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首页> 外文期刊>RSC Advances >Magnetic surface molecularly imprinted poly(3-aminophenylboronic acid) for selective capture and determination of diethylstilbestrol
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Magnetic surface molecularly imprinted poly(3-aminophenylboronic acid) for selective capture and determination of diethylstilbestrol

机译：用于选择性捕获和测定二乙基胱螺旋的磁性表面分子印迹聚（3-氨基苯基硼酸）

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摘要

Diethylstilbestrol (DES) is considered a representative example of an exogenous endocrine disrupting compound (EDC). It can retard development in infants, lead to serious metabolic regulation disorders, and even result in distortion and cancer in the reproductive system. Therefore, achieving rapid and accurate analysis of trace amounts of DES in complex environments is of great importance to human health and for environmental protection. Novel magnetic molecularly imprinted polymers (MIPs) with excellent molecular recognition ability and super water-compatibility were developed for the selective capture of DES in water samples. Fe3O4@SiO2 magnetic nanoparticles (NPs) were synthesized and used as support cores. Molecularly imprinted poly(3-aminophenylboronic acid) (poly(APBA)), synthesized on magnetic cores based on a surface-imprinting strategy, can preferentially bind DES molecules in water samples. The magnetic core-shell MIPs (denoted as Fe3O4@SiO2@APBA/MIPs) exhibited high binding capacity and favorable recognition specificity for DES in water. The adsorption kinetics and experimental isotherm data of DES on magnetic MIPs can be well described by the pseudo-second-order kinetic model and the Langmuir isotherm, respectively. The imprinted nanoparticles were subjected to magnetic solid-phase extraction (MSPE) of DES from water samples. The DES content in the samples was determined by high-performance liquid chromatography (HPLC). The peak area increased linearly with increasing DES concentration over the range 0.08-150 g L-1, with a detection limit of 0.03 g L-1. The recoveries for spiked lake water samples were in the range 97.1-103.2%, with relative standard deviation (RSD) of 2.8-4.3% (n = 6).
机译：己烯雌酚（DES）被认为是外源性内分泌干扰化合物（EDC）的一个代表性的例子。它能够在婴儿延缓发展，引起严重的代谢调节紊乱，甚至导致生殖系统的失真和癌症。因此，在复杂的环境中实现的DES的微量快速，准确的分析是对人类健康和环境的保护具有重要意义。新颖磁性分子印迹聚合物（MIP）具有优良的分子识别能力和超级水兼容性是为DES的水样中的选择性捕获显影。四氧化三铁的SiO 2 @磁性纳米颗粒（NP）的合成，并用作支承芯。分子印迹聚（3-氨基苯基硼酸）（聚（APBA）），基于表面压印策略磁芯合成，能水样中的优先结合DES分子。磁性核 - 壳的MIP（表示为Fe3O4的@的SiO 2 @ APBA / MIPS）的水显示出高结合能力和有利的识别特异性的DES。吸附动力学和DES对磁性的MIP实验等温线的数据可以由分别伪二级动力学模型和Langmuir等温，很好地描述。压印纳米颗粒进行从水样DES的磁性固相萃取（MSPE）。样品中的DES含量用高效液相色谱法（HPLC）测定。的峰面积与在范围0.08-150克L-1增加DES浓度线性增加，具有0.03克L-1的检测极限。加标湖水样品的回收率范围97.1-103.2％，其中2.8-4.3％（N = 6）相对标准偏差（RSD）。

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  • 来源
    《RSC Advances》 |2018年第24期|共13页
  • 作者

    Zhao Wen-Rui; Kang Tian-Fang; Lu Li-Ping; Cheng Shui-Yuan;

  • 作者单位

    Beijing Univ Technol Coll Environm &

    Energy Engn Key Lab Beijing Reg Air Pollut Control Beijing 100124 Peoples R China;

    Beijing Univ Technol Coll Environm &

    Energy Engn Key Lab Beijing Reg Air Pollut Control Beijing 100124 Peoples R China;

    Beijing Univ Technol Coll Environm &

    Energy Engn Key Lab Beijing Reg Air Pollut Control Beijing 100124 Peoples R China;

    Beijing Univ Technol Coll Environm &

    Energy Engn Key Lab Beijing Reg Air Pollut Control Beijing 100124 Peoples R China;

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