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In this study, a phase\u2010transfer catalyst (tetrabutylammonium chloride) was used in the liquid\u2013liquid heterogeneous hydrolysis of phthalates in oil matrix shortening the reaction time to within 25 min. The resulting phthalic acid in the hydrolysate was extracted by a novel molecular complex based dispersive liquid\u2013liquid microextraction method coupled with back\u2010extraction before high\u2010performance liquid chromatography coupled with photodiode array detection. Under the optimal experimental conditions, the linearity of the method was in the range of 0.5\u201312 nmol\/g with the correlation coefficients (<jats:italic>r<\/jats:italic>) &gt;0.997. The detection limit (S\/N = 3) was 0.11 nmol\/g. Intraday and interday repeatability values expressed as relative standard deviation were 3.9 and 7.1%, respectively. The recovery rates ranged from 82.4 to 99.0%. The developed method was successfully applied for the analysis of total phthalate in seven edible oils.<\/jats:p>","DOI":"10.1002\/jssc.201501169","type":"journal-article","created":{"date-parts":[[2015,12,23]],"date-time":"2015-12-23T04:55:05Z","timestamp":1450846505000},"page":"857-863","source":"Crossref","is-referenced-by-count":23,"title":["Determination of total phthalates in edible oils by high\u2010performance liquid chromatography coupled with photodiode array detection"],"prefix":"10.1002","volume":"39","author":[{"given":"Qilong","family":"Xie","sequence":"first","affiliation":[{"name":"State Key Laboratory of Coal Conversion, Institute of Coal Chemistry Chinese Academy of Sciences  Taiyuan Shanxi China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dekui","family":"Sun","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Coal Conversion, Institute of Coal Chemistry Chinese Academy of Sciences  Taiyuan Shanxi 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