散偏口服液中阿魏酸的含量测定

采用HPLC法、C18柱，以甲醇-1％冰醋酸溶液(30：70)为流动相，检测波长为313nm，对散偏口服液中阿魏酸的含量进行测定，结果表明，阿魏酸在0．996～49．80mg／L范围内线性良好，r=0．9999，平均回收率为96．96％，RSD为2．13％．该方法精确、稳定、快速方便，适于该复方制剂的质量控制．     

锌钙特口服液中钙锌含量的测定

用原子吸收光谱(AAS)法同时测定锌钙特口服液中钙、锌的含量．为了消除干扰，锌的测定采用标准加入法，平均回收率为99．6％，RSD为0．8％；钙的平均回收率为101.1％．RSD为0．3％．结果显示该方法简便、快速、准确，可用于该类制剂的含量测定及质量控制．     

锌钙特口服液中钙锌含量的测定

用原子吸收光谱（AAS）法同时测定锌钙特口服液中钙，锌的含量，为了消除干扰，锌的测定采用标准加入法，平均回收率为99．6％，RSD为0．6％，钙的平均回收率为101．1％，RSD为0．3％，结果显示该方法简便，快速，准确，可用于该类型制剂的含量测定及质量控制。     

离子对反相高效液相色谱法考察糖浆口服液中核黄素—5—磷酸钠稳定性

建立了离子对反相高效液相色谱分析方法考察复方制剂诺平糖浆口服液的稳定性。以核黄素-5-磷酸钠为指标组分,采用Hypersil C18色谱柱,流动相为：0．01：mol／L K2HPO4(含50mmol／L PIC-B7)：乙腈(90：10),检测波长为254nm,流速：1．0mL／min。结果表明,核黄素-5-磷酸钠在8．0～320μg／mL范围内呈良好的线性,降解产物不干扰测定;方法准确、灵敏、操作简单、重现性好,可对复方制剂中核黄素-5-磷酸钠的降解产物进行有效监控。     

HPLC法测定复方双花气雾剂中麻黄碱的含量

为建立一种用高效液相色谱法测定复方双花气雾剂中麻黄碱含量的方法，用C18－ODS为固定相，甲醇－水－三乙胺（20：80：0．1，用磷酸调pH值3．5－4．5）为流动相，检测波长为527nm。结果表明，在进样量2．04－10．20μg范围内，该方法线性关系良好（r=0.9992)，平均回收率为98．9％，RSD为3．61％（n=5)。表明该方法简便、准确、重复性好，可作为该制剂含量的测定方法。     

HPLC法测定复方珊瑚姜溶液尿素咪康唑软膏复合制剂中硝酸咪康唑含量

通过采用十八烷基硅烷键合硅胶为填充剂的色谱柱,以甲醇-0.35%磷酸溶液(用三乙胺调pH至3.2)(80∶20)为流动相,流速1.0 mL/min,检测波长为230 nm,柱温25℃,进样量为10μL,建立复方珊瑚姜溶液尿素咪康唑软膏复合制剂中硝酸咪康唑含量测定的方法。结果表明:硝酸咪康唑在0.049 90～0.848 3μg范围内线性关系良好(r=1.000),方法回收率为97.13%(n=9,RSD=0.56%)。建立的方法简便、快速、准确及可靠,可用于复方珊瑚姜溶液尿素咪康唑软膏复合制剂中硝酸咪康唑的定量测定。     

软膏中盐酸麻黄碱和氢化可的松含量的测定

用酸碱滴定法和紫外一阶导数的方法分别对软膏中盐酸麻黄碱和氢化可的松的含量进行测定，结果表明：盐酸麻黄碱的平均回收率为100．6％(RSD=0．72％)，氢化可的松的平均回收率为102．O％(RSD=1．67％)。说明此方法稳定可靠，可用于软膏制剂中主药的含量测定。     

"气血双补口服液"的总氨基氮含量测定

甲鱼是“气血双补口服液”的君药组成之一，其水解液含有多种α-氨基酸，通过甲醛滴定法可测定口服液的总氨基氮含量．利用均匀设计法研究使用甲醛滴定法测定口服液的总氨基氮含量的最佳测定条件为：在口服液为3．9mL，pH9．0甲醛为10．0mL时，口服液的总氨基氮含量最高．实验结果表明，该法的测定结果重现性好。回收率在95％～105％内；且其测定方法简便，可用于“气血双补口服液”中氨基酸的质量控制。     

高效液相色谱法测定三拗汤制剂中麻黄碱的含量

目的建立三拗汤制剂中麻黄碱含量的测定方法。方法采用高效液相色谱法测定三拗汤制剂中麻黄碱的含量,并考察其方法的可行性。结果盐酸麻黄碱在0．0868～0．8680ug（r=0．9999）范围内线性关系良好,加样回收率和RSD为99．5％和2．1％。结论该方法简便、快捷、准确,可用于三拗汤制剂中麻黄碱的含量测定。     

HPLC法测定复方珊瑚姜溶液尿素咪康唑软膏复合制剂中姜黄素含量

建立复方珊瑚姜溶液尿素咪康唑软膏复合制剂中姜黄素的含量测定方法。采用十八烷基硅烷键合硅胶为填充剂的色谱柱,以乙腈-0.4%磷酸溶液(45∶55)为流动相,流速1.0m L/min,检测波长为430nm,柱温25℃。姜黄素在3.7~74.6ng范围内线性关系良好(r=0.999 9),方法回收率为98.23%(RSD=1.39%)。建立的方法简便、快速、准确及可靠,并可用于制剂中姜黄素的定量测定。     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

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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