyethylene glycol -- FT-IR fourier transform-infrared spectroscopy -- SEM scanning electron microscope -- TEM transmission electron microscopy -- BET Brunauer–Emmett–Teller -- VSM Vibrating sample magnetometer -- XRD X-ray diffraction -- LOD limit of detection -- LOQ limit of quantification -- RR relative recovery; Silicone surfactant -- Deep eutectic solvent -- Magnetic iron particles -- Organophosphorus pesticides -- Vegetables; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2022.133670
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: Silicone surfactant-based deep eutectic solvent functionalized magnetic iron particles were first prepared. The adsorbent exhibited superior affinity and selectivity toward target organophosphorus pesticides (OPPs). The MSPE combined with GC–MS was successfully applied to detect target OPPs in vegetable samples. Abstract: The current study discussed the use of silicone surfactant-based deep eutectic solvent as a surface modifier for magnetic iron particles (Fe3 O4 ) to produce a novel adsorbent and its application for the extraction of organophosphorus pesticides (OPPs) in vegetable samples. A deep eutectic solvent (DES) was prepared using low toxic and inexpensive substances such as silicone surfactant (SS) and dodecanoic acid (DoAc). This new eco-friendly SS:DoAc based DES was explored as a substitution to traditional organic reagents for surface modification of Fe3 O4 to increase the adsorption capacity and to reduce the matrix interferences, hazardous waste generation and environmental pollution. The newly synthesized SS:DoAc@Fe3 O4 adsorbent was successfully characterized and applied in magnetic solid phase extraction (MSPE). Under optimized conditions, the proposed approach exhibited excellent linearity ranging from 0.1 to 200 µg/kg (R 2 ≥ 0.9970), low detection limit (0.03–0.1 µg/kg) and acceptable relative recovery (80–119 %) for the studied OPPs.