HPLC法测定骨康胶囊中含芍药苷的量

建立HPLC法测定骨康胶囊中含芍药苷量的方法.样品经甲醇超声提取后,采用HPLC法测定骨康胶囊中含芍药苷量的方法,使用C18色谱柱,甲醇-水(28∶72)为流动相.检测波长为230 nm,流速为1.0 m L/min.芍药苷线性范围是9.8~99.0μg/m L,相关系数r=0.999 8,平均回收率99.46%.样品处理方法合理,方法学考察符合定量要求,结果准确,可用于骨康胶囊中含芍药苷的量测定.     

九味消癥胶囊质量标准研究

目的:建立九味消癥胶囊质量控制标准。方法:采用TLC法对九味消癥胶囊中黄芪、大黄等药材进行定性鉴别;采用HPLC法对九味消癥胶囊中芍药苷的含量进行定量测定。结果:TLC色谱中阴性样品均无干扰,斑点清晰,专属性强;芍药苷在24.12~300.1μg之间峰面积与浓度呈良好的线性关系,r=0.9999,平均回收率为97.17%,RSD=0.70%。结论:本方法准确,快捷,重现性好,可用于九味消癥胶囊的质量控制。     

复方珍珠暗疮胶囊中黄芩苷含量测定

建立了HPLC法测定复方珍珠暗疮胶囊中黄芩的有效成分黄芩苷含量的方法.采用C18柱,流速1 mL/min、流动相水相（取庚烷磺酸钠0.40 g,磷酸二氢钠3.90 g,加水溶解并稀释至1 000 mL）-甲醇（56：44）,用冰乙酸调pH至3.40;检测波长275 nm.结果表明：黄芩苷在0.49-5.88μg线性关系良好,相关系数为0.999 7,回收率为99.32%,RSD为0.9%（n=6）.该法适用于复方珍珠暗疮胶囊中黄芩苷的含量测定.     

HPLC法测定纳米龙血竭胶囊中龙血素A的含量和包裹率

目的:建立HPLC法测定纳米龙血竭胶囊中龙血素A的含量和包裹率.方法:在C18柱,甲醇-1%冰乙酸溶液(体积比66∶34)为流动相,检测波长280nm,柱温35°C条件下,HPLC测定样品.结果:龙血素A在0.22~7.78μg范围内有良好线性关系,r=0.997,方法回收率94.42%,RSD为1.94%.结论:此方法可用于测定自制纳米龙血竭胶囊中龙血素A含量和龙血竭的包裹率.     

高效液相色谱法测定暖宫孕子丸中芍药苷的含量

目的：建立一种高效液相色谱法测定暖宫孕子胶囊中芍药苷含量的方法.方法：用C18ODS2色谱柱;以甲醇-0.05moL/L磷酸二氢钾溶液-醋酸-异丙醇（67：173：4：4）为流动相;流速为1.0 mL/min;检测波长为230 nm;柱温为25℃.结果芍药苷在0.087～0.435 ug范围内呈良好的线性关系,r=0.9997,平均回收率为96.4%（RSD=1.2%）.结论该方法简便、快捷、准确.     

HPLC法测定黄豆苷元胶囊的含量

建立HPLC法测定黄豆苷元胶囊的含量.方法:采用Hypersil ODS 色谱柱,(4.6 mm ×150 mm,5 μm),流动相水-乙腈(70∶30),流速为1 mL·min-1,检测波长249 nm,柱温30 ℃,进样量15 μL.结果:在1.0～20.0 μg·min-1浓度范围内线性关系良好,方法回收率为101 98%,RSD为1.45% (n＝9),精密度良好.结论:本方法灵敏、准确、专属性强,用于该制剂含量测定结果满意.     

安神补脑胶囊质量标准的研究

对安神补脑胶囊的质量标准进行研究;采用高效液相色谱法;安神补脑胶囊中二苯乙烯苷的含量为2.484 mg/粒;采用HPLC法测定制何首乌中2,3,5,4′-四羟基二苯乙烯-2-O-β-D-葡萄糖苷(C20H22O9)的含量,可以作为安神补脑胶囊的定量标准,测定方法简便、准确、可靠、重现性好.     

RP-HPLC法测定通天口服液中芍药苷的含量

目的 建立通天口服液中芍药苷的含量测定方法。方法 采用高效液相色谱法测定通天口服液中芍药苷含量。色谱柱：Kromasil C18柱（4.6 mm?50 mm,5 μm）;流动相：乙腈-0.1%磷酸梯度洗脱;柱温30℃;检测波长230nm;进样量：10礚。结果 芍药苷在0.339礸/mL-3.782礸/mL范围内与峰面积呈良好线性关系,r=0.9999;芍药苷平均回收率为100.03%,RSD=1.79%（n=6）。结论 该定量方法简便可行、重复性好,可用于通天口服液的质量控制。     

亳白芍与赤芍药材中芍药苷含量比较

目的:建立简单、快速、灵敏、准确的HPLC-DAD法测定亳白芍与赤芍药材中芍药苷的含量。方法:采用HPLC-DAD法,ZORBAX SB-C18(250 mm×4.6 mm I.D.,5μm)色谱柱;以乙腈为流动相A,0.10%磷酸水溶液为流动相B;等度洗脱;柱温25℃;检测波长为230 nm;流速为1.0 mL·min-1。分离度R大于1.5,理论塔板数N,按芍药苷计不低于4000。结果:亳白芍和赤芍药材中芍药苷的含量分别为24.43 mg·g-1、32.77 mg·g-1。结论:赤芍药材中芍药苷的含量显著高于亳白芍药材中芍药苷的含量。     

用HPLC法测定根痛平胶囊中芍药苷的质量比

对根痛平胶囊中的君药白芍的有效成分芍药苷的质量比测定方法进行了研究;采用高效液相色谱法测定根痛平胶囊中芍药苷的质量比;测得根痛平胶囊中芍药苷质量比为1.284 9 mg/粒;采用高效液相色谱法测定根痛平胶囊中芍药苷的质量比可作为根痛平胶囊的定量标准,测定方法简便、准确、可靠、重现性好.     

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.     

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。     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has