scholarly journals Comparison of Different d-SPE Sorbent Performances Based on Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) Methodology for Multiresidue Pesticide Analyses in Rapeseeds

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6727
Author(s):  
Saida Belarbi ◽  
Martin Vivier ◽  
Wafa Zaghouani ◽  
Aude De Sloovere ◽  
Valerie Agasse ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Analytical Challenge ◽  
Quechers Method ◽  
Cellulosic Fibers ◽  
The Matrix ◽  
Primary Secondary Amine

Pesticide extraction in rapeseed samples remains a great analytical challenge due to the complexity of the matrix, which contains proteins, fatty acids, high amounts of triglycerides and cellulosic fibers. An HPLC-MS/MS method was developed for the quantification of 179 pesticides in rapeseeds. The performances of the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method were evaluated using different dispersive solid-phase extraction (d-SPE) sorbents containing common octadecylsilane silica/primary–secondary amine adsorbent (PSA/C18) and new commercialized d-SPE materials dedicated to fatty matrices (Z-Sep, Z-Sep+, and EMR-Lipid). The analytical performances of these different sorbents were compared according to the SANTE/12682/2019 document. The best results were obtained using EMR-Lipid in terms of pesticide average recoveries (103 and 70 of the 179 targeted pesticides exhibited recoveries within 70–120% and 30–70%, respectively, with low RSD values). Moreover, the limits of quantification (LOQ) range from 1.72 µg/kg to 6.39 µg/kg for 173 of the pesticides. Only the recovery for tralkoxydim at 10 μg/kg level was not satisfactory (29%). The matrix effect was evaluated and proved to be limited between −50% and 50% for 169 pesticides with this EMR-Lipid and freezing. GC-Orbitrap analyses confirmed the best efficiency of the EMR-Lipid sorbent for the purification of rapeseeds.

scholarly journals Dispersive Solid Phase Extraction for the Analysis of Veterinary Drugs Applied to Food Samples: A Review

2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
Gabriela Islas ◽  
Israel S. Ibarra ◽  
Prisciliano Hernandez ◽  
Jose M. Miranda ◽  
Alberto Cepeda
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Food Samples ◽  
Veterinary Drugs ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Solid Sorbent ◽  
Wide Range ◽  
The Matrix ◽  
Carbon Based Nanomaterials

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 pretreatment technique for the analysis of several compounds. This technique is based on the dispersion of a solid sorbent in liquid samples in the extraction isolation and clean-up of different analytes from complex matrices. DSPE has found a wide range of applications in several fields, and it is considered to be a selective, robust, and versatile technique. The applications of dispersive techniques in the analysis of veterinary drugs in different matrices involve magnetic sorbents, molecularly imprinted polymers, carbon-based nanomaterials, and the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method. Techniques based on DSPE permit minimization of additional steps such as precipitation, centrifugation, and filtration, which decreases the manipulation of the sample. In this review, we describe the main procedures used for synthesis, characterization, and application of this pretreatment technique and how it has been applied to food analysis.

scholarly journals Simultaneous determination of 223 pesticides in tobacco by GC with simultaneous electron capture and nitrogen-phosphorous detection and mass spectrometric confirmation

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Bozena Lozowicka ◽  
Ewa Rutkowska ◽  
Izabela Hrynko
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Mass Spectrometric ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Graphitized Carbon ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Primary Secondary Amine

AbstractLSE (liquid-solid extraction), MSPD (matrix solid phase dispersion) and QuEChERS (quick, easy, cheap, effective, rugged and safe) extractions followed by GC-μECD/NPD to determine 223 pesticide residues in tobacco simultaneously were developed and compared. The identities of ten model pesticides were confirmed by GC-MS/MS. The type and amount of dispersant (Florisil, silica gel and alumina), sample mass, cleanup adsorbent, and the eluent (hexane, acetone and acetonitrile) were optimized. Linearity, recovery, LOQ, LOD, and matrix effect were compared. Most recoveries were 71−120% (RSD < 18%). LOD and LOQ were much lower than the CORESTA GRLs. The best method was QuEChERS: acetonitrile extraction and dispersive solid-phase extraction using primary-secondary amine and graphitized carbon.

Development of an analytical method for pesticide residues in berries with dispersive solid phase extraction using multiwalled carbon nanotubes and primary secondary amine sorbents

2018 ◽  
Vol 10 (7) ◽  
pp. 757-766 ◽  
Author(s):  
Pengyue Zhao ◽  
Pedro J. J. Alvarez ◽  
Xuesheng Li ◽  
Canping Pan
Keyword(s):  
Carbon Nanotubes ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Residue Analysis ◽  
Phase Extraction ◽  
Pesticide Residue Analysis ◽  
Dispersive Solid Phase Extraction ◽  
Multiwalled Carbon ◽  
Primary Secondary Amine ◽  
Dispersive Spe

A dispersive SPE with PSA and MWCNTs as sorbent material was developed for pesticide residue analysis in berry samples.

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