共查询到18条相似文献,搜索用时 129 毫秒
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李普庆 《精细与专用化学品》2015,23(6)
分子印迹膜是在分子印迹技术的基础上结合膜科学而形成的一种具有分子识别及记忆作用的分离膜,在固相萃取分离、色谱技术、手性拆分及仿生传感器方面具有很好的应用潜力。分子印迹膜的制备是其应用的关键前提。综述了分子印迹膜的制备技术,并对分子印迹膜未来的发展进行了展望。 相似文献
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因分子印迹技术具有预定性,较高的识别性和实用性等特点。而分子印迹聚合物相对于天然物质来讲,具有同样的识别能力,其更具有抗高温高压、抗强酸碱盐、抗恶劣环境的稳定性,而且所用物质可重复使用。因此该技术广泛的应用在医药、环境、食品、军事等领域。而在分离领域主要分为固相萃取、手性分离、膜分离以及药物分析几个方向。 相似文献
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Jiabing Jiang Qi Zhou Chengcheng Kang Suqin Wu Youwen Tang Xiongjun Zuo 《应用聚合物科学杂志》2013,129(6):3425-3431
A hydroquinidine‐imprinted stationary selector with chiral recognition for cinchona alkaloids was prepared by bulk polymerization with (+)‐(2R,3R)‐N,N′‐diallyl‐L ‐tartardiamide as a functional monomer, and the recognition properties of the polymers for quinidine (QD) were analyzed with high‐performance liquid chromatography. By optimizing the preparation conditions and chromatographic conditions, such as the ratio of the mobile phase and flow rate, QD and quinine could be completely separated to the best resolution of 2.25. The chiral molecularly imprinted polymers (CMIPs) combined the virtues of traditional brush‐type chiral selectors with existing CMIPs. The results show a substantial synergistic effect between the chiral monomer and the chiral cavity of the resulting CMIPs in chiral recognition. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013 相似文献
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以聚砜(PSF)中空纤维超滤膜为基膜,采用表面紫外光聚合方法制备了D-色氨酸印迹中空纤维复合膜(CMIHFCM)。由SEM分析表明经过表面聚合后的D-色氨酸印迹中空纤维复合膜表面具有层叠交联状复合层,其厚度约3 μm。实验结果表明D-色氨酸印迹中空纤维复合膜对模板分子D-色氨酸具有很好的识别作用,D,L-色氨酸的分离因子(α)最高可以达到5.0,大于非分子印迹复合膜的识别选择性。此外,引发剂的用量对D-色氨酸印迹中空纤维复合膜的识别性能有较大影响;当引发剂的浓度为1.0%,制得的D-色氨酸印迹中空纤维复合膜对D-色氨酸具有较好的识别性能,具有良好的应用前景。 相似文献
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Harmata M 《Accounts of chemical research》2004,37(11):862-873
In this Account, a summary of our work on the synthesis and chemistry of chiral molecular tweezers and certain related species is presented. The framework around which the structures to be discussed were built was Kagan's ether, a short history of which will be given. Chiral molecular tweezers of various sizes were constructed and shown to exhibit binding to various pi acids. An analysis of chiral recognition was performed using variable temperature chiral high-performance liquid chromatography. It was shown that the chiral discrimination was essentially enthalpic in nature. Other forays into the chemistry of Kagan's ether analogues have also been made through the synthesis of a chiral catalyst and a chiral molecular square. 相似文献
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