Determination of seven pesticide residues in Mimosa scabrella honeydew honey from Brazil by GC-MS

New sorbent-based hydrophobic alginic acid derivatives for fat removal in multi-pesticide residues: analysis of a fatty food sample

“…The QuEChERS (quick, easy, cheap, effective, rugged, and safe) method is a recent and widely used method used to extract pesticide residue from foodstuff, 21 but it does not measure the fat content and is not able to clean the sample extractor of the fat content. 22 Therefore, we aimed to synthesize a hydrophobic alginic acid to be used as a sorbent clean-up material to be then used in the pesticide residue detection of a fatty food sample. Initially, the chemical modication of alginic acid was conducted using ecofriendly ultrasound-assisted esterication with different alcoholic hydrocarbon chains.…”