固相微萃取的发展近况

固相微萃取（SPME）是一种新型的样品预处理方法，随着对此技术发展的深入理解，新型SPME装置不断得到应用和发展。本文对其原理、装置、应用和发展的现状进行了综述。     

固相微萃取研究进展

对固相微萃取的发展背景，应用及其研究进展作了综述。引用文献 145篇。     

固相微萃取的涂层进展

 对固相微萃取 (SPME)的固定相涂层的发展进行了综述。阐述了商品化和非商品化涂层的各自特点 ,并对涂层的选择性和SPME技术作了简单的介绍。     

聚硅氧烷富勒烯固相微萃取涂层的性能

高分子聚硅氧烷富勒烯首次被用作固相微萃取涂层材料,利用顶空固相萃取气相色谱法对该涂层进行了评价。与商用的聚二甲基硅氧烷相比,自制涂层在选择性、灵敏度、热稳定性、使用寿命及萃取量等方面的性能均优于商用聚二甲基硅氧烷。     

固相微萃取新技术

 固相微萃取是基于萃取涂层与样品之间的吸附 /溶解 解吸平衡而建立起来的集进样、萃取、浓缩功能于一体的技术。综述了固相微萃取技术的最新发展动态 ,介绍了管内 (in tube)固相微萃取、新型萃取头以及固相微萃取与其他分析技术的联用情况。     

离子液体和聚离子液体固相微萃取涂层制备及应用进展

固相微萃取(Solid-phase microextraction,SPME)技术因其具有操作简单、萃取时间短、无需有机溶剂、易于自动化操作等优点,成为近年来发展起来的一种新型样品前处理技术。涂层是SPME技术的核心,决定了涂层萃取的选择性和容量。离子液体和聚离子液体因具有环境友好、蒸汽压低、热稳定性好、设计灵活、粘度大等特点,已作为一类新的涂层材料广泛应用于SPME,并对各种分析物均展现出良好的萃取效果和选择性。本文从制备技术、形貌、选择性、稳定性、寿命、应用等方面综述了近年来离子液体和聚离子液体基SPME涂层的研究进展,对它们的优缺点进行了对比讨论,并对其未来发展方向进行了展望。     

新一代萃取分离技术──固相微萃取

介绍了一种新型样品制备法——固相做萃取（SPME）的原理及其应用。与其它样品制备技术相比,SPME法具有操作时间短、样品量小、无需萃取溶剂、适于分析挥发性与非挥发性物质、重视性好等优点。     

搅拌棒固相萃取的研究进展

作为一种新型的环境友好型样品前处理技术,搅拌棒固相萃取(SBSE)集萃取、净化和富集为一体,已经在环境监测、食品安全和生物分析等领域进行了广泛应用。本文结合作者所在研究小组的研究工作,对近几年来SBSE技术的发展进行综述,重点阐述了各种新涂层的研究和应用,同时就SBSE发展方向提出了展望。     

磁性固相萃取在检测抗抑郁药中的应用进展

作为治疗抑郁、焦虑、强迫等精神障碍疾病的主要药物,抗抑郁药的消耗量逐年增大.针对涉及抗抑郁药滥用的各类案件,物证鉴定人员需对药物的种类及含量进行分析.为准确、灵敏地检测实际检材中的抗抑郁药,样品前处理过程必不可少.磁性固相萃取采用比表面积大、分散性能好、可重复使用的各类功能化磁性材料作为吸附剂,因操作简单快速、萃取效率...     

近年国内固相萃取-色谱分析的进展

对近两年国内各个领域的学者在使用固相萃取做样品前处理的色谱分析方面的研究和应用作了综述, 这一综述包括10个部分: 1. 国内近两年有关固相萃取的综述报告;2. 固相萃取-色谱分析在水质分析中的应用;3. 固相萃取-色谱分析在奶制品和肉类食品分析中的应用;4. 固相萃取-色谱用于蔬菜和水果中有害物质分析的应用;5. 固相萃取-色谱用于粮食和其他食品中有害物质分析的应用;6. 固相萃取-色谱在血药浓度、体液及组织中有害物质分析中的应用;7. 固相萃取-色谱在药物分析中的应用;8. 固相萃取-色谱在其他使用色谱分析中的应用;9. 基质固相分散在色谱分析中的应用;10. 分子印迹SPE在样品前处理中的应用.     

固相微萃取-液相色谱联用技术研究进展

本文较系统地介绍了固相微萃取-液相色谱联用技术的原理、特点、发展现状及其发展趋势,并对该技术在样品前处理尤其是环境样品前处理中的应用作了较详细的综述     

固相微萃取技术与环境样品前处理

固相微萃取技术是80 年代末发展起来的一项新型的无溶剂化环境样品前处理技术, 它主要与气相色谱和高效液相色谱联用, 能快速和有效地分析环境样品中的痕量有机污染物。技术从出现至今主要在萃取装置(萃取纤维涂层)、萃取方式及后序分析仪器上有较大的发展和变化, 这使得技术的应用范围不断拓宽。通过对现有文献的总结, 本文还提出了固相微萃取技术今后的发展趋势。     

固相微萃取在生物-医药分析领域中的应用

对固相微萃取在生物－医药分析领域的研究发展进行综述，引用文献42篇。     

固相微萃取在药品和生物样品分析中的应用

 按被分析的样品的性质分类 ,对 2 0世纪 90年代发展起来的一种新型样品预处理技术固相微萃取技术在药品及生物样品分析中的应用实例进行了综述 ,共 6 0篇。     

Sol-Gel Method for the Preparation of Solid-Phase Microextraction Fibers

ABSTRACT

A novel sol-gel method is applied for the preparation of solid-phase microextraction (SPME) fibers. Scanning electron microscopy experiments suggested a porous structure for the poly(dimethylsiloxane) (PDMS) coating. SPME-GC analysis provided evidence that the sol-gel fibers have some advantages, such as high thermal stability, efficient extraction rates, high velocities of mass transfer, and spacious range of application.     

用溶胶-凝胶法制备PEG-20M固相微萃取探头

采用溶胶－凝胶方法制备了PEG－20M涂层的固相微萃取（SPME）探头并研究了它的特性。该探头具有耐温高,抗溶剂冲洗,使用寿命长的特点。由于PEG－20M的极性比较强,因此它对极性化合物如酚等有很好的萃取能力。用该探头测定了酚类物质,检出限达0．78－4．2ng/mL,线性范围为0．1－10μg/mL,相对标准偏差RSD＜6％。     

Solid-Phase Microextraction of Aliphatic Alcohols Based on Polyaniline Coated Fibers

The efficiency of polyaniline (PANI), coated gold wire was investigated for use as a fiber for solid-phase microextraction (SPME). Aniline monomers were electropolymerized on gold wires by applying a constant current to an acetate buffer containing NaClO₄ as supporting electrolyte for 30 min. These fibers were used for the extraction of some aliphatic alcohols from gaseous samples. The results obtained proved the ability of PANI fiber for sampling organic compounds from gaseous samples. From this work, optimum conditions for preparation and conditioning of fibers and for the extraction of analytes from gaseous samples were obtained. Under optimum conditions, one fiber was used for several equivalent analyses and the relative standard deviations (RSD) were <7% (n=6). However, fiber to fiber reproducibility was <9% (n=6). This fiber is firm and durable and is simply prepared. Calibration graphs were linear in the range: 0.1–10 g mL^–1 for aliphatic alcohols; the detection limit range was 15–75 ng mL^–1 (S/N=3) using a flame ionization detector.     

In-Loop Solid-Phase Microextraction Coupled with High Performance Liquid Chromatography

A new in-loop solid-phase microextraction coupled with high performance liquid chromatography was developed for a fast and easy on line extraction, pre-concentration and LC analysis of moderately polar compounds from non-polar solvents. The inner surface of a long and small bore aluminum tube was electrochemically coated by Al₂O₃ and used as a new in-tube SPME device which can be also replaced to the injection loop in LC to achieve automated in-loop SPME-LC analysis. Large volume of n-hexane containing trace amounts of phenol and biphenyl was passed through the loop. The analytes were then desorbed by a small volume of methanol and introduced into chromatographic column. This technique was successfully used to analyses of different groups of moderately polar compounds. In this work, phenol and biphenyl were selected as the model compounds. Effect of various parameters affecting in-loop solid-phase microextraction and chromatographic procedure were investigated. Under the optimum conditions the calibration graph were linear in the range of 10–1000 ng mL^?1 and 50–1500 ng mL^?1 the detection limits were 2.5 and 8 ng mL^?1 for phenol and biphenyl, respectively. The relative standard deviations (RSDs) were < 2.4 and < 4.9% for phenol and biphenyl respectively. Concentration factor obtained for these compounds were more than 100 folds. The prepared SPME capillary tube (loop) is sturdy, inexpensive, and durable, and can be easily coupled with LC.     

用于磷酸酯和甲基膦酸酯类化合物测定的固相微萃取新型涂层

以羟基硅油和二乙烯基苯为涂层材料 ,采用溶胶 凝胶技术和自由基引发交联的方法制备了一种新型的固相微萃取探头。采用顶空固相微萃取与气相色谱联用的方法模拟检测了水中磷酸酯和甲基磷酸酯类化合物。与商品化固相微萃取探头相比 ,该新型涂层可获得高的萃取效率。甲基膦酸二甲酯、磷酸三甲酯和磷酸三丁酯的最低检测限分别为 0 34,2 2 0和 0 0 1mg/L,相对标准偏差为 3 6 7%～ 6 4 4 % ,线性范围为 1～ 2个数量级 ,方法重现性好 ,回收率为 89 4 6 %～ 90 88%。