共查询到20条相似文献,搜索用时 93 毫秒
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Toyo'oka T 《Biomedical chromatography : BMC》2008,22(9):919-930
This review summarizes the determination methods for histamine and the metabolites in biological specimens by separation techniques, such as gas chromatography, liquid chromatography and capillary electrophoresis. The typical applications using these methods are also described in this review together with the characteristics of the methods. Copyright (c) 2008 John Wiley & Sons, Ltd. 相似文献
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混合模式色谱分离材料的研究及其应用进展 总被引:1,自引:0,他引:1
近年来混合模式色谱以其独特的分离特性受到人们越来越多的关注。混合模式色谱的种类主要集中在反相/离子交换混合模式色谱(reversed-phase/ion-exchange mixed-mode chromatography, RPLC/IEX),亲水作用/离子交换混合模式色谱(hydrophilic interaction/ion-exchange mixed-mode chromatography, HILIC/IEX),反相/亲水作用混合模式色谱(reversed-phase/hydrophilic interaction mixed-mode chromatography, RPLC/HILIC)等混合模式。两种或多种机理混合使用,往往在分离选择性和色谱峰形等方面能得到不同于单一模式操作所得到的效果,分离选择性以及色谱峰形等都能得到极大的改善与提高,这使得混合模式色谱渐渐进入研究者们的视野。混合模式色谱的研究多数集中在色谱填料的设计。混合模式色谱填料的应用主要针对生物样品的分离分析。该文综述了近年来混合模式色谱的研究及其应用进展,并展望了混合模式色谱的发展。 相似文献
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Affinity monolith chromatography (AMC) is a liquid chromatographic technique that utilizes a monolithic support with a biological ligand or related binding agent to isolate, enrich, or detect a target analyte in a complex matrix. The target-specific interaction exhibited by the binding agents makes AMC attractive for the separation or detection of a wide range of compounds. This article will review the basic principles of AMC and recent developments in this field. The supports used in AMC will be discussed, including organic, inorganic, hybrid, carbohydrate, and cryogel monoliths. Schemes for attaching binding agents to these monoliths will be examined as well, such as covalent immobilization, biospecific adsorption, entrapment, molecular imprinting, and coordination methods. An overview will then be given of binding agents that have recently been used in AMC, along with their applications. These applications will include bioaffinity chromatography, immunoaffinity chromatography, immobilized metal-ion affinity chromatography, and dye-ligand or biomimetic affinity chromatography. The use of AMC in chiral separations and biointeraction studies will also be discussed. 相似文献
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Monolithic stationary phases have revolutionized protein chromatography because they combine speed, capacity, and resolution in a unique manner. Since such stationary phases contain no particles but only flow‐through pores, the usual mass transfer restrictions to the chromatography of large molecules are not observed and extremely fast separations become possible. Recently the area of application of monolith chromatography has been extended to the separation and analysis of small molecules and plasmid DNA. This review summarizes the state of art in high performance monolith and especially high performance monolithic disk chromatography (HPMDC). The current understanding of the theory of protein HPMDC is summarized, while an introduction to the evolving field of small molecule HPMDC is attempted. The basic differences between the monolithic disks and columns packed with conventional stationary phases (including perfusion and micropellicular particles) but also monolithic columns (porous rods) are outlined. Finally, the potential of HPMDC to analytical and preparative biochromatography is demonstrated by a discussion of recent applications of chromatographic disks for protein isolation and bioprocess analysis. 相似文献
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I. L. Davies K. E. Markides M. L. Lee M. W. Raynor K. D. Bartle 《Journal of separation science》1989,12(4):193-207
Although coupled liquid chromatographygas chromatography (LC-GC) was first demonstrated ten years ago, only in the last few years has there been a sudden surge of interest in the technique. Approximately 70% of the total number of LC-GC applications have been published in the last two years (1987–88) alone. This review categorizes LC-GC publications into four main application areas: fossil fuels, foods, environmental samples, biologiical/pharmaceutical samples, and miscellaneous samples. Multidimensional separations carried out using other coupled-column chromatographic techniques (such as supercritical fluid chromatography (SFC) with GC, and on-line trace enrichment-GC) have also been included in this review. 相似文献
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Meire R. Silva Felipe N. Andrade Bruno H. Fumes Fernando M. Lanças 《Journal of separation science》2015,38(17):3071-3083
The concept of unified chromatography has been in existence for 50 years after the work of Giddings proposing that all modes of chromatography (gas chromatography, liquid chromatography, supercritical fluid chromatography and so on) may be treated together under a single unified theory. His idea was partially fulfilled 23 years later by Ishii, Takeuchi and colleagues, who demonstrated for the first time the possibility to analyze a complex sample containing substances with a wide range of boiling points and polarities in the same instrument and column, just by varying the mobile phase pressure and temperature to change from one chromatographic mode to another. This approach has been demonstrated through application to the separation of complex mixtures in several areas including crude oil, edible oils and polymers. Still, unified chromatography has not yet been fully developed. In the present work, we will review the fundamentals, instrumentation and several applications of the technique. Also discussed are the drawbacks that still hinder development, as well as the recent developments and trends in instrumentation and columns that suggest the most feasible ways forward to the full development of unified chromatography. 相似文献