HPLC法测定人参花中绿原酸的含量

建立以高效液相色谱法测定人参花中绿原酸含量的方法．色谱柱为ODS—C18（250mm×4．6mm,5μm）,流动相为乙腈-0．5％磷酸溶液（30：70）,流速为1．0mL／min,检测波长为326nm,柱温为25℃．绿原酸在0．4～4．0μg范围内与峰面积积分值呈良好的线性关系（R=0．9991）;平均回收率为99．28％,RSD=1．46％（n=6）．本法简便、准确、重现性好、可用于人参花茶的质量控制和评价．     

菊三七根中化合物seneciphyllicacid和senecinicacid的含量测定

目的：采用HPLC法测定菊三七根部seneciphyllicacid和senecinicacid的含量．方法：建立HPLC法测定菊三七根部seneciphyllicacid和senecinicacid的含量．色谱柱为AcclaimC18色谱柱（4．6mm×250mm,5μm）,流动相为甲醇-0．1％甲酸水（40：60,v·v-1）,流速为1．0mL·min-1,柱温为30℃,紫外检测波长为220nm．线性范围：Seneciphyllicacid为0．1～0．8mg·mL-1（相关系数r=0．9997）;senecinicacid为0．1～1．5mg·mL。（相关系数r=0．9998）．结果：测得菊三七根部seneciphyllicacid和senecinicacid的含量分别为2．9613mg·g-1、0．9542mg·g-1;RSD分别为1．34％、1．28％;平均回收率为98．84％、99．16％,RSD为1．94％、1．51％．结论：该方法快速、简便、准确度高,可为开发利用菊三七提供研究基础．     

HPLC法测定小儿氨酚黄那敏颗粒剂中噩乙酰氨基酚含量

目的：用反相高效液相色谱法测小儿氨酚黄那敏颗粒中对乙酰氨基酚含量。方法：采用C18色谱柱,流动相为甲醇：0．05mol／L醋酸铵溶液（15：85）,检测波长为257nm。结果：对乙酰氨基酚在6-361．Lg／ml浓度范围内线形关系良好,r=-0．9999,平均回收率99．28％（n=5）,RSD=0．62％（n=5）。结论：该方法简单、快速、准确,可以有效地控制药品质量。     

RP-HPLC法测定人血草中黄连碱和白屈菜红碱的含量

目的：建立人血草干燥全草中黄连碱和白屈菜红碱含量的测定方法．方法：采用反相HPLC法．色谱柱为YMC—PackODS—AA（4．6mm×250mm,5肚m）,以乙腈一水（0．2％磷酸＋0．2％三乙胺）体系梯度洗脱,检测波长280nm,流速1．0mL·min-1,柱温30℃．结果：黄连碱在13．24～264．8μg·mL叫质量浓度范围内面积与浓度呈良好的线性关系（r=0．9997）;加样回收率为99．4％,RSD为1．1％（n=6）．白屈菜红碱在6．36～127．2μg·mI．一质量浓度范围内面积与浓度呈良好的线性关系（r=0．9998）;加样回收率为101．6％,RSD为1．2％（n=6）．结论：本法简单、准确,重复性好,可用于人血草药材的质量．     

贯叶连翘中金丝桃素与黄酮（槲皮素）的含量测定

目的：采用高效液相色谱法测定贯叶连翘中的金丝桃素、黄酮（槲皮素）的含量。方法：色谱柱为Phenomenex LunsC18（4．6mm×150mm,5μm）,检测波长分别为590nm和360nm,流动相分别为甲醇：0006mol／L磷酸氢二钠溶液（87：13）和甲醇：水：磷酸（55：44．8：0．2）。结果：线性范围分别在0．027-0．135μg和0．052～0．26μg内良好,回收率分别为：98．39％（n=5）和98．85％（n=5）。RSD分别为0．78％和1．02％。结论：方法能用于贯叶连翘中的金丝桃素、黄酮（槲皮素）的含量测定。关键词：贯叶连翘;槲皮素;金丝桃素;含量测定     

川芎中药配方颗粒中咖啡酸的HPLC-ECD测定

建立测定川芎中药配方颗拉中咖啡酸的高效液相色谱电化学分析法,并用该方法测定2种不同批号的川芎中药配方颗拉。采用反相高效液相色谱电化学检测法,以Zorbax SB-C18（150mm×4．6mm,5．0m）为色谱柱;甲醇-4％醋酸为流动相,梯度洗脱,流速为1．0mL．min-1：检测电压为0．7V,柱温为30℃。结果：咖啡酸浓度在2．4-8．4μg·mL^-1（r=0．9997）范围内线性关系良好,平均加样回收率（n=6）为98．9％（RSD=2．1％）。该法是一种快速,灵敏,准确的分析方法,可以为川芎中药配方颗拉的质量控制提供科学依据。     

毛细管色谱法测定头孢美唑中的有机溶剂残留量

采用毛细管气相色谱法，以叔丁基甲醚为内标，用Agilent DB-200毛细管气相色谱柱和氢焰离子化检测器．同时测定了头孢美唑中甲醇、乙醇、二氯甲烷、三乙胺、乙酸乙酯、苯甲醚等6种有机溶剂残留量．6种溶剂的线性范围分别为0～480μg／mL（r=0．9996）、0—800μg／mL（r=0．9994）、0～96μg／mL（r=0．9990）、0～800μg/mL（r=0．9993）、0～800μg／mL（r=0．9995）、0～800μg／mL（r=0．9993）；平均回收率分别为100．1％、100．5％、101．2％、100．1％、100．7％和100．4％；相对标准偏差分别为0．90％、1．30％、1．18％、1．23％、1．52％、1．41％（n=9）．     

HPLC测定中药萝芙木中育亨宾的含量

采用HPLC法测定中药萝芙木中育亨宾的含量．色谱条件：C18（5um，14．6mm×150mm）色谱柱，以甲醇：水（0．004mol／L二乙胺）=（65：35）为流动相，检测波长278nm．结果表明：育亨宾在0．512～2．56ug质量范围内与峰面积呈良好的线性关系（r=0．9998），平均回收率为95．52％，相对标准方差RSD=1．18％（n=10）．本法简便、快速，准确可靠，可用于中药萝芙木的质量控制．     

丹参营养器官中丹参酮ⅡA的高效液相色谱法分析

目的：建立测定丹参各营养器官中丹参酮ⅡA的高效液相色谱分析法,并用该方法测定丹参各营养器官中丹参酮ⅡA含量。方法：采用反相高效液相色谱法,以Zorbax SB-C18（150mm×4．6mm,5．0m）为色谱柱,柱温为30℃;甲醇：水=75：25为流动相;流速：1．0mL·min^-1;检测波长：268nm。结果：丹参酮ⅡA浓度在4．4～70．4μg·mL^-1（r=0．9996）范围内线性关系良好,平均加样回收率（n=6）为99．7％（RSD=2．1％）。结论：该法是一种快速、灵敏．准确的分析方法,可以为丹参的种植,采收．品质鉴定、扩展药用部位以及控制丹参药材质量提供理论依据。     

多索茶碱注射液的质量控制

规范多索茶碱注射液检验标准操作程序。在原有检验操作程序的基础上,建立高效液相法测定多索茶碱注射液有关物质的检测方法。含量测定采用Phenomenex-C18（250×4．60mm5μm）色谱柱,流动相：乙腈一磷酸盐缓冲盐pH=5．8（18：82）,流速0．8mL·min^-1,检测波长273nm,进样量10laL,RSD=0．11％。有关物质测定采用Phenomenex-c18（250×4．60mm5ttrn）色谱柱,流动相：乙腈一水（V（以乙腈）：V（水）=（35：65））,流速0．8mL·min^-1,检测波长273nm,进样量10μL。本方法简便、快速、结果准确、可靠。     

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.     

A computer generator for randomly layered structures

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

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。     

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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