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The optimal vortex\u2010assisted liquid\u2013liquid microextraction conditions for 20 mL water sample were as follows: extractant 400 \u03bcL of dichloromethane; vortex extraction time of 1 min at 2500 \u00d7 <jats:italic>g<\/jats:italic>; centrifugation of 3 min at 5000 \u00d7 <jats:italic>g<\/jats:italic>; and no ionic strength adjustment. Under the optimum conditions, the limit of quantitation was 0.05 \u03bcg\/L. Precision, as indicated by relative standard deviations, was less than 9% for both intra\u2010 and inter\u2010day analysis. Accuracy, expressed as the mean extraction recovery, was above 91%. The vortex\u2010assisted liquid\u2013liquid microextraction with gas chromatography and electron capture negative ionization mass spectrometry method was successfully applied to quantitatively extract short\u2010chain chlorinated paraffins from samples of river water and the effluent of a wastewater treatment plant, and the concentrations ranged from 0.8 to 1.6 \u03bcg\/L.<\/jats:p>","DOI":"10.1002\/jssc.201500991","type":"journal-article","created":{"date-parts":[[2015,11,23]],"date-time":"2015-11-23T04:59:00Z","timestamp":1448254740000},"page":"427-432","source":"Crossref","is-referenced-by-count":21,"title":["Vortex\u2010assisted liquid\u2013liquid microextraction for the rapid screening of short\u2010chain chlorinated paraffins in water"],"prefix":"10.1002","volume":"39","author":[{"given":"Chia\u2010Yu","family":"Chang","sequence":"first","affiliation":[{"name":"Department of Chemistry National Central University  Chung\u2010Li 320 Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wu\u2010Hsun","family":"Chung","sequence":"additional","affiliation":[{"name":"Department of Chemistry National Central University  Chung\u2010Li 320 Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wang\u2010Hsien","family":"Ding","sequence":"additional","affiliation":[{"name":"Department of Chemistry National Central University  Chung\u2010Li 320 Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2015,12,21]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.envint.2006.05.009"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.trac.2009.04.009"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0272-0590(87)90028-5"},{"key":"e_1_2_8_5_1","first-page":"55","article-title":"IARC (International Agency for Research on Cancer)","volume":"48","year":"1990","journal-title":"Summaries Evaluations, Chlorinated Paraffins (Group 2B)"},{"key":"e_1_2_8_6_1","unstructured":"European Commission Directive 2002\/45\/EC of the European Parliament and of the Council of 25 June 2002 Off. 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