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本文合成了随塑化剂的浓度增大而发生荧光逐渐淬灭的荧光受体分子4-((E)-2-[(4-苯酚基)乙烯基]-1-溴化烯丙基吡啶(HPEAPB),为了实现在复杂样品白酒中塑化剂的定量检测,将HPEAPB作为功能单体结合分子印迹技术合成了能够特异性识别白酒中塑化剂的分子印迹荧光传感器。在传感器的乙醇溶液中加入塑化剂后,溶液的荧光发射图谱在488nm处的吸收峰减弱,且其淬灭强度与塑化剂的浓度呈较好的线性相关性,检出限达4.0×10~(-6) mol/L(11.3 ppm)。该分子印迹荧光传感器可用于日常生活领域中,廉价、便捷、准确地检测白酒中塑化剂的含量。
In this paper, the fluorescence acceptor molecule 4 - ((E) -2 - [(4-phenol) vinyl] -1-allyl bromide (HPEAPB). In order to achieve the quantitative detection of plasticizer in the complex sample liquor, HPEAPB was used as the functional monomer combined with molecular imprinting technology to synthesize the molecular imprinted fluorescence sensor which can specifically identify the plasticizer in liquor. After addition of plasticizer, the fluorescence emission spectrum of the solution attenuated at 488 nm, and its quenching intensity showed a good linear correlation with the concentration of plasticizer. The detection limit was 4.0 × 10 -6 ) mol / L (11.3 ppm) .The molecularly imprinted fluorescence sensor can be used in the field of daily life, cheap, convenient and accurate detection of plasticizer content in liquor.