Determination of organophosphorus pesticide residues in vegetables using solid phase micro-extraction coupled with gas chromatography–flame photometric detector

Sapahin, Haizarul Aida; Makahleh, Ahmad; Saad, Bahruddin

doi:10.1016/j.arabjc.2014.12.001

Cited by 55 publications

(25 citation statements)

References 44 publications

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“…Successful clean-up of obsolete pesticides requires sensitive analytical methods to monitor and verify that the clean-up process is working. There is significant literature on analytical methods to determine concentrations of pesticides in soil, water and foods [11,106,168,213,234,240,241]. This includes the US Environmental Protection Agency (EPA) Internet site under the heading Environmental Chemistry Methods [241], and AOAC International online and printed products [11].…”

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

“…Methods for organic pesticides include gas chromatography (GC), high-performance liquid chromatography (HPLC) [19,127], thin-layer chromatography (TLC) [96], spectrophotometry [120], polarography [208]. With GC, electron capture (ECD), nitrogen phosphorus (NPD), and flame photometric (FPD) detectors and mass spectrometry (GC-MS) have been used [56,77,142,203,213,248]. Liquid chromatography has been used with mass spectrometry (LC-MS) [213,240].…”

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

“…With GC, electron capture (ECD), nitrogen phosphorus (NPD), and flame photometric (FPD) detectors and mass spectrometry (GC-MS) have been used [56,77,142,203,213,248]. Liquid chromatography has been used with mass spectrometry (LC-MS) [213,240].…”

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

“…Determining the concentration of a pesticide is difficult if part of the pesticide is distributed in lipid-rich regions. In the analysis of pesticides, solid-phase extraction [11], solid-phase microextraction (SPME) [213], microwave-assisted extraction [108], and supercritical fluid extraction [203] have been used. There is a quick, easy, cheap, effective, rugged, and safe (QuEChRS) method for the preparation of pesticide samples [240].…”

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

“…EPA Methods 508.1, 525.2, 527, 8081 B, and 8151 A have been used for pesticide analysis [241,242]. There are many reports with applications of chemical analysis methods and results at specific sites [19,56,107,125,186,203,213,240,248]. Silva et al have used liquid chromatography tandem mass spectrometry (LC-MS/MS) and gas chromatography-high-resolution mass spectrometry (GC-HRMS) [282].…”

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

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Phytoremediation and Bioremediation of Pesticide-Contaminated Soil

et al. 2020

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Management and destruction of obsolete pesticides and the remediation of pesticide-contaminated soil are significant global issues with importance in agriculture, environmental health and quality of life. Pesticide use and management have a history of problems because of insufficient knowledge of proper planning, storage, and use. This manuscript reviews recent literature with an emphasis on the management of obsolete pesticides and remediation of pesticide-contaminated soil. The rhizosphere of plants is a zone of active remediation. Plants also take up contaminated water and remove pesticides from soil. The beneficial effects of growing plants in pesticide-contaminated soil include pesticide transformation by both plant and microbial enzymes. This review addresses recent advances in the remediation of pesticide-contaminated soil with an emphasis on processes that are simple and can be applied widely in any country.

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Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

Section: Analysis Of Pesticides To Monitor Clean-upmentioning

confidence: 99%

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Phytoremediation and Bioremediation of Pesticide-Contaminated Soil

et al. 2020

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Development of a carbon nanotube‐coated stir bar for determination of organophosphorus pesticides in water

Ahmadkhaniha

Rastkari

2016

Asia-Pacific J Chem Eng

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In this study a new adsorptive coating was developed and used for simultaneous extraction and determination of different organophosphorus pesticides (OPPs) in water samples. The adsorption phase was developed by modification of multi‐walled carbon nanotubes. A magnetic stir bar was coated with the adsorption phase using sol–gel technique and used for extraction. After extraction, the analytes were desorbed thermally and determined by gas chromatography‐mass spectrometry (GC‐MS). The developed method was optimized and validated. The optimum condition were found as pH 6.5, salt concentration of 1% (w/v), adsorption condition of 35 °C and 30 min and stirring rate of 1500 rpm. Desorption step was programmed as 40 °C for 0.5 min, then to 300 °C (at 60 °C min−1, held for 5 min). The acquired calibration curves were linear (0.987 ≤ r2 ≤ 0.995) over the concentration range 0.02–8 μg L−1. For all of the analytes, the limit of detection was ≤0.01 μg L−1. Interday precision values were always ≤13.40% and the reproducibility of coating procedure, evaluated in term of relative standard deviation (RSD), was found acceptable (12% ≤ RSD ≤ 14%). The recoveries were in the range of 67–84% with RSD in the range of 10.2–13.5%. Good solvent and thermal resistance are the other advantages of the developed coating which makes it suitable for extraction of target compounds in water samples. The developed method was successfully applied to determine target OPPs in real samples. Based on the results Diazinon and Dichlorvos were found in more than 50% of the samples in the range of 0.06–0.27 µg L−1. © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.

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Analysis of pesticide residues in potato varieties using modified quechers multi‐residue method combined with gas chromatography tandem mass spectrometric detection

Oyoo‐Ilukol,

Abong,

Okoth

et al. 2023

Crop Science

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Regular monitoring of pesticide residues in potatoes (Solanum tuberosum L.) is important to ensure low risk of pesticide toxicity to consumers. An efficient, modified QuEChERS‐ d‐SPE was optimized and validated for quantification of pesticides residues (metalaxyl, chlorpyrifos, λ‐cyhalothrin, and cypermethrin) in popular Kenyan potato varieties ‘Shangi’, ‘Tigoni’ and ‘Dutch Robyjn’ grown under controlled field conditions using GC‐MS/MS. An evaluation of the effect of five spraying frequencies (Unsprayed, 5, 7, 10 and 14 days’ intervals) of metalaxyl‐based fungicides on residue levels in harvested potatoes was simultaneously done. Metalaxyl residue levels in the varieties were determined for each spraying regime. Method validation showed good linearity (r2) of 0.988‐0.999, detection limit (0.37 to 0.61 μg/L), quantification limit (1.20 to 1.84 μg/L) while recovery (71‐ 94%) and precision (% RSD of 2.3‐24.1%) were used to determine the accuracy of the method. Pyrethroids (cypermethrin and λ‐cyhalothrin) and organophosphates (metalaxyl and chlorpyrifos) were detected in the potato samples. Residue levels of the compounds were not significantly different (p = 0.05) between varieties except for chlorpyrifos. Cypermethrin was the residue compound detected at the highest mean level with 17.4 μg/L, followed by metalaxyl, chlorpyrifos and λ‐cyhalothrin, at 2.88, 1.05 and 0.15 μg/L respectively. Residue levels at different spraying frequencies varied statistically between varieties (p = 0.05). Dutch Robyjn sprayed at 7 days’ interval had the highest residue level of 9.49±0.26 μg/L. QuEChERS‐dSPE with GC‐MS/MS has shown suitability for routine pesticide residue monitoring in potatoes. The potatoes grown under the controlled experimental conditions did not present any concern for human health, as the pesticide residues detected were below Codex MRLs of 500 μg/L.This article is protected by copyright. All rights reserved

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Determination of organophosphorus pesticide residues in vegetables using solid phase micro-extraction coupled with gas chromatography–flame photometric detector

Cited by 55 publications

References 44 publications

Phytoremediation and Bioremediation of Pesticide-Contaminated Soil

Phytoremediation and Bioremediation of Pesticide-Contaminated Soil

Development of a carbon nanotube‐coated stir bar for determination of organophosphorus pesticides in water

Analysis of pesticide residues in potato varieties using modified quechers multi‐residue method combined with gas chromatography tandem mass spectrometric detection

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