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1.
灌注色谱法的发展和应用   总被引:2,自引:0,他引:2  
熊博晖  王俊德 《色谱》1997,15(6):486-489
介绍了灌注色谱法的发展、应用及其相关技术,并对灌注色谱法的特征、理论和应用作了评述。  相似文献   

2.
氟离子仪器分析方法研究进展   总被引:1,自引:0,他引:1  
倪承珠  姜新华  李刚  张嘉捷  张培敏  朱岩 《色谱》2016,34(10):942-945
近几年社会公众对氟离子的关注度显著提高,氟离子含量的检测技术也在不断更新和发展。该文介绍了氟离子含量测定的各类仪器分析技术及其优缺点,主要包括氟离子选择电极法、离子色谱法、反相-高效液相色谱法以及气相色谱法。  相似文献   

3.
综述饮料中合成着色剂的测定方法,包括高效液相色谱法、分光光度法、薄层色谱法等技术方法,对上述方法进行了比较分析。与其它方法相比,高效液相色谱法灵敏度、精密度、准确度更高,操作简单,适合大批量样品检测,更易推广。由高效液相色谱法衍生出的超高效液相色谱、液相色谱–质谱联用法、绿色高效液相色谱法以及探索快速、高效、稳定、准确、环保的前处理方法是未来技术发展的趋势。  相似文献   

4.
本文简要介绍了腌制食品中N-亚硝胺类化合物的种类及特性,重点综述了气相色谱法、气相色谱-质谱法、液相色谱法、液相色谱-质谱法和胶束电动毛细管色谱法等技术在腌制食品中N-亚硝胺类化合物分析中的应用进展(引用文献39篇)。  相似文献   

5.
介绍了墨水书写时间的鉴定,其中包括墨水书写时间鉴定的依据,取样以及样品制备技术,墨水书写时间鉴定的方法,包括化学分析方法、光度法、薄层色谱法、气相色谱法、高效液相色谱法、质谱法、毛细管电泳法及色谱质谱联用法。  相似文献   

6.
气相色谱法测定汽油烃类组成分析技术的应用现状与发展   总被引:8,自引:0,他引:8  
李长秀  刘颖荣  杨海鹰  陆婉珍 《色谱》2004,22(5):521-527
对气相色谱法测定汽油馏分烃类组成分析技术的应用现状和发展进行了系统评述。分别对高分辨毛细管气相色谱法、多维气相色谱法和溴加成结合气相色谱-原子发射光谱检测法测定汽油烃类组成的特点和存在的问题进行了讨论,并提出了一些解决方案。  相似文献   

7.
对国内药物分析在2005~2006年的主要进展进行评述。内容包括高效液相色谱法、气相色谱法、毛细管电泳法、薄层色谱法、分光光度法和其它分析方法等。另外,对高效液相色谱法和气相色谱法的不同联用技术进行分别评述。共引用文献3294篇。  相似文献   

8.
对国内药物分析在2005~2006年的主要进展进行评述。内容包括高效液相色谱法、气相色谱法、毛细管电泳法、薄层色谱法、分光光度法和其它分析方法等。另外,对高效液相色谱法和气相色谱法的不同联用技术进行分别评述。共引用文献3294篇。  相似文献   

9.
薄层色谱法(TLC)具有简便快速,分离效果好,检出灵敏度高,可以用于制备、定性和定量等特点,因此,近二十年来发展迅速,得到了广泛的应用。但是近几年来,由于高效液相色谱法(HPLC)的快速发展,人们趋向于视薄层色谱法为廉价的和易于采用的、但不能完成困难分离的所谓“二等”技术。但是必须指出,薄层色谱法的这些缺陷并不是方法本身所固有的,而仅仅是由于薄层色谱法一直沿用传统的操作方法,因而使它的分离效能低于高效液相色谱法。随着薄层色谱板和检测方法的改进,以及采用新的操作技术,现在已经出现了高效薄层色谱法(HPTLC),其分离效能完全可以与气相色谱法及高效液相色谱法相比拟。所谓“高效薄层色谱法”实际上就是固定相平均颗粒直径约为5μm的薄层色谱法,其主要特  相似文献   

10.
对国内(不含港、澳、台地区)药物分析在2008至2009年的主要进展进行综述。内容包括高效液相色谱法、气相色谱法、毛细管电泳法、薄层色谱法、分光光度法和其它分析方法等。另外,对高效液相色谱法和气相色谱法的不同联用技术进行分别评述。共引用文献3392篇。  相似文献   

11.
Separation techniques with high efficiency and sensitive detection have been widely used for quality control of traditional Chinese medicines (TCMs). High-performance liquid chromatography, gas chromatography, and capillary electrophoresis are commonly used to separate various components in TCMs. Ultraviolet detection, fluorescence detection, evaporative light-scattering detection, mass spectrometry and nuclear magnetic resonance can be applied to separation techniques for qualitative and quantitative analysis of TCMs. The development of quality control for TCMs based on quantitative and qualitative analysis from 2000 to 2007 are reviewed; the fingerprint technique is also discussed due to its broad application in the quality control of TCMs. Prospects for further research based on our primary results are also discussed.  相似文献   

12.
许国旺  路鑫  孔宏伟  石先哲  赵欣捷  田晶  卢果 《色谱》2005,23(5):449-455
随着科学技术的发展,色谱专家系统作为一种人工智能方法亦在不断发展,并在实际工作中发挥着越来越重要的作用。该文综述了作者的研究小组在色谱专家系统研究方面的进展,重点介绍从研究气相色谱专家系统开始,到应用色谱专家系统的思想,运用气相色谱、液相色谱和毛细管电泳新技术解决石化、环境、疾病诊断、基因分析和药物分析等领域实际问题的工作。引用相关文献64篇。  相似文献   

13.
Sterilization by irradiation techniques is considered to be an improved method to treat polluted products of human consumption. Secondary effects, that may be generated in the components of packaging materials, could induce organoleptic damage and some physico-chemical modifications, observed especially in plastic materials. In order to demonstrate any such secondary changes, we have investigated the effects of beta-irradiation (a treatment which could induce either a reticulation or a cleavage in a polymeric sequence) on three polymers; namely, low density polyethylene, polystyrene and polyvinyl chloride. The techniques used to identify irradiation-induced modifications of these polymers were size exclusion chromatography and thermal analysis. Thermal analysis showed a decrease in the percentage of crystallinity of polyethylene after its radiosterilization. Exclusion chromatography highlighted a reticulation for irradiated polyvinyl chloride and polystyrene.  相似文献   

14.
土壤中砷形态分析研究进展   总被引:1,自引:0,他引:1  
本文评述了近年来国内外土壤中砷形态分析的主要研究方法,包括联用分析法、分级提取法和同步辐射X-射线线吸收光谱法。联用分析法包括气相色谱联用法、毛细管电泳联用法和高效液相色谱联用法。重点介绍了目前应用范围较广的高效液相色谱-等离子体质谱(HPLC-ICP-MS)联用法和高效液相色谱-氢化物发生-原子荧光光谱(HPLC-HG-AFS)联用法。同步辐射X-射线线吸收光谱法近几年发展迅速,是最具发展潜力的形态分析方法。  相似文献   

15.
Method qualification is a key step in the development of routine analytical monitoring of pharmaceutical products. However, when relying on published monographs that describe longer method times based on older high‐performance liquid chromatography column and instrument technology, this can delay the overall analysis process for generated drug products. In this study, high‐throughput ultrahigh pressure liquid chromatography techniques were implemented to decrease the amount of time needed to complete a 24‐run sequence to identify linearity, recovery, and repeatability for both drug assay and impurity analysis in 16 min. Multiple experimental parameters were tested to identify a range of experimental settings that could be used for the sequence while still maintaining this fast analysis time. The full sequence was replicated on a different system and with different columns, further demonstrating its robustness.  相似文献   

16.
介绍了近十年来国内外植物样品中包括药用植物中砷的形态分析研究进展。由于植物中的砷含量甚低,其主要的检测手段是:氢化物电感耦合等离子体原子吸收光谱法(HG-ICP-AAS)、高效液相色谱-等离子体质谱法(HPLC-ICP-MS)、氢化物原子荧光光谱法(HG-AFS)。  相似文献   

17.
食品中农药残留分析的样品前处理技术进展*   总被引:38,自引:0,他引:38  
易军  李云春  弓振斌 《化学进展》2002,14(6):415-424
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。  相似文献   

18.
Advances in the use of thin layer and high-performance thin-layer chromatography for analysis of inks and ink writings in forensic investigations are reviewed. Experimental materials and techniques such as sample preparation, layers, sample application, development, detection, documentation, and interpretation of results are described and selected applications for several ink types are given. Some additional analytical techniques that complement thin-layer chromatography are also mentioned. Citations to important literature, from 2008 to 2016, are included.  相似文献   

19.
High‐resolution separation systems are essential for the analysis of complex mixtures in a wide variety of application areas. To increase resolution, multidimensional chromatographic techniques have been one key solution. Supercritical fluid chromatography provides a unique opportunity in these multidimensional separations based on its potential for high solvent compatibility, rapid duty cycles, and orthogonality to other separation modes. This review focuses on two‐dimensional chromatography methods from the past decade that use supercritical fluid chromatography because of these advantages. Valving schemes and modulation strategies used to interface supercritical fluid chromatography with other liquid chromatography and gas chromatography techniques are described. Particular applications of multidimensional separations using supercritical fluid chromatography for the analysis of oils and chiral separations of pharmaceutical compounds are highlighted. Limitations of and a potential trajectory for supercritical fluid chromatography in this field are also discussed.  相似文献   

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