Search results - 30 results
Per- and polyfluoroalkyl substances in food and beverages: determination by LC-HRMS and occurrence in products from the Belgian market.
effective, rugged, and safe” (QuEChERS) protocol and combined with a two-step purification using solid-phase extraction (SPE) was optimised. The quantitative analysis was performed by liquid chromatography ...
Simultaneous Detection and Quantification of Aflatoxin M1, Eight Microcystin Congeners and Nodularin in Dairy Milk by LC-MS/MS
extracted with methanol 80%, followed by an SPE clean-up step before LC- MS / MS analysis. The LOQ was fixed at 1 µg/L for the nine cyanotoxins and 0.05 µg/L for AFM1. Recoveries were measured between 82.67% ...
Development of a reliable UHPLC-MS/MS method for simultaneous determination of zearalenone and zearalenone-14-glucoside in various feed products
impurities and enriching the target analytes in different feeds. The critical parameters affecting the performance of the solid-phase extraction (SPE) procedure were carefully optimized, and 20% acetonitrile ...
Development and Validation of a UHPLC-ESI-MS/MS Method for Quantification of Oleandrin and Other Cardiac Glycosides and Evaluation of Their Levels in Herbs and Spices from the Belgian Market
included oleandrin, digoxin, digitoxin, convallatoxin, and ouabain. Samples of culinary herbs were extracted with acetonitrile and cleaned using Oasis® MAX solid-phase extraction (SPE), while samples of ...
Analysis of mineral oil in food: An analytical challenge
http://www.rafa2019.eu/book_of_abstracts.html Keywords: Market survey Mineral oil MOSH/MOAH offline SPE online LC-GC Abstract: Mineral oil can enter the food chain in many different ways: (i) as a contaminant via e.g. environment or lubricants ...
Modular Method for the Determination of Polycyclic Aromatic Hydrocarbons in Spices and Dried Herbs by Gas Chromatography–Tandem Mass Spectrometry
consists of dividing this matrix group into three subclasses: regular spices,highly pigmented matrices and complex mix of spices/fatty spices. Depending on the subclass, SPE sorbent is adapted to ...
Dietary exposure to pyrrolizidine alkaloids in young children and adults from the Belgian population (PASFOOD)
methods was required to detect the presence of PA s at ppb or even ppt levels. Analytical methods based on analytes extraction and SPE purification, followed by UPLC separation and MS / MS detection were ...
Detection of pyrrolizidine alkaloids in milk and honey on the Belgian market using UHPLC-MS/MS.
The sample preparation involves acidic extraction of the analytes followed by SCX- SPE purification to avoid loss of sensitivity due to matrix effect. Several parameters were optimized in order to ...
Application of LC-MS/MS MRM to Determine Staphylococcal Enterotoxins (SEB and SEA) in Milk.
Online solid-phase extraction liquid chromatography electrospray ionization tandem mass spectrometry (online SPE- LC- ESI- MS / MS) based on multiple reaction monitoring (MRM) was used to detect and ...
Biological activity conferred by endocrine disrupting chemicals in hospital effluent and river water from the Brussels Region, Belgium
collected in Brussels WWTP South (in- and effluent). Samples were filtered and extracted using Oasis HLB SPE columns. Values ranged from 0.77 to 1.85ng EEQ /L for the Zenne river water, 98ng EEQ /L for ...