《气相色谱在石油化工中的应用》

该书是色谱金属丛书中气相色谱在石油化工中的应用篇,针对石化分析的主要应用范围分别对一些重要的应用方法作了详尽的描述,重点讨论了各种方法的特点,总结了实际应用的经验。该书选择的方法兼顾了生产控制、产品标准     

取向碳纳米管制备方法及其应用进展*

碳纳米管有广阔的应用前景,但很多应用是以碳纳米管定向的取向排列为前提.本文全面介绍了制备取向碳纳米管的各种方法和研究进展,综合阐述了各种制备方法的特点,并初步讨论了制备取向生长碳纳米管各种方法的机理.最后,对取向碳纳米管的应用进行了展望,提出了碳纳米管应用的新思路.     

毛细管电泳在毒品分析中的应用

综述了近年来毛细管电泳(CE)在毒品分析中的应用进展,介绍了不同的CE模式并给出了应用实例,展望了CE在毒品分析中的应用前景.     

烟草近红外光谱分析网络化及其应用进展

该文回顾了近红外光谱(NIRS)分析技术的应用历程以及"近红外光谱分析+互联网"模式在烟草领域中的应用研究与实践,探讨了在近红外光谱分析网络化环境中,近红外光谱仪器设备存在的硬件差异以及常规化学计量学方法(算法)在建模、数据处理存在的不足对近红外光谱的深度应用产生的影响,并提出了近红外光谱分析云计算应用的解决思路。最后,对大数据时代近红外光谱分析网络化模式的应用前景进行了展望。     

含硫壳聚糖衍生物的应用研究进展

本文综述了近年来含硫壳聚糖衍生物的制备及应用研究进展,主要介绍了巯基化壳聚糖、硫脲衍生物修饰壳聚糖在金属离子吸附分离中的应用及磺化壳聚糖在生物医药方面的应用。     

离子液体在生物柴油合成中的应用进展

介绍了合成生物柴油常用的酯交换方法以及离子液体的定义、结构、性质和制备方法, 简单描述了酸性离子液体作为催化剂在酯化反应中的应用, 综述了离子液体在生物柴油合成中的应用进展并展望了其应用前景.     

金属卟啉类模拟酶催化剂研究

对金属卟啉化合物在催化氧化反应中的应用和机理方面的最新研究成果进行了详细的阐述,并概述了量化计算方法在金属卟啉分子设计、结构及催化活性等方面的应用.也介绍了本课题组在上述领域的最新研究成果.预测了金属卟啉化合物在催化领域的应用前景.     

手性离子液体在有机合成中的应用

近年来,手性离子液体的应用研究取得了重要进展,新的手性离子液体的不断涌现促使人们对其应用研究的兴趣不断提高.本文综述了手性离子液体在有机合成中应用研究的新进展.     

植物绿原酸的研究进展

介绍了绿原酸的性质、作用、提取、应用,揭示了绿原酸具有潜在的、广阔的应用前景。     

毛细管电泳技术在药物分离分析中的研究与应用

综述了近5年毛细管电泳在手性药物拆分、药物制剂及中草药分析中的应用.在手性药物拆分的应用中主要探讨了手性选择剂的种类及毛细管分离方法;在药物制剂、中草药的应用中主要介绍该法对药效成分进行的分离及定量分析,总结方法的检出限、线性范围和检测方法;最后,探讨了毛细管电泳在求取药物水解常数上的应用.提出毛细管电泳在药物分析中将有广阔的应用前景.     

Use of modifiers in on-line and off-line supercritical fluid extraction

For many applications using supercritical fluid extraction (SFE), modifiers may be required.This paper will present some findings regarding the use of various modifiers including methanol, hexane, acetone, chloroform, dichloromethane, toluene, and tributylphosphate, in on-line and off-line SFE with cryogenic adsorbent trapping. The specific applications involved the extractions of petroleum hydrocarbons and pesticides from naturally incurred soils.     

Supercritical fluid extraction in herbal and natural product studies - a practical review

Due to increasingly stringent environmental regulations, supercritical fluid extraction (SFE) has gained wide acceptance in recent years as an alternative to conventional solvent extraction for separation of organic compounds in many analytical and industrial processes. In the past decade, SFE has been applied successfully to the extraction of a variety of organic compounds from herbs and other plants. This review article presents the practical aspects of SFE applications in sample preparation, selection of modifiers, collection methods, on-line coupling techniques, means for avoiding mechanical problems, and approaches to optimization of SFE conditions. SFE can also be used to clean up pesticides from herb medicines. SFE processes can be modeled to acquire useful information for better understanding of the extraction, mechanisms and optimization of the extraction procedures. With increasing public interest in natural products, SFE may become a standard extraction technique for studying herbal, food and agricultural samples.     

Supercritical fluid extraction of polyhalogenated pollutants from aquaculture and marine environmental samples: a review

This article focuses on the state-of-the-art in sample preparation using supercritical fluid extraction (SFE), to monitor the content of polyhalogenated pollutants in aquaculture and marine environmental samples. Marine sediments and biological applications, including several types of samples matrices (fish, shellfish, seaweed and fish feed) and analyte groups (polychlorinated biphenyls (PCBs), polybrominated biphenyls (PBBs), polybrominated diphenylethers (PBDEs), polychlorinated dibenzo-p-dioxin (PCDD)/Fs and organochlorinated pesticide (OCPs)) are discussed with respect to SFE use and optimisation of conditions. We also discuss the great analytical potential of SFE, the integration of the extraction and clean-up steps for rapid sample processing justifying its use for routine work. The most recent SFE applications to the determination of these pollutants in marine environmental (biota and sediment) samples, published in the last 15 years, are reviewed.     

Supercritical fluid extraction in plant essential and volatile oil analysis

The use of supercritical fluids, especially carbon dioxide, in the extraction of plant volatile components has increased during two last decades due to the expected advantages of the supercritical extraction process. Supercritical fluid extraction (SFE) is a rapid, selective and convenient method for sample preparation prior to the analysis of compounds in the volatile product of plant matrices. Also, SFE is a simple, inexpensive, fast, effective and virtually solvent-free sample pretreatment technique. This review provides a detailed and updated discussion of the developments, modes and applications of SFE in the isolation of essential oils from plant matrices. SFE is usually performed with pure or modified carbon dioxide, which facilitates off-line collection of extracts and on-line coupling with other analytical methods such as gas, liquid and supercritical fluid chromatography. In this review, we showed that a number of factors influence extraction yields, these being solubility of the solute in the fluid, diffusion through the matrix and collection process. Finally, SFE has been compared with conventional extraction methods in terms of selectivity, rapidity, cleanliness and possibility of manipulating the composition of the extract.     

Qualitative supercritical fluid extraction coupled to capillary gas chromatography

The usefulness and ease of utilizing supercritical fluid extraction (SFE) directly coupled to capillary gas chromatography (GC) as quantitative or qualitative analytical problem-solving tools will be demonstrated. As an alternative to conventional liquid solvent extractions, SFE presents itself as a means to achieve high extraction efficiencies of different compounds in complex solid matrices in very rapid tims frames. Moreover, SFE has an additional advantage of being able to achieve distinct extraction selectivities as a function of the solubilizing power of the supercritical fluid extracting phase. For on-line SFE/GC, the extraction effluent is directly transferred to the analytical chromatograph. On-line SFE/GC involves the decompression of pressurized extraction effluent directly into a heated, unmodified capillary split injection port of the GC. In this respect, SFE introduction into GC can be used as an alternative means of GC injection, comparable to such modes of injection as pyrolysis and thermal desorption. This paper will show applications of SFE/GC where mass spectrometric detection together with flame ionization detection was used for component identification from environmental, tobacco, and petroleum matrices.     

食品中农药残留分析的样品前处理技术进展*

本文综述了近年来食品中农药残留分析的样品前处理技术,重点对超临界流体萃取法在食品农药残留分析中的应用及其联用技术进行了评述;同时对固相微萃取、微波辅助萃取和凝胶渗透色谱法进行了总结。对食物中农药残留分析技术的发展方向进行了讨论。     

Supercritical fluid extraction: Recent advances and applications

Among the different extraction techniques used at analytical and preparative scale, supercritical fluid extraction (SFE) is one of the most used. This review covers the most recent developments of SFE in different fields, such as food science, natural products, by-product recovery, pharmaceutical and environmental sciences, during the period 2007–2009. The revision is focused on the most recent advances and applications in the different areas; among them, it is remarkable the strong impact of SFE to extract high value compounds from food and natural products but also its increasing importance in areas such as heavy metals recovery, enantiomeric resolution or drug delivery systems.     

超临界流体萃取与其它分析技术的联用

用超临界流体萑取进行分析样品处理，有快速，高效，低消耗，污染少等优点。本文对ＳＦＥ的原理，特点，与其它技术的联用及其在分析化学诸领域的应用作了综述，其中重点介绍了ＳＦＥ与色谱技术的在线联用，内容包括接口等。     

A Unified Sample Preparation System for Extraction of Various Analyte/Matrix Combinations

A supercritical fluid extraction/enhanced solvent extraction system (SFE/ESE) was used to remove polar and non-polar analytes from various matrices. Extraction of environmental pollutants from soil, additives from low density polyethylene, sulfa drugs from animal tissue, and drug from tablet was performed using both SFE and ESE. Results showed that a single instrumental system can be used to perform both ESE with organic solvents and SFE with carbon dioxide-based fluids. Each method has its own unique advantages and applications. The ability to carry out both solvent extraction and supercritical fluid extraction with one system has obvious economical advantages.