Graduate School of Environmental Studies, Tohoku University, Aoba 6-6-20, Aramaki, Aobaku, Sendai 980-8579, Japan.
Chemosphere. 2012 Oct;89(4):378-82. doi: 10.1016/j.chemosphere.2012.05.037. Epub 2012 Jun 23.
We developed a novel polymer type sulfoxide-modified solid phase enabling to achieve selective separation of polychlorinated biphenyls (PCBs) from insulation oil. In this study, firstly we prepared base-polymer based on the concept of the molecular imprinting to capture PCBs in selectively, then, the sulfoxide groups were modified on the pore surface of base-polymers by changing preparation methods. As results of liquid chromatographic analyses for the polymers as columns, the base-polymer prepared by xylene as a porogenic solvent showed selective retention ability for chlorinated aromatic compounds by the porogen imprinting effect. Additionally, the polymer-type sulfoxide solid phases showed highly retention ability for PCBs by increasing amount of introduced sulfoxide groups. Consequently, the results of separation of PCBs comparing to insulation oil suggested that the prepared solid phase can be used for the selective separation of PCBs at the same level as a commercially available media utilized for the regulated method.
我们开发了一种新型聚合物型亚砜改性固相，能够实现多氯联苯（PCBs）从绝缘油中选择性分离。在这项研究中，我们首先基于分子印迹的概念制备了用于选择性捕获 PCBs 的基础聚合物，然后通过改变制备方法在基础聚合物的孔表面上修饰亚砜基团。作为聚合物作为色谱柱的液相色谱分析结果，以二甲苯作为致孔剂溶剂制备的基础聚合物通过致孔印迹效应显示出对氯化芳烃化合物的选择性保留能力。此外，聚合物型亚砜固相反响通过增加引入的亚砜基团的量而显示出对 PCBs 的高保留能力。因此，PCBs 与绝缘油的分离结果表明，所制备的固相可以用于与商业上可用的用于规定方法的介质相媲美的 PCB 的选择性分离。
