A molecularly imprinted polymer for the selective determination of Di(2-ethylhexyl) phthalate (DEHP) in water was synthesized and evaluated. This was accomplished by the use of sodium methacrylate as the monomer, toluene as a porogen, ethylene glycol dimethacrylate as a crosslinker, azobisisobutyronitrile as initiator and DEHP as a template molecule to generate the selectivity of the polymer for the compound, as well as synthesizing non-imprinted polymers. Three different polymerization approaches were used, emulsion, bulk and co-precipitation, the polymers obtained by emulsion presented a high retention rate reaching 99%. The method was able to pre-concentrate DEHP in water samples up to 250 times. To evaluate the applicability of the method, concentrations in fortified and bottled water were assessed using our polymer and determining DEHP concentrations by gas chromatography with mass spectrometry. Reported concentrations in bottled water were 12.1 µg/L, well above reference values established by the U.S. Environmental Protection Agency.

合成并评估了分子印迹聚合物，用于选择性测定水中的邻苯二甲酸二（2-乙基己基）酯（DEHP）。这是通过使用甲基丙烯酸钠作为单体，使用甲苯作为致孔剂，使用乙二醇二甲基丙烯酸酯作为交联剂，使用偶氮二异丁腈作为引发剂，并使用DEHP作为模板分子来产生聚合物对化合物的选择性以及合成非印迹聚合物。使用三种不同的聚合方法，乳液，本体和共沉淀，通过乳液获得的聚合物具有高达99％的高保留率。该方法能够对水中的DEHP进行多达250次的预浓缩。为了评估该方法的适用性，使用我们的聚合物评估强化和瓶装水中的浓度，并通过质谱气相色谱法确定DEHP浓度。报告的瓶装水浓度为12.1 µg / L，远高于美国环境保护局设定的参考值。