导数示波极谱法测定废水中微量的对硝基苯乙酮

对硝基苯乙酮在０．０２５ｍｏｌ．Ｌ＾－１乙二胺－０．０１０ｍｏｌ．Ｌ＾０１ＥＤＴＡ底液中，产生一灵敏的极谱峰电流。峰电位为－０．３５Ｖ。对硝基苯乙酮浓度在３．００×１０＾－８－１．００×１０＾－５ｍｏｌ．Ｌ＾－１范围内，浓度与峰电流成线性关系。     

新试剂1-(4-硝基苯)-3-(5-硝基-2-吡啶基)-三氮唏的合成及其与镉的显色反应(英)

报道新试剂１－（４－硝基苯）－３－（５－硝基－２－吡啶基）－三氮烯的合成及与镉的显色反应,结果表明：在Ｔｒｉｔｏｎｘ－１００存在下,ｐＨ＝１０． ３１－１１． ５０时,试剂与镉形成 １：２型的黄色络合物,应用双波长法其表观摩尔吸光奇数 ε＝２ ４８×１０５Ｌ· ｍｏｌ－１·ｃｍ－１,试值范围为 ０～８μｇＣｄ（Ⅱ）／２５ｍｏｌ     

四种单核苷酸的毛细管区带电泳分离分析

报道了４种单核苷酸（ｃＡＭＰ、ｃＧＭＰ、ＡＭＰ、ＧＭＰ）的毛细管区带电泳分离及含量测定方法．方法的线性范围：ｃＡＭＰ为２－７５０ｍｇ·Ｌ－１,ｃＧＭＰ为２－６５０ｍｇ·Ｌ－１,ＡＭＰ为２－２５０ｍｇ·Ｌ－１,ＧＭＰ为２－３００ｍｇ·Ｌ－１;当浓度为１００ｍｇ·Ｌ－１,其δ（相对标准偏差）为２３０％（ｃＡＭＰ）、２．５０％（ｃＧＭＰ）、０．６８％（ＡＭＰ）和２．２７％（ＧＭＰ）．     

玉米粉直接发酵生产L－乳酸钙

以米根霉（ＲｈｉｚｏｐｕｓＯｒｙｚａｅ）突变株Ｒ－１８８为菌种，直接用玉米粉为原料，在７００Ｌ发酵罐连续进行四批Ｌ－乳酸钙生产试验．平均发酵单耗为每ｋｇＬ－乳酸钙耗玉粉１．０３ｋｇ；平均产酸０．９５２ｍｏｌ·Ｌ－１，产酸速率为１．１８ｇ·Ｌ－１·ｈ－１．Ｌ－乳酸钙平均提取率为８１．８％．     

血清中微量镉的离心光度法测定研究

研究一种超高灵敏直接测定血清中微克级钢的新分析方法──离心光度法．在Ｃｄ－Ｂｒ－ＲＢ体系中缔合物表观摩尔吸光系数ε５６０＝５．０６×１０８Ｌ·ｍ－１·Ｃｍ－１，Ｃｄ２＋的浓度在１．０×１０－９～１０．０×１０－９ｍｏｌ·Ｌ－１范围服从Ｂｅｅｒ定律．本法用于分析测定人体血清样品中Ｃｄ２＋，得其含量为１．８７×１０－１１ｍｏｌ·Ｌ－１，变异系数为４．２％（ｎ＝５）．     

芦荟甙的伏安行为及其应用研究

芦荟甙在０．０５ｍｏｌ·Ｌ＾－１硫酸溶液中出现一灵敏的吸附伏安峰,峰电位为０．２３Ｖ（ｖｓ．Ａｇ／Ｃｌ）。峰电流与芦荟甙的浓度在２．０×１０＾－８～４．０×１０＾－７ｍｏｌ·Ｌ＾－１和４．０×１０＾－７～６．０×１０＾－６ｍｏｌ·Ｌ＾－１范围内成线性关系,检出限为５．０×１０＾－９ｍｏｌ·Ｌ＾－１（富集时间为１５０ｓ）。用线性扫描和循环估安法研究了体系的电化学行为,并应用于芦荟原胶中芦荟甙的的测定     

非离子型微乳液对铜─二甲酚橙分光光度分析的增敏作用

以含水量为９４．１％的非离子型乳化剂ＯＰ／ｎ－Ｃ５Ｈ１１ＯＨ／ｎ－Ｃ９Ｈ２０／Ｈ２Ｏ微乳液为介质，进行了Ｃｕ（１１）－二甲酚橙ＯＸ分光光度法研究（ε＝３．６×１０４Ｌ·ｍｏｌ－１·ｃｍ－１），与以水为介质（ε＝５．２×１０３Ｌ·ｍｏｌ－１·ｃｍ－１）及相同含水量的乳化剂ＯＰ胶束介质（ε＝１．１４×１０４Ｌ·ｍｏｌ－１·ｃｍ－１）相比较，测定灵敏度显著增加，样品分析结果令人满意。     

和厚朴酚的吸附伏安法研究

和厚朴酚在０．１ｍｏｌ·Ｌ＾－ＮＨ３－ＮＨ４Ｃｌ底液中,出现一灵敏吸附伏安还原峰,Ｅｐ＝－０．２３Ｖ（ｖｓ．Ａｇ／ＡｇＣｌ）。当富集时间为３ｍｉｎ时,峰电流与和厚朴酚浓度在１．０×１０＾－８￣１．０×１０＾－７ｍｏｌ·Ｌ＾－１范围内呈线性关系,检测限为３．０×１０＾－９ｍｏｌ·Ｌ＾－１,可用于中药厚朴的测定。     

Ti（Ⅳ）－N－苯甲酰苯胲络合吸附波的研究

在ｐＨ４．５的５０ｍｍｏｌ·Ｌ~（－１）ＮａＡｃ－５０ｍｍｏｌ·Ｌ~（－１）ＮａＡｃ－０．４ｍｍｏｌ·Ｌ~（－１）Ｎ－苯甲酰苯胲（Ｎ－ＢＰＨＡ）底液中，用单扫示波极谱法可得到Ｔｉ（Ⅳ）的络合物吸附波，峰电位－０．６２Ｖ（ｖｓ．ＳＣＥ）左右。导数峰高与钛的浓度在４．２×１０~（－６）～２．０×１０~（－４）ｍｍｏｌ·Ｌ~（－１）的范围内呈线性关系，检出限为２．０×１０~（－６）ｍｍｏｌ·Ｌ~（－１）。实验表明，该极谱峰属于络合吸附波，测定其络合比为ｎ（Ｔｉ（Ⅳ））：ｎ（Ｎ－ＢＰＨＡ）＝１：３。该法应用于中成药“升板胶”中微量钛的测定。     

葛根甙元的电化学行为及其应用研究

葛根甙元在０．１ｍｏｌ·Ｌ－１Ｈ２ＳＯ４底液中，出现一灵敏的示波极谱导数峰。峰电位为－１．１０Ｖ（ｖｓ．ＳＣＥ），峰电流与葛根甙元浓度在５．０×１０－７～６．０×１０－６ｍｏｌ·Ｌ－１范围内成线性关系，检出限为３．０×１０－７ｍｏｌ·Ｌ－１．用于片剂的测定，回收率９７．５％～１０５．０％，用吸附伏安法，当富集时间为６０ｓ时，峰电流与葛根甙元浓度在２０×１０－９～１．０×１０－８，１．０×１０－８～１．０×１０－７ｍｏｌ·Ｌ－１范围内呈线性关系，检出限可达５．０×１０－１０ｍｏｌ·Ｌ－１．用多种电化学手段研究体系的电化学行为，测得电极反应电子数ｎ＝１．电子转移因数α＝０．４５。体系具有吸附性，并符合Ｆｒｕｍｋｉｎ吸附等温式，吸附因数β＝１．３３×１０５，吸引因数α＝０．９５．实验表明，葛根甙元的还原为不可逆两步单电子电极反应过程。     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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