{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T15:45:13Z","timestamp":1760888713721,"version":"build-2065373602"},"reference-count":18,"publisher":"Wiley","issue":"13","license":[{"start":{"date-parts":[[2012,7,4]],"date-time":"2012-07-04T00:00:00Z","timestamp":1341360000000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2012,7]]},"abstract":"<jats:p>A new technique for the analysis of volatile aromatic hydrocarbons by combining liquid\u2013liquid microextraction with solid phase microextraction has been developed. The analytes were extracted from aqueous samples by an immobilized polydimethylsiloxane fiber assisted by the droplets of an appropriate organic solvent. Benzene, toluene, ethylbenzene, and <jats:italic>o<\/jats:italic>\u2010xylene were used as target analytes. The main factors potentially affecting the microextraction such as the nature and the volume of organic solvent, polydimethylsiloxane (<jats:styled-content style=\"fixed-case\">PDMS<\/jats:styled-content>) swelling, extraction time, agitation, temperature, and salts were optimized. The method requires a very low consumption of organic solvent. The relative enrichment factor is in the range of 7.1\u201332.4 for extraction in the presence of dichloromethane at an optimum volume of 18 \u03bc<jats:styled-content style=\"fixed-case\">L<\/jats:styled-content> m<jats:styled-content style=\"fixed-case\">L<\/jats:styled-content><jats:sup>\u22121<\/jats:sup> of aqueous sample. This enhancement over regular polydimethylsiloxane fiber is primarily the result of the fiber swelling and of a stable thin layer of organic solvent attached to the surface of the <jats:styled-content style=\"fixed-case\">PDMS<\/jats:styled-content> fiber. The limit of detection ranges from 0.02 to 0.65 ng m<jats:styled-content style=\"fixed-case\">L<\/jats:styled-content><jats:sup>\u22121<\/jats:sup> for the target compounds using a 7\u2010\u03bcm bonded polydimethylsiloxane coating and a flame ionization detector. The validity of this method is demonstrated by the analysis of a real waste water sample.<\/jats:p>","DOI":"10.1002\/jssc.201101105","type":"journal-article","created":{"date-parts":[[2012,7,4]],"date-time":"2012-07-04T19:20:46Z","timestamp":1341429646000},"page":"1651-1658","source":"Crossref","is-referenced-by-count":8,"title":["Solid phase microextraction assisted by droplets\u2010based liquid\u2013liquid microextraction for analysis of volatile aromatic hydrocarbons in water by gas chromatography"],"prefix":"10.1002","volume":"35","author":[{"given":"Ionel","family":"Ciucanu","sequence":"first","affiliation":[{"name":"Department of Chemistry West University of Timisoara Timisoara Romania"},{"name":"GC\u2010MS Laboratory Research Center for Thermal Analysis in Environmental Problems Institute of Advanced Environmental Research Timisoara Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vlad","family":"Agotici","sequence":"additional","affiliation":[{"name":"Department of Chemistry West University of Timisoara Timisoara Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2012,7,4]]},"reference":[{"key":"e_1_2_6_2_1","first-page":"377","volume-title":"Principles of Toxicology: Environmental and Industrial Applications","author":"Teaf C. 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