Multi-class multi-residue analysis of pesticides in edible oils by gas chromatography-tandem mass spectrometry using liquid-liquid extraction and enhanced matrix removal lipid cartridge cleanup

Zhao, Limian; Szakas, Thomas; Churley, Melissa; Lucas, Derick

doi:10.1016/j.chroma.2018.11.022

Cited by 53 publications

(20 citation statements)

References 25 publications

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“…Modified LLE for lipophilic pesticides in olive oil were developed. The efficiency of LLE was improved using a two‐step LLE with a mixture of acetonitrile and ethyl acetate for lipophilic pesticides . The samples extracted with LLE are cleaned either by SPE or d‐SPE, as can be seen in Figure .…”

Section: Sample Extraction and Cleanup Methodsmentioning

confidence: 99%

“…The LLE extracted sample of olive oil were subjected to cleanup using EMR‐Lipids cartridges in SPE cleanup. The recovery of lipophilic pesticides was higher as compared to PSA/C18 in olive oil . EMR lipids is a novel sorbent for fatty sample cleanup that selectively retain the fatty acids by size exclusion and hydrophobic interactions.…”

Section: Role Of Cleanup Sorbentmentioning

confidence: 99%

“…EMR lipids is a novel sorbent for fatty sample cleanup that selectively retain the fatty acids by size exclusion and hydrophobic interactions. The sorbents pores mostly allow only unbranched hydrocarbons to enter and hence retain in EMR pores, due to hydrophobic interaction . The structures of pesticides are different from fatty acids; hence these pesticides remain in extraction solvents and the fatty acids are selectively retained.…”

Section: Role Of Cleanup Sorbentmentioning

confidence: 99%

“…aldrin and DDT and pyrethroids e.g. permethrin and deltamethrin showed low recoveries in EMR cleanup of olive oil . However, recoveries of these pesticides can be increased by using secondary eluting solvents containing a mid‐polar solvent such as ethyl acetate and dichloromethane .…”

Section: Role Of Cleanup Sorbentmentioning

confidence: 99%

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Extraction techniques for pesticide residues analysis in edible oils and role of sorbents in cleanup

Muhammad

Ahad

Mehboob

2020

Separation Science Plus

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Pesticide residue analysis enables researchers to detect the minute quantity of residual pesticides by applying sensitive analytical techniques which include gas chromatography with mass spectrometry and liquid chromatography with mass spectrometry. However, the sample preparation step prior to utilizing these sophisticated techniques is key to achieving the required sensitivity. The present article reviews the significant methods available for sample preparation for pesticide residue analysis in edible oil. Present sample extraction and cleanup section, most common extraction and cleanup techniques such as liquid‐liquid extraction, solid phase extraction/dispersive solid phase extraction and quick, easy, cheap, effective, rugged and safe method are discussed. Since selection of sorbent affects the recovery, matrix effect and rate of false positive and false negatives, hence, special attention has been paid to sorbents required for sample cleanup. Many sorbents are commercially available however their possible interactions with fatty acids and impurities have not been highlighted in literature. The present review not only highlights the role of commonly used sorbents such as florisil, graphitized carbon black, primary secondary amine and octadecyl bonded silicas but also discusses the pros and cons of newly developed sorbents.

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Section: Sample Extraction and Cleanup Methodsmentioning

confidence: 99%

Section: Role Of Cleanup Sorbentmentioning

confidence: 99%

Section: Role Of Cleanup Sorbentmentioning

confidence: 99%

Section: Role Of Cleanup Sorbentmentioning

confidence: 99%

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Extraction techniques for pesticide residues analysis in edible oils and role of sorbents in cleanup

Muhammad

Ahad

Mehboob

2020

Separation Science Plus

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“…Due to this fact, these pesticidesmust be documented and precisely scanned. Several methods have been reported for the analysis of multiclass pesticide residues in fruit matrices, associating soxhlet extraction [4], liquid-liquid extraction (LLE) [5], matrix solid phase dispersion (MSPD) [6], microwave assisted extraction (MAE) [7], accelerated solvent extraction (ASE) [8], ultrasound extraction [9] and solid phase extraction (SPE) [10,11].These methods have been used with limited success. To optimize and detect the pesticides, therefore a simple, rapid and cost-effective method is needed.…”

Section: Introductionmentioning

confidence: 99%

Validation of a modified QuEChERS method to determine multiclass multipesticide residues in apple, banana and guava using GC–MS and LC–MS/MS and its application in real sample analysis

et al. 2020

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A modified QuEChERS method was developed for the determination of 64 pesticides in apple, guava andbanana using GC-MS and LC-MS/MS. Out of sixty-four pesticides, 39 (32 insecticides + 7 herbicides) were analysed by GC-MS and others were analysed in LC-MS/MS. The efficiency of methanol, ethyl-acetate and acetonitrile as extracting solvents were checked. Among these, acetonitrile gave the highest recovery. d-SPE clean-up was done for apple and guava using PSA, whereas PSA + GCB was used for banana to remove heteropolysaccharides and carotenoids. The method was validated as per SANTE/11813/2017 guidelines. The LOD was in the range of 0.002-0.04 mg kg −1 and LOQ was 0.005-0.11 mg kg −1. Average recovery ranged from 80 to 120% with RSD ≤ 20% and RPD % of precision ≤ 20%. The expanded uncertainty was ≤ 20%. The validated method was applied to check the real samples of apple, guava and banana collected from markets of four different districts of West Bengal, India.

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Removing Disturbing Matrix Constituents from Biota Extracts from Total Extraction and Silicone‐Based Passive Sampling

Muz

Rojo-Nieto

Jahnke

2021

Enviro Toxic and Chemistry

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Contaminant analysis in biota extracts can be hampered by matrix interferences caused by, e.g., co-extracted lipids that compromise the quality of the analytical data and require frequent maintenance of the analytical instruments. In this study we aimed to develop and validate a straightforward, robust and reproducible cleanup method with acceptable recoveries for diverse compound classes with a wide range of This article is protected by copyright. All rights reserved. Accepted Articlephysico-chemical properties representative of pollutant screening in biota extracts using gas chromatography coupled to high-resolution mass spectrometry (GC-HRMS). We compared Oasis PRiME HLB cartridges, Agilent Captiva EMR-Lipid cartridges and "Freeze-Out" with salmon lipids spiked with 113 target chemicals. The EMR-Lipid cartridges provided extracts with low matrix effects at reproducible recoveries of the multi-class target analytes (93 ± 9% and 95 ± 7% for low and high lipid amounts, respectively). EMR-Lipid cartridges were further tested with spiked pork lipids submitted to total extraction or silicone-based passive sampling. Reproducible recoveries were achieved and matrix residuals were largely removed as demonstrated gravimetrically for both types of extracts. Ion suppression of halogenated compounds was not as efficiently removed by the clean-up of total and silicone-based extracts of pork lipids as for the salmon lipids. However, the samples with clean-up provided better instrument robustness than without clean-up. Hence, EMR-Lipid cartridges were shown to be efficient as a clean-up method in multi-class monitoring of biota samples and open up new possibilities as a suitable clean-up method for silicone extracts in biota passive sampling studies using GC-HRMS.

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Multi-class multi-residue analysis of pesticides in edible oils by gas chromatography-tandem mass spectrometry using liquid-liquid extraction and enhanced matrix removal lipid cartridge cleanup

Cited by 53 publications

References 25 publications

Extraction techniques for pesticide residues analysis in edible oils and role of sorbents in cleanup

Extraction techniques for pesticide residues analysis in edible oils and role of sorbents in cleanup

Validation of a modified QuEChERS method to determine multiclass multipesticide residues in apple, banana and guava using GC–MS and LC–MS/MS and its application in real sample analysis

Removing Disturbing Matrix Constituents from Biota Extracts from Total Extraction and Silicone‐Based Passive Sampling

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