{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T13:09:15Z","timestamp":1791119355758,"version":"4.1.0"},"reference-count":42,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2010,11,1]],"date-time":"2010-11-01T00:00:00Z","timestamp":1288569600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100012164","name":"National High-tech Research and Development Program","doi-asserted-by":"publisher","award":["2007AA061101"],"award-info":[{"award-number":["2007AA061101"]}],"id":[{"id":"10.13039\/501100012164","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["acsess.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Env Quality"],"published-print":{"date-parts":[[2010,11]]},"abstract":"<jats:p>Sixteen USEPA priority polycyclic aromatic hydrocarbons (PAHs) extracted by Soxhlet extraction (S\u2010PAHs) with dichloromethane and routine accelerated solvent extraction (A\u2010PAHs) with 1:1 toluene\/methanol, respectively, were investigated in 24 soil samples from two cities in the center of the Pearl River Delta, South China. Polycyclic aromatic hydrocarbons, methylphenanthrene and perylene, in two soils, two sediments, and an immature oil shale were also sequentially extracted by accelerated solvent extraction (ASE) with each of four different organic solvents for three times. The A\u2010PAHs' concentrations are 2.41 times the S\u2010PAHs' concentrations. For sequential three ASEs, PAHs in the first extract account for 56 to 67% of their total concentrations in the sequential three extractions and toluene displays the best extraction performance among the four solvents. Diagnostic ratios of PAHs in Soxhlet extraction, routine ASE, and sequential ASE with each solvent for a given sample are very similar, suggesting their identical petrogenic and pyrogenic sources in the soils and sediments. But the PAH ratios for the shale have an obvious petrogenic origin. The perylene\/5\u2010ring PAH ratios indicate a diagenetic source, especially in the shale and sediments. The correlation analysis shows that A\u2010PAHs\/S\u2010PAHs is better associated with the contents of total organic carbon (TOC) than those of black carbon (BC). The above results indicate the significant petrogenic origin of PAHs and the important effect of organic matter on their extraction and distribution in the investigated field soils\/sediments.<\/jats:p>","DOI":"10.2134\/jeq2010.0163","type":"journal-article","created":{"date-parts":[[2010,10,29]],"date-time":"2010-10-29T11:58:00Z","timestamp":1288353480000},"page":"2072-2079","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Sequential Accelerated Solvent Extraction of Polycyclic Aromatic Hydrocarbons with Different Solvents: Performance and Implication"],"prefix":"10.1002","volume":"39","author":[{"given":"Ma","family":"Xiaoxuan","sequence":"first","affiliation":[{"name":"State Key Lab. of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Wushan Guangzhou China 510640"},{"name":"School of Resource and Environment Engineering, Shandong Univ. of Technology Zibo Shandong China 255049"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ran","family":"Yong","sequence":"additional","affiliation":[{"name":"State Key Lab. of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Wushan Guangzhou China 510640"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gong","family":"Jian","sequence":"additional","affiliation":[{"name":"State Key Lab. of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Wushan Guangzhou China 510640"},{"name":"Dep. of Environmental Science and Engineering Guangzhou Univ. 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