{"title":"Determination of lower halogenated hydrocarbons by the water-xylene extraction method","authors":"Masanori Inoko, Masatoshi Tsuchiya, Takeo Matsuno","doi":"10.1016/0143-148X(84)90013-2","DOIUrl":null,"url":null,"abstract":"<div><p>A modified liquid extraction method for determining trace amounts of lower halogenated hydrocarbons in drinking water has been studied. A 45 ml sample solution containing not less than 5 μg litre<sup>−1</sup> of CHCl<sub>3</sub>, CHCl:CCl<sub>2</sub>, CHBrCl<sub>2</sub>, CHClBr<sub>2</sub>, CHBr<sub>3</sub> and CCl<sub>2</sub>:CCl<sub>2</sub> and 0·4 μg litre<sup>−1</sup> of CCl<sub>4</sub> was extracted with 5 ml of xylene. The equilibrium concentrations of lower halogenated hydrocarbons in the xylene phase were determined by a gas chromatograph equipped with an electron capture detector and using a column which consists of tricresyl-phosphate (90 cm), squalane (170 cm) and silicone DC 200 (40 cm).</p><p>By means of this method, μg litre<sup>−1</sup> levels of lower halogenated hydrocarbons in drinking water were determined successfully.</p></div>","PeriodicalId":100484,"journal":{"name":"Environmental Pollution Series B, Chemical and Physical","volume":"7 2","pages":"Pages 129-140"},"PeriodicalIF":0.0000,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0143-148X(84)90013-2","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Pollution Series B, Chemical and Physical","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0143148X84900132","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A modified liquid extraction method for determining trace amounts of lower halogenated hydrocarbons in drinking water has been studied. A 45 ml sample solution containing not less than 5 μg litre−1 of CHCl3, CHCl:CCl2, CHBrCl2, CHClBr2, CHBr3 and CCl2:CCl2 and 0·4 μg litre−1 of CCl4 was extracted with 5 ml of xylene. The equilibrium concentrations of lower halogenated hydrocarbons in the xylene phase were determined by a gas chromatograph equipped with an electron capture detector and using a column which consists of tricresyl-phosphate (90 cm), squalane (170 cm) and silicone DC 200 (40 cm).
By means of this method, μg litre−1 levels of lower halogenated hydrocarbons in drinking water were determined successfully.
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