共查询到18条相似文献,搜索用时 354 毫秒
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中药炮制是中药学的特色和优势,也是最具我国自主知识产权的学科之一.中药炮制研究的核心是阐明中药炮制机理,这也是制约中药现代化的关键节点.目前大部分中药的炮制机理尚不明确,有待进行系统深入的研究.咖啡豆需要烘培后才可以制成饮料,这个高温烘培过程类似于中药的炮制过程.近年来,国内外专家对咖啡豆高温烘培过程化学成分变化及其机理进行了深入研究,各种新方法和新技术得到广泛应用,取得了系列研究成果,这些研究成果为中药炮制机理研究提供了多种新思路和新方法,也为中药炮制机理的研究和阐明提供了重要示范. 相似文献
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中药炮制过程化学机理研究 总被引:9,自引:0,他引:9
中药炮制是中国的一项传统制药技术,也是中药区别于天然药物的显著特点。中药材经过加工炮制以后发生了复杂的化学变化,随着这些化学变化而改变的物质基础是中药炮制前后性味、功能改变的重要原因。阐明中药炮制过程中发生的这些化学变化是中药炮制机理研究的主要内容。近年来,国内外很多研究机构对中药炮制过程的化学机理进行了深入研究,初步阐明了多味中药炮制过程中发生的化学反应及化学成分变化,主要的化学反应包括水解反应、氧化反应、置换反应、异构化反应和分解反应等。本文对近年来中药炮制过程中化学反应机理领域取得的研究成果进行了综述,并对中药炮制过程化学机理研究的方向及前景进行了探讨。 相似文献
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综述了光谱类、电镜类、烟气分析仪以及热重分析仪等现代大型分析测试仪器在煤炭燃烧机理研究中的应用现状,并就该领域对现代分析测试仪器的发展要求进行了分析。 相似文献
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中药配方颗粒红外指纹图谱研究 总被引:16,自引:0,他引:16
采用傅里叶变换红外光谱(FTIR)技术分析鉴别了350种中药配方颗粒红外指纹图谱的结构特征。结果表明,借助于各种药用植物和动物配方颗粒的FTIR指纹图谱的差别可进行快速分类鉴别;根据配方颗粒与中药原药材谱图之间的相关性,以及中药材经过炮制、加热、水提处理后,配方颗粒与原药材之间在谱图上所代表的化学成分上的异同可以进行中药配方颗粒的质量控制;凭借不同炮制方法与未经炮制处理的配方颗粒间FTIR谱图的差别,可以进一步分析炮制后配方颗粒化学成分的变化,不同炮制方法对配方颗粒化学成分的影响;对于不同厂家的配方颗粒及同一厂家不同生产批号的配方颗粒也进行了较系统的分析研究。方法快速,简便,专属性强,不需对样品进行分离提取。 相似文献
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中药补气与活血分子作用机理的计算机模拟 总被引:2,自引:0,他引:2
采用分子相似性分析、分子对接和生物网络技术等计算机模拟方法对治疗冠心病的中药活血与补气的分子作用机理进行研究. 结果表明, 计算机模拟方法可以体现化合物的结构差异, 并提示中药中化学成分与相关靶标相互作用的分子机理, 而生物网络的构建和分析可以将化学成分的聚类、差异, 以及有效成分与相关靶标的复杂分子作用机理可视化. 相似文献
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韩军 《分析测试技术与仪器》2011,17(4):235-240
现代分析技术以仪器分析为主,大量先进的现代仪器分析技术已经广泛地应用于纺织品及皮革分析。介绍了气相色谱(GC)、液相色谱(LC)、色谱质谱联用(GC-MS、LC-MS)、原子吸收(AAS)、电感耦合等离子发射光谱(ICP-OES)等现代仪器分析技术在纺织品及皮革分析中的研究进展与应用。 相似文献
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Egon Fahr 《Analytical and bioanalytical chemistry》1976,281(1):1-8
Instrumental analysis is a modern part of analytical chemistry and an auxiliary science to chemistry, biology, geology, mineralogy, archeology, art sciences, clinical chemistry and medicine. To demonstrate trends and problems of instrumental analysis new techniques of absorption spectroscopy, NMR spectroscopy and mass spectrometry, possibilities of computer application and new technologies are discussed. 相似文献
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中医药现代化对分析化学的机遇与挑战 总被引:3,自引:0,他引:3
综述了多种分析方法在中医药现代化中的重要作用,内容包括中药面临的机遇与挑战,中药市场及所存在的问题,当前在中药鉴别、分离、提纯以及复方药效的研究常用的分析方法,中药指纹图谱以及残留农药的检测。引用文献183篇。 相似文献
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Chromatographic fingerprinting technique of traditional Chinese medicine (TCM) has proved to be a comprehensive strategy for assessing the intact quality of herbal medicine. In general, one could use the chromatographic techniques to obtain a relatively complete picture of herbal medicines, which are in common called chromatographic fingerprints of herbal medicines to represent the so-called phytoequivalence. Based on this, the features of chromatographic fingerprints of herbal medicines have been discussed in some detail. The technique based on chromatographic fingerprinting is essentially a kind of high-throughput and integral tools to explore the complexity of herbal medicines. In order to further control the comprehensive quality of TCMs, some new strategies are proposed to trace the chemical changes of chromatographic fingerprints both in product processing and/or after their administration by modern chromatographic techniques and chemometrics. Combined with metabolomics, it seems possible for one to reveal the working mechanism of TCMs and to further control their intrinsic quality. Finally, the intensive study of chromatographic fingerprinting coupled with multivariate analysis tools developed in bioinformatics and chemometrics are emphasized in order to achieve the aim to reveal the working mechanisms of TCMs and to further control and strengthen TCMs' intrinsic quality in a comprehensive manner. 相似文献
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Claudia Niegel 《Analytica chimica acta》2010,657(2):83-12968
Arsenic-containing carbohydrates, generally termed arsenosugars, have been the subject of increasing analytical interest in arsenic speciation analysis. The present review gives an overview concerning achievements and trends in the field of instrumental analysis of arsenosugars. The typical experimental approaches for sample pre-treatment, extraction, separation and detection are discussed. Current possibilities and limitations of modern instrumental techniques are pointed out. 相似文献
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Aside from HPLC and GC, capillary electrophoresis (CE) is one of the most important techniques for high-performance separations in modern analytical chemistry. Its main advantages are the possibility of using different detection techniques, the possibility of in-capillary sample processing for preconcentration or derivatization, and ease of instrumental miniaturization down to the microfluidic scale. Those features are utilized in the separation of macromolecules in biochemistry and in genetic investigations, but they can be also used in determinations of inorganic ions in water analysis. This review, based on about 100 original research works, presents applications of CE methods in water analysis reported in recent decade, mostly regarding conductivity detection or indirect UV detection. The developed applications include analysis of high salinity sea waters, as well as analysis of other surface waters and drinking waters. 相似文献