黄精舒眠颗粒中天麻素含量测定

目的:建立黄精舒眠颗粒中天麻素的含量测定方法。方法:采用高效液相色谱法测定黄精舒眠颗粒中天麻素含量,Wondasil C18(5μm,4.6 mm×250 mm)色谱柱;流动相:乙腈—0.05%磷酸水溶液(3∶97V/V);检测波长:220 nm;流速:1.0mL/min;柱温:30℃;进样量:10μL。结果:天麻素对照品在40.8~91.8μg的线性范围内(r=0.9997,n=6)成良好的线性关系,三批颗粒中天麻素的含量分别为0.550 mg/g,0.544 mg/g,0.552 mg/g,RSD=0.76%。结论:方法可用于黄精舒眠颗粒的质量控制。     

养心安神颗粒质量标准研究

为建立养心安神颗粒质量控制标准,采用薄层色谱法(TLC)对养心安神颗粒中的黄芪、人参、甘草、五味子、川芎、当归、酸枣仁7味药材进行了鉴别,对复方中君药黄芪中的有效成分黄芪甲苷采取高效液相色谱法(HPLC)进行了测定.结果表明黄芪、人参、五味子等7味药材的薄层色谱主斑点清晰,分离良好,阴性无干扰;黄芪甲苷在0. 988 4～5. 930 4μg之间线性良好,平均加样回收率为98.07%.建立的TLC和HPLC方法可靠、准确、重现性好,可全面控制养心安神颗粒的质量.     

引阳索颗粒剂中淫羊藿苷的含量测定研究

目的:建立用高效液相色谱法测定引阳索颗粒中淫羊藿苷含量的方法。方法:采用ODSC18色谱柱(10μm,4.6×200mm),水-乙腈(71∶29,体积比)为流动相,流速为1.0mL/min,检测波长为270nm,柱温为30℃。结果:淫羊藿苷在进样量0.2492μg～1.4952μg范围内线性关系良好,r=0.9994,平均加样回收率为99.57%,RSD为0.87%。结论:本方法操作简单,重现性好,可以作为该制剂的含量测定方法,适于质量控制。     

HPLC法测定胃舒康片中芍药苷的量

建立胃舒康片含中芍药苷量的测定方法.采用高效液相色谱法定量分析含芍药苷量,使用Alltima-C18(5μm,4.6 mm×250 mm)色谱柱,流动相为甲醇-水-冰醋酸(25∶75∶0.2),流速为1mL/min;进样量为10μL,检测波长为230 nm.经过系统性研究,测得平均回收率为100.42%,RSD为1.05%(n=6).该方法操作简易,专属性及重现性好,可有效地控制胃舒康片的质量.     

高效液相色谱法测定滇丹参中丹参酮Ⅱ A的含量

目的:建立高效液相色谱法测定滇丹参中丹参酮ⅡA的含量。方法:采用ZORBAXSB-C18(4.6mm×150mm,5μm)色谱柱;流动相为甲醇-水(75∶25);柱温25℃;检测波长270nm;流速1.0ml/min;进样量10μl。结果:丹参酮ⅡA在0.0041～0.410 0μg/L范围内线性关系好,r=0.9999(n=6),平均回收率为98.59%,RSD为1.05%。结论:该方法准确、快速、灵敏,可用于滇丹参的质量控制。     

RP-HPLC法测肝康颗粒中阿魏酸的含量

建立以高效液相色谱法测定肝康颗粒中阿魏酸含量的方法。采用反相高效液相色谱法测定康颗粒中阿魏酸的含量。高效液色谱条件为:色谱柱,Kromasil C_(18)柱(250 mm×4.6 mm,5 mm);流动相,甲醇-0.085%磷酸(38:62);检测波长316 nm;流速1.0 mL·min~(-1);柱温为25℃。阿魏酸进样量在75.2～752 ng范围内线性关系良好,回归方程为:Y=7066.1X-42190(r=0.9994,n=6);平均加样回收率为99.46%,RSD=1.33%。本方法操作简便、准确、灵敏度高可用于肝康颗粒的质量控制。     

消喘贴敷膏剂质量标准研究

为建立消喘贴敷膏剂的质量控制方法,本文采用薄层色谱法对消喘贴敷膏剂中的白芥子、延胡索、细辛、荜茇进行定性分析。采用高效液相色谱法对白芥子的芥子碱硫氰酸盐进行含量测定,色谱柱为Phenomenex Geminin C18色谱柱(150 mm×4.6 mm,5μm),以乙腈-0.08 mol/L磷酸二氢钾溶液(13∶87,V/V)为流动相,检测波长326 nm,流速1.0 m L/min,柱温25℃,进样量20μL。鉴定结果表明,4味中药斑点清晰,分离较好,阴性对照无干扰。芥子碱硫氰酸盐在0.84~8.4μg范围内呈良好的线性关系(r=0.999 7),平均加样回收率(n=6)为99.58%(相对标准偏差为0.37%)。该方法简单快捷、准确可靠,专属性强,可用于消喘贴敷膏剂的质量控制。     

果上叶中白杨素的含量测定

目的建立果上叶(bulbophyllum odoratissimum,Lindl)中白杨素(chrysin)的含量测定方法。方法原药材经过提取黄酮类有效成分、硅胶柱分离初步纯化后采用高效液相色谱法分析,以Agilent Eclipse XDB-C 18(4.6 mm×250 mm,5μm)为色谱柱,流动相为乙腈-0.1%磷酸水溶液(30∶70),流速为1.0 mL/min,检测波长为220 nm;进样体积为10μL。结果白杨素在测定浓度为10～100μg/mL范围内与峰面积呈良好的线性关系(r=0.998 9),平均回收率为99.06%,相对标准偏差(RSD)为0.7%,n=6。结论该法操作简便、准确、灵敏,可用于果上叶的白杨素质量控制。     

HPLC测定川菊中叶黄素的含量

建立川菊中叶黄素含量的检测方法.采用高效液相色谱法,以叶黄素为指标,D iamonsilTMC18柱(4.6mm×150mm,5μm);CH3OH-H2O(95.5?4.5)为流动相;检测波长为444.5 nm.结果:平均回收率为99.23%,RSD=0.6%.进样量在0.0027-0.0189μg线性关系良好,r=0.9998.该方法简便、稳定、重现性好,为菊花质量的控制提供参考.     

红景天中含红景天苷量的测定

为建立一个稳定可靠分离度好的方法测定红景天中含红景天苷的量.采用高效液相色谱法,色谱柱为BDS HYPERSIL-C18(4.6 mm×250 mm,5μm);以乙腈-0.03%磷酸为流动相进行梯度洗脱;流速1.0 m L/min;检测波长275 nm;柱温30℃.结果表明,红景天苷的进样量在1.25~10μg范围内有良好的线性关系,平均回收率为98.16%,RSD为0.89%.该方法准确、可靠、分离度好,可用于红景天的质量评价.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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