%0 Journal Article
%T Cloud point extraction coupled with HPLC-UV for the determination of phthalate esters in environmental water samples
%A WANG Ling
%A JIANG Gui-bin
%A CAI Ya-qi
%A HE Bin
%A WANG Ya-wei
%A SHEN Da-zhong
%A <br>WANG Ling
%A JIANG Gui-bin
%A CAI Ya-qi
%A HE Bin
%A WANG Ya-wei
%A SHEN Da-zhong
%J 环境科学学报(英文版)
%D 2007
%I 
%X A method based on cloud point extraction was developed to determine phthalate esters including di-ethyl-phthalate (DEP), di-(2-ethylhexyl)-phthalate (DEHP) and di-cyclohexyl- phthalate (DCP) in environmental water samples by high-performance liquid chromatography separation and ultraviolet detection (HPLC-UV). The non-ionic surfactant Triton X-114 was chosen as extraction solvent. The parameters affecting extraction efficiency, such as concentrations of Triton X-114 and Na2SO4, equilibration temperature, equilibration time and centrifugation time were evaluated and optimized. Under the optimum conditions, the method can achieve preconcentration factors of 35, 88, 111 and detection of limits of 2.0, 3.8, 1.0 ng/ml for DEP, DEHP and DCP in 10-ml water sample respectively. The proposed method was successfully applied to the determination of trace amount of phathalate esters in effluent water of the wastewater treatment plant and the lixivium of plastic fragments.
%K phthalate esters
%K cloud point extraction
%K Triton X-114
%K non-ionic surfactant
%K HPLC-UV
%K wastewater treatment
%K environmental
%K phthalate esters
%K determination
%K coupled
%K extraction
%K point
%K trace
%K effluent
%K plant
%K lixivium
%K plastic
%K fragments
%K sample
%K detection
%K preconcentration
%K factors
%K optimum conditions
%K centrifugation
%K time<br>邻苯二甲酸酯
%K 环境水样
%K 浊点萃取
%K 非离子表面活性剂
%K 高效液相色谱
%K 测定
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=CCA380B04FEA4533475B091757BB364A&yid=A732AF04DDA03BB3&vid=2A8D03AD8076A2E3&iid=DF92D298D3FF1E6E&sid=3893EBCAC6700388&eid=2D207DE75533FA7E&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=1&reference_num=27