Pesticides are among the most important contaminants worldwide due to their wide use,
persistence, and toxicity. Their presence in soils is not only important from an environmental …

To achieve analytical success, it is necessary to develop thorough clean‐up procedures to
extract analytes from the matrix. Dispersive solid phase extraction (DSPE) has been used as …

A QuEChERS extraction followed by GC/MS/MS and GC-μECD/NPD for 216 pesticide and
metabolites determination in soil simultaneously were developed and compared. Volume of …

This study reports an innovative and sensitive procedure for analysis of difficult high polar
herbicides (HPH) in diverse foods of plant origin. The QuPPe (Quick Polar Pesticides) …

Many compounds are used for pest control during the production and storage of rice, making
it necessary to employ multiclass methods for pesticide residues determination. For this …

The aim of this study is to determine optimum extraction and clean up conditions for different
pesticide residues in milk and dairy products by using GC–MS. A Box-Behnken design with …

Clean extracts are essential in LC-MS/MS, since the matrix effect can interfere in the
analysis. Alternative materials which can be used as sorbents, such as chitosan in the clean …

Abstract A modified Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) sample
preparation method, coupled with liquid chromatography-electrospray ionization tandem …

The use of pesticides in agriculture has generated numerous consequences to the
environment, requiring analysis of the persistent residues in soil, water and air. The …

Preparing samples for analyses is perhaps the most important part to analyses. The varied
functional groups present on the surface of biopolymers bestow them appropriate adsorption …