Magnetic dispersive micro solid-phase extraction and gas chromatography determination of organophosphorus pesticides in strawberries
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چکیده
منابع مشابه
Multiresidue determination of organophosphorus pesticides in corn oil using solid-phase extraction with lanthanum silicate sorbent and gas chromatography
Phosalone, malathion and diazinon were analyzed in corn oil using solid phase extraction (SPE)with lanthanum silicate as a new solid sorbent followed by gas chromatography with nitrogenphosphorus detection (GC-NPD). The efficiency of different eluents (methanol, dichloromethane,ethyl acetate, dichloromethane — ethyl acetate (1:1) and ethyl acetate — methanol (1:1)) werecompared for elution of o...
متن کاملmultiresidue determination of organophosphorus pesticides in corn oil using solid-phase extraction with lanthanum silicate sorbent and gas chromatography
phosalone, malathion and diazinon were analyzed in corn oil using solid phase extraction (spe)with lanthanum silicate as a new solid sorbent followed by gas chromatography with nitrogenphosphorus detection (gc-npd). the efficiency of different eluents (methanol, dichloromethane,ethyl acetate, dichloromethane — ethyl acetate (1:1) and ethyl acetate — methanol (1:1)) werecompared for elution of o...
متن کاملComparison of disposable pipette extraction and dispersive solid-phase extraction in the QuEChERS method for analysis of pesticides in strawberries.
In this study, we sought to assess the applicability of GC-MS/MS for the identification and quantification of 36 pesticides in strawberry from integrated pest management (IPM) and organic farming (OF). Citrate versions of QuEChERS (quick, easy, cheap, effective, rugged and safe) using dispersive solid-phase extraction (d-SPE) and disposable pipette extraction (DPX) for cleanup were compared for...
متن کاملDetermination of volatile N-nitrosamines in meat products by microwave-assisted extraction coupled with dispersive micro solid-phase extraction and gas chromatography – Chemical ionisation mass spectrometry
A sensitive procedure, microwave-assisted extraction (MAE) coupled dispersive micro solid-phase extraction (D-l-SPE), was developed to extract N-nitrosodimethylamine (NDMA) and other six volatile N-nitrosamines (NAms) from meat products. Parameters affecting the efficiency of MAE and D-l-SPE were systematically investigated. For MAE, 5-g of a homogenised meat sample was extracted with 30 mL of ...
متن کاملDetermination of dialkyl phosphate metabolites of organophosphorus pesticides in human urine by automated solid-phase extraction, derivatization, and gas chromatography-mass spectrometry.
Organophosphorus (OP) pesticides are highly toxic but used commonly worldwide, nevertheless. Their urinary dialkylphosphate (DAP) metabolites are widely used for exposure assessment of OP pesticides in humans. We previously developed an analytical method to measure urinary DAPs utilizing solid-phase extraction (SPE)-derivatization-gas chromatography-tandem mass spectrometry (GC-MS-MS) with quan...
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ژورنال
عنوان ژورنال: Journal of Chromatography A
سال: 2018
ISSN: 0021-9673
DOI: 10.1016/j.chroma.2018.06.045