SFE Clean-Up of Olive Oil Samples for Herbicide Analysis
Researchers at the University of Castilla-La Mancha (Spain), Ecole Nationale des Sciences Appliquees (Agadir, Morocco), and Institut Agronomique et Veterinaire Hassan II (Agadir, Morocco) developed a method for screening paraquat and diquat in olive oil samples.
Researchers at the University of Castilla-La Mancha (Spain), Ecole Nationale des Sciences Appliquees (Agadir, Morocco), and Institut Agronomique et Veterinaire Hassan II (Agadir, Morocco) developed a method for screening paraquat and diquat in olive oil samples. The method involves supercritical fluid extraction (SFE) before continuous flow electrochemical detection. Samples that exhibit total concentrations close to or above a 0.05-g/g threshold limit are then analyzed by liquid chromatography with diode-array detection.
Analytical Challenges in Measuring Migration from Food Contact Materials
November 2nd 2015Food contact materials contain low molecular weight additives and processing aids which can migrate into foods leading to trace levels of contamination. Food safety is ensured through regulations, comprising compositional controls and migration limits, which present a significant analytical challenge to the food industry to ensure compliance and demonstrate due diligence. Of the various analytical approaches, LC-MS/MS has proved to be an essential tool in monitoring migration of target compounds into foods, and more sophisticated approaches such as LC-high resolution MS (Orbitrap) are being increasingly used for untargeted analysis to monitor non-intentionally added substances. This podcast will provide an overview to this area, illustrated with various applications showing current approaches being employed.
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).
