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Conventional Soxhlet extraction yields low (\u223c50%\u201360%) recovery of PAHs (naphthalene, phenanthrene, pyrene, dibenzofuran, fluorene, and dibenzothiophene) from FFT, which impedes accurate PAH determination. Therefore, an optimized method was developed in this study that included (1) selection of a suitable solvent, (2) enhancement of PAH recovery by pretreatment, (3) determination of optimal extraction time, and (4) optimization of sample cleanup procedure. Results showed that (1) dichloromethane (DCM) recovered significantly higher masses of PAHs from FFT than hexane (HEX), cyclohexane, or their mixtures with DCM; (2) pretreatment of FFT with DCM significantly improved PAHs recovery using either Soxhlet or mechanical shaking methods; (3) a 24\u2010h Soxhlet extraction with pretreatment yielded the highest and the most consistent PAH recoveries; (4) DCM proved to be an efficient eluent for sample cleanup in silica gel column; and (5) consecutive cleanups with additional silica gel column removed excessive impurities without PAH losses. Therefore, this study developed an optimized method for PAH recoveries from FFT, achieving a pooled mean recovery of \u223c94%. This method is applicable to other organic\u2010rich fine\u2010textured wastes such as sludge and clay sediments.<\/jats:p>","DOI":"10.1002\/jeq2.70033","type":"journal-article","created":{"date-parts":[[2025,4,28]],"date-time":"2025-04-28T22:21:14Z","timestamp":1745878874000},"page":"1033-1044","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Pre\u2010treatment with extraction solvent yields higher recovery: Method optimization for efficient determination of polycyclic aromatic hydrocarbons in organic\u2010rich fine\u2010textured wastes"],"prefix":"10.1002","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3397-5504","authenticated-orcid":false,"given":"Henian","family":"Guo","sequence":"first","affiliation":[{"name":"Department of Renewable Resources University of Alberta  Edmonton Alberta Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Najmeh","family":"Samadi","sequence":"additional","affiliation":[{"name":"Department of Renewable Resources University of Alberta  Edmonton Alberta Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maryam","family":"Firoozbakht","sequence":"additional","affiliation":[{"name":"Department of Renewable Resources University of Alberta  Edmonton Alberta Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1818-3725","authenticated-orcid":false,"given":"Alsu","family":"Kuznetsova","sequence":"additional","affiliation":[{"name":"Department of Renewable Resources University of Alberta  Edmonton Alberta Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tariq","family":"Siddique","sequence":"additional","affiliation":[{"name":"Department of Renewable Resources University of Alberta  Edmonton Alberta Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,4,28]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.envpol.2020.114988"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0003\u20102670(98)00817\u20104"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1080\/15320383.2015.1020408"},{"key":"e_1_2_9_5_1","unstructured":"Canadian Association of Petroleum Producers (CAPP). 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