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| Determination of Phthalic Acid Esters Released from Food Paper Packaging Materials by High Performance Liquid Chromatography |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:high performance liquid chromatography food simulants paper food contact materials phthalic acid esters solid phase extraction |
| Author | Institution |
| 杨博锋，汤志旭，高昕，牛增元，罗忻，王风美，简慧敏 |
1.中国海洋大学食品科学与工程学院;2.山东出入境检验检疫局 |
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| Abstract: |
| The different types of food simulated migration of ten phthalic acid esters in food paper packaging materials were replaced by distilled water，3% acetic acid，10% ethanol and 95% ethanol.The ten phthalic acid esters in four food simulants were enriched and purified by C18 solid phase extraction column，and separated on an Eclipse XDB-C18（4.6 mm×150 mm，5 μm，Agilent）column using acetonitrile and water as mobile phases.The analysis of ten phthalic acid esters was performed by high performance liquid chromatography with a diode array detector.Under the optimal conditions，all of the ten phthalate acid esters had the same maximum absorbance at 224 nm，The calibration curves were linear in the certain concentration range with correlation coefficients（r2） higher than 0.999 9.The recoveries at spiked levels of 0.05，0.1,0.2 mg?L-1 ranged from 71% to 107% with RSDs of 0.86%-8.0%.The limits of detection were lower than 0.1 mg/kg.The method was simple，rapid and reliable，and could meet the requirements for relevant limit regulations. |
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