This application presents a fast, easy, and cost-effective method for the determination of 24 pesticide residues in red wine. Sample preparation involves the extraction of pesticides from red wine using the QuEChERS extraction method (AOAC version). The samples then undergo cleanup by dispersive solid-phase extraction (dSPE) using primary secondary amine (PSA) sorbent, which effectively retains...

This paper describes an efficient and effective analytical scheme to first screen for 300 pesticides in fruit and vegetables samples using liquid chromatography tandem mass spectrometry (LC-MS/MS) with a commercially enhanced product ion method. Then presumed positive extracts are analysed using a quantitative and confirmatory LC-MS/MS method optimized for 55 pesticides. A quick, easy, cheap, e...

A modified, quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction procedure combined with sonication Ultra-High Performance Liquid Chromatography–Orbitrap-Mass Spectrometry (UHPLC–Orbitrap-MS) was developed as a sensitive reliable methodology for the determination of multiclass pesticides in full-fat milk. Different amounts EMR-lipid sorbent were assayed cleanup step order to ac...

QuEChERS is a Quick-Easy-Cheap-Effective-Rugged-Safe extraction method that has been developed for the determination of pesticide residues in agricultural commodities. The European Standard is Method EN 15662:2008. While originally developed for plant matrices, the technique has since been adapted to be used in several applications and in many additional matrices. The rise in popularity of the ...

This application note describes a method for the simultaneous detection of 21 plant growth regulators in fruits by QuEChERS combined with an HPLC-ESI-MS/MS technique based on our previous work [1]. The samples were initially extracted with acetonitrile containing 1 % acetic acid, followed by cleanup using C18 sorbent in the presence of magnesium sulfate. The resultant solution was separated on ...

Cucumber is one of the main vegetables in Iranian food basket. A wide range of pesticides are used for crops protection during the cultivation of vegetables such as cucumber due to heavy pest infestation. Analysis of pesticide residues in food and other environmental commodities have become essential requirement for consumers, producers, and food quality control authorities. This study was aime...

A fast and simple modified QuEChERS extraction method was developed for determination of Benzo[a]pyrene (BaP) in 137 traditional (Sangak), semi-industrial (Sangak) and industrial bread samples using spiked calibration curves by GC/MS. Sample preparation includes extraction of BaP into acetone followed by cleanup with dispersive solid phase extraction. The limit of detection and limit of quantif...

A modified QuEChERS method coupled with ultra-high-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was established for the simultaneous determination of eight biogenic amines (BAs) in Xinjiang smoked horsemeat sausages. The conditions UPLC-MS/MS, extraction solvent and purification were optimized. internal standard used quantitative analysis. Results showed that BAs exhi...