铁－α－安息香肟的新吸附催化波

本文给出了铁－α－安息香肟络合物在Ｎａ２ＣＯ３－ＮａＨＣＯ３底液中的极谱吸附催化波．在该条件下，峰电位Ｅｐ＝－０．５８Ｖ（ｖｓ．ＳＣＥ）．铁在０～０．５μｇｍＬ－１范围内浓度和导数峰高呈线性关系．检测限为：５×１０－４μｇｍＬ－１．具有良好的稳定性和选择性．测定了头发及自来水中的痕量铁     

胆绿素的极谱分析研究

介绍了ＮａＯＨ溶液中（ｐＨ＞１１）利用胆绿素的阳极波的极谱分析方法，研究发现胆绿素在－０．４０Ｖ（ＶＳ．ＳＣＥ）左右产生一灵敏、稳定的极谱阳极波，该波的二阶导数与胆绿素溶液的浓发在２×ｌ０￣（－７）～１．８×ｌ０￣（－６）ｍｏｌ·Ｌ￣（－１）范围内成线性关系，其检测限为８×ｌ０（－８）ｍｏｌ·Ｌ￣（－１），并且在胆红素或０．０２ｍｇ·Ｌ￣（－１）白蛋白共存时无干扰，可用于胆绿素的测定，并对胆绿素的极谱阴极波和循环伏安图进行了研究，考察了胆绿素在－０．４０Ｖ（ＶＳ．ＳＣＥ）处的可逆波和－０．９８Ｖ（ＶＳ．ＳＣＥ）处的过氧化氢催化波的性质，对胆绿素的电化学反应提出了可能的机理。     

铁,锰—PAN配合物吸附波及其应用

在５×１０－５ｍｏｌＬ－１的１－（２－吡啶偶氮）－２－萘酚（ＰＡＮ）－０．０５ｍｏｌＬ－１磺基水杨酸（ＳＳＡＬ）－０．３７５ｍｏｌＬ－１ＮａＯＨ体系中，铁、锰与ＰＡＮ形成的配合物均有灵敏的配合物吸附波，导数峰电位铁为－０．６３Ｖ（ｖｓＳＣＥ），锰为－０．５５Ｖ，其浓度在一定范围内与峰电流有良好线性关系用于物质中（如人发）微量铁、锰连续测定，结果满意．     

铜,锌—四（4—三甲胺基苯基）卟啉的极谱研究

铜，锌与四（４－三甲胺基苯基）卟啉络合物极谱波均匀络合吸附波，峰电位分别为Ｅｐｃｕ＝－１．２２Ｖ（相对于ＳＣＥ），Ｅｐｚｎ＝－１．４７Ｖ，测定了络合比及条件稳定常数。     

铍的极谱吸附波研究

本文介绍了铍与钍试剂Ｉ络合物的极谱特性．在氨性介质中，铍与钍试剂Ｉ生成具有电活性的络合物．该络合物在－０．６４Ｖ有一灵敏的吸附波．最适宜的底液条件为 ０．２Ｍ ＮＨ３·Ｈ２Ｏ－１．０ＭＮＨ４Ｃｌ—０．００２％钍试剂 Ｉ—０．１３％ＥＤＴＡ。铍的测定范围为０．０００２～１．０ 微克／毫升．研究了干扰情况，对极谱波的还原机理进行了初步探讨，并成功地应用于环境样品煤飞灰中痕量铍的测定．     

粮食中微量锌的示波极谱测定

本文采用示波极谱法测定粮食中的锌，并对底液组份进行了探讨试验，在０．６％乙二胺—０．００２Ｎ洒石酸体系中，锌能产生灵敏的导数极谱波，在锌浓度为０．０２μｇ／ｍＬ—０．４μｇ／ｍｌ范围内与峰电流具有良好的线性关系。方法简便、快速、结果满意，可用于粮食和食品中锌的测定     

Pb（Ⅱ）－Cup络合物导数极谱波研究

在ＰＨ为５～６的ＨＡｃ－六次甲基四胺溶液中，Ｐｂ（Ⅱ）与铜铁试剂产生的络合物在单扫描示波极谱仪上可观察到一灵敏的导数极谱波，其峰电位为－０．６４Ｖ（ＶＳ，ＳＣＥ），峰电流与铅浓度在９．６×１０－８～５．８×１０－６ｍｏｌ·Ｌ－１范围内成线性关系，检测限为１．９×１０－６ｍｏｌ·Ｌ－１，用以测定铅锌矿中铅的结果良好．同时研究了形成铅－铜铁试剂络合物吸附波的条件和性质，并用极谱法测定其络合比为１：１．     

安眠酮的吸附极谱波研究

在ｐＨ４．５缓冲溶液中，安眠酮在－１．１７Ｖ处产生一灵敏吸附极谱波，利用此波可测定微量安眠酮，线性范围为１．０×１０＾－７￣１．０×１０＾－６ｍｏｌ·Ｌ＾－１，检测下限为９．０×１０＾－８ｍｏｌ·Ｌ＾－１，所提出的方法用于片剂及血清中安眠酮的测定，结果满意。     

铜、锌－四（4－三甲胺基苯基）卟啉的极谱研究

铜、锌与四（４－三甲胺基苯基）卟啉络合物极谱波均为络合吸附波，峰电位分别为Ｅ＿（ｐＣｕ络）＝－１．２２Ｖ（相对于ＳＣＥ），Ｅ＿（ｐＺｎ络）＝－１．４７Ｖ．测定了络合比及条件稳定常数。     

4－（8－氨基喹啉－5－偶氮）－苯磺酸钠的极谱行为研究

研究了４－（８－氨基喹啉－５－偶氮）－苯横酸钠（ＳＡＯＡＢＳ）的极谱行为。在０．０２ｍｌ／ＬＮＨ＿３·Ｈ＿２Ｏ－０．３６ｍｏｌ／ＬＮＨ＿４Ｃｌ的缓冲溶液中，ＳＡＱＡＢＳ产生两个明晰的阴极化极谱波，其二次导数波的峰电位分别为－０．５２Ｖ和－１．３０Ｖ（Ｖｓ．ＳＣＥ）。用ＳＡＱＡＢＳ的第一个波作为定量分析的基础，其线性范围为１．０×１０￣（－６）～８．０×１０￣（－５）ｍｏｌ／Ｌ。氧不干扰ＳＡＱＡＢＳ的测定。还研究了ＳＡＱＡＢＳ的电极过程及反应机理。     

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.     

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     

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

正~~