共查询到18条相似文献,搜索用时 78 毫秒
1.
薄层色谱-氢火焰离子检测分析重质油的族组成 总被引:1,自引:0,他引:1
报道了薄层色谱—氢火焰离子检测法在重质油的族组成分析中的应用。方法可有效分离和检测重质油的族组成(饱和烃、芳香烃、胶质等)。该方法具有快速、准确、样品及溶剂用量少等特点。在一定试验条件下,原油的种类和实际点样量不影响氢火焰离子检测的响应值。 相似文献
3.
4.
5.
6.
7.
8.
本文简单回顾了离子对高效液相色谱作为一种先进的分析手段在无机分析领域中的发展历史,并对其特点、保留机理、应用现状和发展前景四个方面作了详细的介绍。 相似文献
9.
10.
11.
多元复合原油破乳剂的研究和应用 总被引:2,自引:0,他引:2
本文评价了几种破乳剂对克拉玛依原油的破乳效果。进行了单剂和复配剂的化学破乳及除油率的筛选。结果表明复配破乳剂在加药浓度、净化油含水和净化水含油、脱水速度等方面均优于单剂。表明复配破乳剂是高效原油破乳剂的研究方向之一。 相似文献
12.
13.
14.
15.
XU Mingcheng XU Mancai SHI Zuoqing LIU Juxiang SHI Rongfu HE Binglin 《Chinese Journal of Reactive Polymers》2000,(1)
1 INTRODUCTIONGinkgolides, known as specific antagonist of platelet factor (PAF), possess uniquepharmaceutical properties and are main active constituent of many phytopharrnaceuticpreparations based on ginkgo bilioba leaves extracts II]. Another active terpenoid, namelybilobalide, is reported recently to show potent therapeutic efficacy to the disease related to nervesystem 121. They are all terpene lactones, which are highly oxidized as illustrated in Figure 1.The first attempts to ana… 相似文献
16.
17.
Considering all the kinds of interactions between solute and solvent, solute and stationary phase, solvent and stationary phase molecules as well as the competitional adsorption among various kinds of solvent molecules on the stationary phase, we present a stoichiometric displacement model of solute retention with four sets of parameters in liquid chromatography. This model was tested with data from both literature and experiments done by ourselves. These results show that this model may fit the experimental data for a liquid chromatography system with various kinds of mobile phases consisting of a complete range of multi-components and with different types of stationary phases. 相似文献
18.
研究了反相高效液相色谱中不同冲洗剂体系中同系物组分的线性S-logk'w相关分析(LSLC)。LSLC分析可以用来表征反相高效液相色谱的柱系统,在LSLC方程S=p·logk'w+q中,q/p主要表征了柱相比的对数(logΦ),而且对给定冲洗剂系统是一个常数;由LSLC所获得的相比并不显著的随同系物的种类的变化而变化,它是随G_18键含量的增加而增加的。 相似文献