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首页> 外文期刊>RSC Advances >Synthesis and evaluation of a molecularly imprinted polymer with high-efficiency recognition for dibutyl phthalate based on Mn-doped ZnS quantum dots
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Synthesis and evaluation of a molecularly imprinted polymer with high-efficiency recognition for dibutyl phthalate based on Mn-doped ZnS quantum dots

机译：基于Mn掺杂ZnS量子点的分子印迹聚合物对分子印迹聚合物的合成与评价

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摘要

In this study, molecularly imprinted polymers with Mn-doped ZnS quantum dots (ZnS:Mn QDs) were prepared using dibutyl phthalate (DBP) as the template molecule, 3-aminopropyltriethoxysilane (APTES) as the functional monomer and the tetraethoxysilane (TEOS) as the cross-linker. ZnS:Mn QDs offer a readout signal to monitor the amount of DBP bound to the imprinted matrix and to evaluate the efficiency of imprinting. The products MIPs-ZnS:Mn QDs were characterized by transmission electron microscope, Fourier transform infrared spectroscopy, X-ray diffraction and fluorescence spectroscopy. In addition, optical stability and the effect of pH on fluorescence intensity were evaluated. The obtained polymers can sensitively and selectively recognize template molecules in real samples via fluorescence intensity. The fluorescence intensity decreases linearly with increasing concentration in the range of 5.0-50 mu mol L-1. It reaches a detection limit of 0.27 mu mol L-1. The average recovery rate of DBP at three spiking levels is more than 98.1%.
机译：在该研究中，使用作为模板分子的二丁酯（DBP），3-氨基丙基三乙氧基硅烷（Aptes）作为功能性单体和四乙氧基硅烷（TEOS）制备具有Mn掺杂ZnS量子点（ZnS：Mn QDS）的分子印迹聚合物。交联剂。 ZNS：Mn QD提供读数信号，以监视与印版体矩阵绑定的DBP的量，并评估压印效率。产品MIPS-ZNS：Mn QD通过透射电子显微镜，傅里叶变换红外光谱，X射线衍射和荧光光谱。另外，评价了光学稳定性和pH对荧光强度的影响。所得聚合物通过荧光强度可敏感地敏感地识别真实样品中的模板分子。荧光强度随着5.0-50μmmol1-1的浓度的增加而导致线性降低。它达到0.27μmol1-1的检出限。三个尖峰水平的DBP的平均回收率超过98.1％。

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  • 来源
    《RSC Advances》 |2016年第59期|共8页
  • 作者

    Li Tao; Gao Zhikun; Wang Ningwei; Zhou Zhiping; Xu Wanzhen; Zheng Jianfeng; Yang Wenming;

  • 作者单位

    Jiangsu Univ Sch Mat Sci &

    Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Mat Sci &

    Engn Zhenjiang 212013 Peoples R China;

    Zhenjiang Entry Exit Inspect Quarantine Bur Zhenjiang 212008 Peoples R China;

    Jiangsu Univ Sch Mat Sci &

    Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Environm &

    Safety Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Mat Sci &

    Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Mat Sci &

    Engn Zhenjiang 212013 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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