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<p>In this study, a solvent-assisted dispersive solid-phase extraction (SA-DSPE) method followed by a gas chromatography equipped with a flame ionization detector (GC-FID) was applied for the extraction and determination of some polycyclic aromatic hydrocarbons (PAHs) in various real samples. <i>N</i>,<i>N</i>′-bis(salicylidene)ethylenediamine (salen), as a sorbent, was simply synthesized and characterized. Under the optimal conditions (solution pH: 6.0, amount of sorbent: 0.5%, disperser solvent type: acetonitrile, disperser solvent volume: 500&#xa0;µL, and centrifugation condition: 3743&#xa0;g for 3&#xa0;min), preconcentration factors and extraction recoveries for PAHs were obtained ranging from 140 to 183 and 70 to 92%, respectively. Linear dynamic ranges were from 2.0 to 200.0&#xa0;ng&#xa0;mL<sup>−1</sup> with the regression coefficients (<i>R</i><sup>2</sup>) exceeding 0.99, limits of detection from 0.6 to 0.9&#xa0;ng&#xa0;mL<sup>−1</sup>, and the repeatability values (RSD%) ≤ 8.4% (<i>n</i> = 5). The proposed method can be effectively applied for extracting and determining PAHs in both food and environmental samples.</p> Graphical abstract <p></p>

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Solvent-assisted dispersive solid-phase extraction based on salen as a new and efficient sorbent followed by GC-FID for determination of polycyclic aromatic hydrocarbons in water, food, and soil samples

  • 期刊论文

  • 发表日期：

    2025年9月9日

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  • Sajede Sadat Mousavi,
  • Abolfath Shahsavani,
  • Zolfaghar Aladaghlo,
  • Ali Reza Fakhari

摘要

In this study, a solvent-assisted dispersive solid-phase extraction (SA-DSPE) method followed by a gas chromatography equipped with a flame ionization detector (GC-FID) was applied for the extraction and determination of some polycyclic aromatic hydrocarbons (PAHs) in various real samples. N,N′-bis(salicylidene)ethylenediamine (salen), as a sorbent, was simply synthesized and characterized. Under the optimal conditions (solution pH: 6.0, amount of sorbent: 0.5%, disperser solvent type: acetonitrile, disperser solvent volume: 500 µL, and centrifugation condition: 3743 g for 3 min), preconcentration factors and extraction recoveries for PAHs were obtained ranging from 140 to 183 and 70 to 92%, respectively. Linear dynamic ranges were from 2.0 to 200.0 ng mL−1 with the regression coefficients (R2) exceeding 0.99, limits of detection from 0.6 to 0.9 ng mL−1, and the repeatability values (RSD%) ≤ 8.4% (n = 5). The proposed method can be effectively applied for extracting and determining PAHs in both food and environmental samples.

Graphical abstract