样品分析中分子印迹固相萃取的新技术进展

发布时间：2017-12-28 17:35

本文关键词：样品分析中分子印迹固相萃取的新技术进展　出处：《色谱》2016年03期 　论文类型：期刊论文

【摘要】：正样品前处理是通过提取、除杂、浓缩等步骤,将目标物与复杂样品基质分离开来,以提高检测灵敏度的一种样品处理方法。作为整个样品检测中最耗时的一个环节,样品前处理关系着整个分析方法的优劣,直接影响分析结果的准确度和精密度。固相萃取(solid-phase extraction,SPE)由于其形式多样、操作简单、对环境友好、易实现自动化、有机溶剂用量少、回收率和富集倍数高等优点,目前已被公认为使用大型仪器分析检测前对样品进行预处理的首选方法。固相萃取利用固体吸附剂来吸附液体样品中的目标物,使其与样品基质分离,然后再对吸附剂进行洗脱或加热解吸附,避免了很多传统萃取中两相不相容的缺点,实现了分离与富集目标物的目的。
[Abstract]:The sample pretreatment is a sample processing method to separate the target from the complex sample by extracting, removing impurity and concentrating. As the most time-consuming part of the whole sample detection, sample pretreatment is related to the advantages and disadvantages of the whole analysis method, and directly affects the accuracy and precision of the analysis results. Solid phase extraction (solid-phase extraction SPE) because of its diversity, simple operation, friendly to environment, easy automation, low consumption of organic solvents, recovery and enrichment factor etc., at present has been recognized as the large-scale instrument detection and analysis before the preferred method for sample pretreatment. Solid phase extraction for the adsorption of target compounds in liquid samples using solid adsorbent, separating it from the sample matrix, then the adsorption elution or heating desorption, avoids the defects of two incompatible many traditional extraction, the separation and enrichment of target.
【作者单位】：中国科学院兰州化学物理研究所中国科学院西北特色植物资源化学重点实验室;中国科学院大学;
【分类号】：O631.3;O658.2
【正文快照】： 样品前处理是通过提取、除杂、浓缩等步骤,将目标物与复杂样品基质分离开来,以提高检测灵敏度的一种样品处理方法。作为整个样品检测中最耗时的一个环节,样品前处理关系着整个分析方法的优劣,直接影响分析结果的准确度和精密度。固相萃取(solid-phase extraction,SPE)由于其形

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