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Analysis of glyphosate residue in liver by UPLC-MS/MS
a solid phase extraction (SPE) on a Weak Anion Exchange cartridge. The glyphosate is eluted by basified methanol and then dried with a nitrogen stream. One milliliter of water is added in the tube before ...
Analysis of chlormequat residue in milk by UPLC-MS/MS
precipitate protein, respectively. This step was followed by a solid phase extraction (SPE) of the aqueous phase on a Weak Cation Exchange cartridge. The chlormequat was eluted by using ammonium acetate, before ...
Clean up strategy for the analysis of PAH in food of animal origin
clean-up step. Phenyl and C18 cartridges were used as chemical filters: the DACC Acetonitrile eluate was directly loaded. In the opposite, normal phase such as silica and SupeIMIP® required a solvent ...
How safe are your infusions? Analysis of pyrrolizidine alkaloids in plant based products using UHPLC-MS/MS & highlighting of their transfer rate during brewing.
hand, tea samples were brewed following ISO3103 standardized method, the infusion was then purified using C18 SPE cartridges. Several analytical steps were optimized in order to obtain the highest ...