合成 NH₂-MIL-101(Cr) 上的分子印迹聚合物以特异性识别双氯芬酸钠。
Synthesis of a Molecularly Imprinted Polymer on NH₂-MIL-101(Cr) for Specific Recognition of Diclofenac Sodium.
机构信息
Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, Hunan, China.
College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, Guangdong, China.
出版信息
J Nanosci Nanotechnol. 2020 Mar 1;20(3):1807-1813. doi: 10.1166/jnn.2020.17352.
A novel molecularly imprinted polymer material based on the metal-organic framework NH₂-MIL-101(Cr) (MOF-MIP) was prepared. The synthesized MOF-MIP was characterized by IR, XRD, SEM and N2 absorption. The characterization results displayed that the MOF-MIP which exhibited an octahedral shape had good dispersibility, good thermal stability and a high surface area. Subsequently, the adsorption behavior of MOF-MIP to diclofenac sodium (DS) in aqueous solution was examined. A series of adsorption experiments demonstrated that the MOF-MIP had high transfer mass rates and high sensitivity and selectivity for DS. Then the MOF-MIP was used as the adsorbent of dispersive micro-solid phase extraction (DMSPE) for the detection of DS in urine. Under optimum conditions, the average recovery of DS ranged from 88.3 to 101.6% with RSD of 5.6%. The described method provides a rapid route for determination of DS in human urine.
一种基于金属有机骨架 NH₂-MIL-101(Cr)（MOF-MIP）的新型分子印迹聚合物材料被制备。所合成的 MOF-MIP 通过 IR、XRD、SEM 和 N2 吸附进行了表征。表征结果表明，呈八面体形状的 MOF-MIP 具有良好的分散性、良好的热稳定性和高的表面积。随后，研究了 MOF-MIP 在水溶液中对双氯芬酸钠（DS）的吸附行为。一系列吸附实验表明，MOF-MIP 对 DS 具有高的传质速率和高的灵敏度和选择性。然后，将 MOF-MIP 用作分散固相微萃取（DMSPE）的吸附剂，用于尿液中 DS 的检测。在最佳条件下，DS 的平均回收率在 88.3%至 101.6%之间，RSD 为 5.6%。该方法为测定人尿液中的 DS 提供了一种快速途径。
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