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 Fast and Easy Multiresidue Method Employing Acetonitrile Extraction/Partitioning and “Dispersive Solid-Phase Extraction” for the Determination of Pesticide Residues in Produce

2003 ◽  
Vol 86 (2) ◽  
pp. 412-431 ◽  
Author(s):  
Michelangelo Anastassiades ◽  
Steven J Lehotay ◽  
Darinka Štajnbaher ◽  
Frank J Schenck
Keyword(s):  
Solid Phase Extraction ◽  
Pesticide Residues ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry ◽  
Residual Water ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Wide Range ◽  
Dispersive Spe

Abstract A simple, fast, and inexpensive method for the determination of pesticide residues in fruits and vegetables is introduced. The procedure involves initial single-phase extraction of 10 g sample with 10 mL acetonitrile, followed by liquid–liquid partitioning formed by addition of 4 g anhydrous MgSO4 plus 1 g NaCl. Removal of residual water and cleanup are performed simultaneously by using a rapid procedure called dispersive solid-phase extraction (dispersive-SPE), in which 150 mg anhydrous MgSO4 and 25 mg primary secondary amine (PSA) sorbent are simply mixed with 1 mL acetonitrile extract. The dispersive-SPE with PSA effectively removes many polar matrix components, such as organic acids, certain polar pigments, and sugars, to some extent from the food extracts. Gas chromatography/mass spectrometry (GC/MS) is then used for quantitative and confirmatory analysis of GC-amenable pesticides. Recoveries between 85 and 101% (mostly >95%) and repeatabilities typically <5% have been achieved for a wide range of fortified pesticides, including very polar and basic compounds such as methamidophos, acephate, omethoate, imazalil, and thiabendazole. Using this method, a single chemist can prepare a batch of 6 previously chopped samples in <30 min with approximately $1 (U.S.) of materials per sample.

Ionic Liquid as a Ferrofluid Carrier for Dispersive Solid Phase Extraction of Copper from Food Samples

2015 ◽  
Vol 8 (8) ◽  
pp. 1979-1989 ◽  
Author(s):  
Malihe Davudabadi Farahani ◽  
Farzaneh Shemirani ◽  
Negin Fasih Ramandi ◽  
Maysam Gharehbaghi
Keyword(s):  
Ionic Liquid ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Food Samples ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction

A dispersive solid phase extraction adsorbent based on aptamer modified chitosan nanofibers for zearalenone separation in corn, wheat, and beer samples

2020 ◽  
Vol 12 (48) ◽  
pp. 5852-5860
Author(s):  
Luying Liu ◽  
Yanxia Ma ◽  
Xiaoting Zhang ◽  
Xixiang Yang ◽  
Xiaogang Hu
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Food Samples ◽  
Selective Separation ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Modified Chitosan

Highly selective separation of trace bio-toxins in food samples has long been a hot topic pursued by analytical chemists.

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.

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