止痛化癥颗粒中延胡索质量标准研究

目的:提高止痛化癥颗粒质量标准。方法:采用薄层色谱法对制剂中的延胡索药材进行薄层鉴别。结果:采用新的处理方法薄层色谱图中样品斑点更清晰。结论:所建立的方法可靠、准确、重现性好,更有效的控制止痛化癥颗粒的质量。     

九味肾清颗粒的薄层鉴别研究

目的:建立九味肾清颗粒的薄层色谱(TLC)鉴别方法,为控制其产品质量提供依据。方法:采用薄层色谱对方中的大黄、积雪草、黄连进行定性鉴别。结果:在TLC色谱中均能检测出大黄、积雪草、黄连。结论:定性方法准确可行,重复性好,该方法可作为该品种的质量标准。     

蒲公英配方颗粒质量标准控制研究

通过对10批次蒲公英有效成分进行检测,目的是建立蒲公英配方颗粒质量标准控制。方法以蒲公英有效成分提取原理制成蒲公英供试品,采用高效液相色谱法(HPLC)测定其咖啡酸的含量,应用薄层色谱法对其所含咖啡酸进行鉴别。对三批样品进行鉴别,结果薄层色谱斑点清晰,重现性较好,本文应用该方法作为蒲公英的鉴别方法。     

茯神薄层鉴别方法研究

目的:为了建立茯神薄层鉴别方法,完善茯神的地方质量标准。方法:采用薄层色谱法(TLC),展开剂:氯仿-环己烷-乙酸乙酯-甲酸(7∶2∶2∶0.2),喷以1%香草醛硫酸溶液,105℃加热显色。结果:对不同产地的茯神药材进行薄层鉴别,斑点清洗,分离度好,不同产地的茯神主成分基本一致,能有效鉴别茯神及其伪品。结论:所建立的茯神薄层鉴别方法简单、专属性强、耐用性佳,结果可靠,可用于茯神鉴别。     

生药女贞叶的鉴别研究

目的:对女贞叶进行鉴别研究。方法:对女贞叶采用性状鉴别、显微鉴别和薄层色谱鉴别的方法。结果:女贞叶的药材性状、显微特征有明显的鉴别特点;薄层色谱鉴别斑点清晰,专属性强。结论:以上特征可为女贞叶的鉴别和开发利用提供依据。     

一种散剂中甘草薄层色谱鉴别方法的建立

目的:一种散剂中甘草薄层色谱方法的建立。方法:采用薄层色谱法,对散剂中甘草进行鉴别研究,以甘草酸单铵盐作为对照,并对不同前处理方法、不同的点样量、不同展开系统、不同薄层板、不同湿度、不同展距等进行了考察。结果:甘草薄层色谱分离较好,斑点清晰,阴性试验无干扰。结论:研究所建立的方法操作简便,专属性强,耐用性好,可以用于此散剂中甘草的鉴别。     

生骨补肾胶囊显微及薄层鉴别研究

初步建立生骨补肾胶囊相关药材的显微鉴别和薄层鉴别方法,以期提高质量控制标准。采用显微鉴别对生骨补肾胶囊中白芷、木香、牛膝、西洋参4味中药进行鉴别;薄层法对生骨补肾胶囊中丹参、白芷、木香3味中药进行定性鉴别。由结果可见,白芷、木香、牛膝、西洋参显微特征明显;丹参、白芷和木香的薄层鉴别斑点清晰,专属性强,阴性无干扰。所建立的显微鉴别和薄层鉴别相关中药的方法,可作为生骨补肾胶囊的质量控制标准的参考依据。     

槟榔提取物质量标准研究

目的:研究和建立槟榔提取物的质量标准。方法:参照《中国药典》2015年版附录相关方法,建立槟榔提取物性状标准;采用薄层色谱法进行定性鉴别;采用高效液相色谱法建立槟榔提取物的槟榔碱含量测定方法并规定限度。结果:结果表明薄层色谱斑点清晰,分离度好;槟榔碱按干燥品计算不少于6. 0%。结论:本研究建立的质量标准可以控制槟榔提取物的质量。     

更年安胶囊的薄层色谱鉴别研究

建立更年安胶囊的薄层色谱鉴别方法.方法:采用薄层色谱法对方中各味药进行定性鉴别.结果:何首乌和首乌藤、五味子、麦冬、仙茅的薄层图谱清晰,且阴性对照无干扰.结论:建立的鉴别方法可行,斑点清晰,分离度高,重现性好,可用作更年安胶囊的质量控制方法.     

上清丸(水丸)白芷薄层色谱鉴别方法研究

目的:建立上清丸(水丸)的白芷薄层色谱(TLC)鉴别方法。方法:对白芷进行薄层色谱鉴别。结果:薄层色谱斑点清晰,阴性对照无干扰。结论:所用方法操作简便,专属性强,重现性好,可用于上清丸(水丸)的质量控制。     

In-situ formation of cast granules in thermit-type SHS reactions

Addressed is the phenomenology of combustion in thin layers of thermit-type SHS compositions. The combustion was found to yield cast granules of combustion products whose size could be affected by variation in the green layer thickness and amount of added neutral diluent. The process looks promising for fabrication of cast granules with a particle size of 0.2–4.0 mm.     

Growth Mechanism of Nanometer-Sized SiC and Oxidation Resistance of SiC-Coated Diamond Particles

Diamond particles were coated with a thin SiC layer by the reaction of SiO vapor with diamond, and the growth mechanism of SiC as well as the oxidation resistance of the SiC-coated diamond were studied. The growth process of the SiC layer can be separated into two steps. In the first step, a thin layer of SiC with a thickness of about 15 nm is formed due to the reaction between SiO vapor and diamond. In the second step, nanometer-sized SiC granules are deposited on the SiC layer by the reaction between SiO vapor and CO. The apparent activation energy for the formation of SiC layer on diamond was found to be 100 kJ/mol. This value suggests that the SiC coating process occurred mainly by vapor-phase reaction. The oxidation resistance of the SiC-coated diamond was improved depending on the thickness of the SiC layer. Oxidation of the SiC-coated diamond particles began at 950°C, which was 400°C higher than that of uncoated diamond.     

High-speed photographic studies of impact on thin layers of emulsion explosive

A photographic study, at microsecond framing rates, has been made of the impact behaviour of thin layer samples of emulsion explosives. The experiments were performed using a drop-weight apparatus with transparent anvils. The effects of incorporating aluminium granules (∼100 μm in size) and glass microspheres (50 μm to 150 μm diameter) in the emulsion matrix were also studied. It was possible to record the flow of the emulsion both with and without additives. Of particular interest were observations of the onset and development of crystallization in the layer. In no case was there evidence for initiation of explosion.     

井-震-演联合地层对比技术在薄层复杂碎屑岩油藏描述中的应用

小层划分与对比是油田开发方案实施的基础,对于薄层复杂碎屑岩油藏而言,常用的方法不能解决油藏的小层对比问题。为了解决类似油藏所普遍存在的难题,在塔河油田三区石炭系卡拉沙依组砂泥岩段油藏描述中,采用了井震演联合地层对比划分技术,在小层划分中主要参考了高分辨率反演成果,从砂层组到小层划分循环迭代,逐级划分,细化了卡拉沙依组油藏开发的小层对比和划分。并且,从主力含油砂体描述成果对油水关系分析来看,小层划分对比结果是合理的,小层对比划分方法是可行的。     

七里村油田薄油层测井识别技术研究

针对常规测井曲线纵向分辨率不高,对薄油层的响应值不准确,导致薄油层漏失解释,同时非常规的高分辨率测井系列成本高等问题,本文基于薄层对常规测井响应特征影响分析,确定薄层敏感测井曲线,综合沃尔什反演法、分辨率匹配法、傅立叶频谱法多种提高常规测井曲线纵向分辨率方法,优选出最佳方法,结果表明：傅立叶频谱法处理后的测井曲线能够有效地反映地层的真实信息,通过测井曲线纵向分辨率提高处理以后,砂体划分精度明显比原结论更加精细,测井解释结论更加准确,对全区的开发和储量接替都起到了良好的作用。     

Improved hydration resistance of CaO granules via sol-processed metal oxide protective layers

Well-sintered CaO granules with hydration resistance are very important for the manufacturing and application of CaO-containing refractories. CaO granules with sol-processed metal oxide protective layers were prepared by granulation and surface treatment. The obtained results indicated that the usage of nano sol greatly improved the hydration resistance of CaO granules, especially when the CaO granules were treated by alumina sol. The promoting effect of nano sols in the sintering processes improved the density of CaO granules. Nanoparticles reacted with lime at lower temperature and a new phase was formed uniformly in the treated layer, which promoted densification of the treated layer. The grain size of CaO granules in the treated layer was increased obviously with the promotion of sintering. Moreover, nanoparticles were favorable for the formation of direct bonding between CaO grains by decreasing the dihedral angle.     

Detection of Rancid Groundnut Oil and its Differentiation from Castor Oil

Physico-chemical study, over a set of oxidized, bleached, neutralized groundnut oil samples and admixed samples of groundnut and castor oils, have been carried out to determine any possible deviation in their quality parameters, caused due to these treatments. Detection of rancid groundnut oil and its differentiation from castor oil can be accomplished qualitatively by use of methanolic sulfuric acid decomposition and ferrous ions induced cleavage methods. Few chemical spray reagents have also been selected and applied for detection and differentiation purpose on thin layer chromatoplates. Among the reagents, ferrous thiocyanate, potassium iodide and starch, alkaline permanganate, combinations of hydroiodic, hydrochloric, acetic acids and starch and hydroiodic acid and starch, found working as brown, blue, and yellow coloured sports could be seen for rancid groundnut oil on thin layer chromatoplates. Fresh groundnut and castor oils were silent in all the estimations, suggesting a clear distinction between castor oil and rancid groundnut oil.     

大小颗粒Ti02复合制备纳晶薄膜电极及其性能研究

选用大小粒径分别为200nm和21nm的TiO2颗粒,采用刮涂法制备了几种不同条件的TiOz薄膜电极,研究了大小颗粒Ti02的复合方式和质量比对其所组装染料敏化太阳能电池光电性能的影响。应用红外吸收光谱仪和扫描电子显微镜对Ti02薄膜电极进行了表征,在100mW／cm^2（AM1．5G）光照下,测试了电池的光电性能。结果表明：将大颗粒Ti02作为光散射层,且大颗粒Ti02和小颗粒Ti02质量比为1：3时,所制薄膜不但可以保持纳米粉体高比表面积的优点,同时可以提高对太阳光的散射率,用其组装的电池光电性能最好,转换效率达到2．46％。