Single-Drop Microextraction for Sampling Pesticides in Vegetables
Researchers from the University of Thessaly (Volos, Greece) used a single-drop microextraction technique with gas chromatography (GC) and nitrogen?phosphorus and electron-capture detection to analyze pesticides in vegetables.
Researchers from the University of Thessaly (Volos, Greece) used a single-drop microextraction technique with gas chromatography (GC) and nitrogen–phosphorus and electron-capture detection to analyze pesticides in vegetables. They tested various mixtures of solvents and water dilutions and optimized the extraction procedure parameters organic solvent type, drop volume, agitation, and exposure time. They studied the extraction efficiency in fortified tomato and courgette samples and examined the matrix effects. The method was found to be successful for pesticide residue analysis in real vegetable samples with submicrogram-per-kilogram detection limits.
RAFA 2024 Highlights: Contemporary Food Contamination Analysis Using Chromatography
November 18th 2024A series of lectures focusing on emerging analytical techniques used to analyse food contamination took place on Wednesday 6 November 2024 at RAFA 2024 in Prague, Czech Republic. The session included new approaches for analysing per- and polyfluoroalkyl substances (PFAS), polychlorinated alkanes (PCAS), Mineral Oil Hydrocarbons (MOH), and short- and medium-chain chlorinated paraffins (SCCPs and MCCPs).
Pharmaceutical excipients, such as polyethylene glycol-based polymers, must be tested for the presence of ethylene oxide (EtO) and 1,4-dioxane as part of a safety assessment, according to USP Chapter <228>.
