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Acetonitrile was used as collecting solvent for the extraction of <jats:styled-content style=\"fixed-case\">PAH<\/jats:styled-content>s from sediment by vortex\u2010assisted extraction. In <jats:styled-content style=\"fixed-case\">DLLME<\/jats:styled-content>, <jats:styled-content style=\"fixed-case\">PAH<\/jats:styled-content>s were rapidly transferred from acetonitrile to dichloromethane. Under the optimum conditions, the method yields a linear calibration curve in the concentration range from 10 to 2100 ng g<jats:sup>\u22121<\/jats:sup> for fluorene, anthracene, chrysene, benzo[k]fluoranthene, and benzo[a]pyrene, and 20 to 2100 ng g<jats:sup>\u22121<\/jats:sup> for other target analytes. Coefficients of determinations ranged from 0.9986 to 0.9994. The limits of detection, based on signal\u2010to\u2010noise ratio of three, ranged from 2.3 to 6.8 ng g<jats:sup>\u22121<\/jats:sup>. Reproducibility and recoveries was assessed by extracting a series of six independent sediment samples, which were spiked with different concentration levels. Finally, the proposed method was successfully applied in analyses of real nature sediment samples. The proposed method extended and improved the application of <jats:styled-content style=\"fixed-case\">DLLME<\/jats:styled-content> to solid samples, which greatly shorten the extraction time and simplified the extraction process.<\/jats:p>","DOI":"10.1002\/jssc.201200234","type":"journal-article","created":{"date-parts":[[2012,8,15]],"date-time":"2012-08-15T05:01:12Z","timestamp":1345006872000},"page":"2796-2804","source":"Crossref","is-referenced-by-count":63,"title":["Vortex\u2010assisted extraction combined with dispersive liquid\u2013liquid microextraction for the determination of polycyclic aromatic hydrocarbons in sediment by high performance liquid chromatography"],"prefix":"10.1002","volume":"35","author":[{"given":"Geng","family":"Leng","sequence":"first","affiliation":[{"name":"Department of Environmental Science and Engineering Sichuan University  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guibin","family":"Lui","sequence":"additional","affiliation":[{"name":"Chengdu Environmental Monitoring Center  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong","family":"Chen","sequence":"additional","affiliation":[{"name":"Chengdu Environmental Monitoring Center  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui","family":"Yin","sequence":"additional","affiliation":[{"name":"Chengdu Environmental Monitoring Center  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dezhong","family":"Dan","sequence":"additional","affiliation":[{"name":"Department of Environmental Science and Engineering Sichuan University  Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,8,15]]},"reference":[{"key":"e_1_2_7_2_1","volume-title":"Polycyclic Aromatic Hydrocarbons","author":"Harvey R. 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