主页 > 生命科学 >
【文摘发布】分子印迹聚合纤维用于固相微萃取
Author： E. Turiel, J. L. Tadeo, and A. Martin-Esteban
Resource: Analytical Chemistry, 2007,79 ：3099 -3104.
Abstract：Solid-phase microextraction (SPME) is widely used in analytical laboratories for the analysis of organic compounds, thanks to its simplicity and versatility. However, the current commercially available fibers are based on nonselective sorbents, making difficult in some cases the final determination of target compounds by chromatographic techniques. Molecularly imprinted polymers (MIPs) are stable polymers with selective molecular recognition abilities, provided by the template used during their synthesis. In the present work, a simple polymerization strategy allowing the obtainment of molecularly imprinted polymeric fibers to be used in SPME is proposed. Such a strategy is based on the direct synthesis of molecularly imprinted polymeric fibers (monoliths) using silica capillaries as molds, with silica being etched away after polymerization. The system propazine: methacrylic acid was used as a model for the preparation of molecularly imprinted fibers, and its ability to selectively rebind triazines was evaluated. Variables affecting polymer morphology (i.e., polymerization time, fiber thickness) and binding-elution of target analytes (i.e., solvents, time, temperature) were studied in detail. The imprinted fiber showing the best performance in terms of selectivity and affinity for triazines was successfully applied to the extraction of target analytes from environmental and food samples.
PMID: 17370999 本人已认领该文编译，48小时后若未提交译文，请其他战友自由认领。 Title： Molecularly Imprinted Polymeric Fibers for Solid-Phase Microextraction
标题：分子印迹聚合纤维用于固相微萃取
Author： E. Turiel, J. L. Tadeo, and A. Martin-Esteban
作者：E. Turiel, J. L. Tadeo, 和 A. Martin-Esteban
Resource: Analytical Chemistry, 2007,79 ：3099 -3104.
文章来源：分析化学，2007,79 ：3099 -3104.
Abstract：Solid-phase microextraction (SPME) is widely used in analytical laboratories for the analysis of organic compounds, thanks to its simplicity and versatility. However, the current commercially available fibers are based on nonselective sorbents, making difficult in some cases the final determination of target compounds by chromatographic techniques.
摘要：因其简单实用，固相微萃取（SPME）在实验室分析中被广泛用于有机化合物分析。但由于目前的市售纤维均为非选择性吸附，使得某些以色谱方法对目标化合物进行最终分析的情况变得困难。
Molecularly imprinted polymers (MIPs) are stable polymers with selective molecular recognition abilities, provided by the template used during their synthesis. In the present work, a simple polymerization strategy allowing the obtainment of molecularly imprinted polymeric fibers to be used in SPME is proposed.
分子印迹聚合物（MIPs）是一种有选择性分子识别能力的稳定聚合物，其分子识别能力来自于合成过程中的模板。目前的研究工作提出一种简单聚合技术，通过该技术可得到用于SPME的分子印迹聚合纤维。
Such a strategy is based on the direct synthesis of molecularly imprinted polymeric fibers (monoliths) using silica capillaries as molds, with silica being etched away after polymerization. The system propazine: methacrylic acid was used as a model for the preparation of molecularly imprinted fibers, and its ability to selectively rebind triazines was evaluated.
这种技术以二氧化硅毛细管为模型直接合成分子印迹聚合纤维（单体），聚合完成后除去二氧化硅。2-氯-4,6-二(异丙氨基)-1,3,5-三嗪系统：用甲基丙烯酸做模型制备分子印迹纤维，并对其选择性吸附三嗪化合物的能力进行评估。
Variables affecting polymer morphology (i.e., polymerization time, fiber thickness) and binding-elution of target analytes (i.e., solvents, time, temperature) were studied in detail. The imprinted fiber showing the best performance in terms of selectivity and affinity for triazines was successfully applied to the extraction of target analytes from environmental and food samples.
详细研究影响聚合物形态（如聚合时间，纤维厚度）及被分析物吸附-洗脱能力（如溶剂，时间，温度）的变量。对三嗪环有最强选择性和亲和力的印迹聚合纤维被成功用于从环境和食品样品中提取被分析物。
PMID: 17370999 编译：（中文字符：361）
因其简单实用，固相微萃取（SPME）在实验室分析中被广泛用于有机化合物分析。但由于目前的市售纤维均为非选择性吸附，使得某些以色谱方法对目标化合物进行最终分析的情况变得困难。而分子印迹聚合物（MIPs）是一种有选择性分子识别能力的稳定聚合物，其分子识别能力来自于合成过程中的模板。E. Turiel等研究人员提出一种简单聚合技术，通过该技术可得到用于SPME的分子印迹聚合纤维。此技术以二氧化硅毛细管为模型直接合成分子印迹聚合纤维（单体），聚合完成后除去二氧化硅。2-氯-4,6-二(异丙氨基)-1,3,5-三嗪系统：用甲基丙烯酸做模型制备分子印迹纤维，并对其选择性吸附三嗪化合物的能力进行评估。详细研究影响聚合物形态（如聚合时间，纤维厚度）及被分析物吸附-洗脱能力（如溶剂，时间，温度）的变量。对三嗪环有最强选择性和亲和力的印迹聚合纤维被成功用于从环境和食品样品中提取被分析物。（Analytical Chemistry, 2007,79 ：3099 -3104.）（丁香） 谢谢ginnyran!
阅读本文的人还阅读：
作者:admin@医学,生命科学 2010-10-13 05:11
医学,生命科学网