钴（Ⅱ）—氟哌酸络合物波的研究

氟哌酸（ＮＦＬＸ）在０．１ｍｏｌ·Ｌ＾－１ＮＨ３－ＮＨ４Ｃｌ（ｐＨ７．５）缓冲溶液中，与钴（Ⅱ）离子形成络合物，在单扫示波极谱仪上得一良好的络合物还原波，峰电位Ｅｐ＝－１．０９Ｖ（ｖｓ．ＳＣＥ），峰电流ｉｐ与钴（Ⅱ）浓度在０．０５０～２．５μｍｏｌ·Ｌ＾－１范围内成线性关系。用电化学手段研究了该体系的性质和反应机理，实验表明该波为不可逆吸附波。     

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。     

Ag（I）－QARH络合物在胶束溶液中的光度性质

在ｐＨ５．０的ＨＯＡｃ－ＮａＯＡｃ缓冲溶液中，当有０．１０％ＳＬＳ存在时，Ａｇ（Ｉ）与ＱＡＲＨ形成１：１络合物，λ＿（ｍａｘ）为５３５ｎｍ，ε为１．０５×１０￣５Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），Ａｇ（Ｉ）含量在０．００５～１．００μｇ／ｍＬ范围内服从Ｂｅｅｒ定律，稳定常数为１．７８×１０￣（１５）．所提出的方法用于精铜矿中微量银的测定，结果满意     

Ag（I）—QARH络合物在胶束溶液中的光度性质

在ｐＨ５．０的ＨＯＡｃ－ＮａＯＡｃ缓冲溶液中，当有０．１０％ＳＬＳ存在时，Ａｇ（Ｉ）与ＱＡＲＨ形成１：１络合物，λｍａｘ为５３５ｎｍ，ε为１．０５×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，Ａｇ（Ｉ）含量在０．００５￣１．００μｇ／ｍＬ范围内服从Ｂｅｅｒ定律，稳定常数为１．７８×１０＾１５。所提出的方法用于精铜矿中微量银的测定，结果满意。     

溶菌酶的极谱催化氢波研究与应用

在０．３６ｍｏｌ／ＬＮＨ４Ｃｌ－０．０４ｍｏｌ／ＬＮＨ３Ｈ２Ｏ（ｐＨ８．３１）支持电解质中,溶菌酶（ＬＥ）产生一个极谱催化氢波,峰电位为－１．８０Ｖ（ｖｓ ＳＣＥ）．该极谱催化氢波二阶导数峰电流与ＬＥ浓度在 １．２ × １０－８－５．６ × １０－８ｍｏｌ／Ｌ范围内有线性关系．用于鸡蛋清中ＬＥ的测定,结果满意．     

新显色剂5－（4＇－氯－2＇羧基苯偶氮）绕丹宁与银的显色反应及其应用研究

在ＴｒｉｔｏｎＸ－１００存在下，ｐＨ＝５．０～５．５时，新试剂Ｃｌ－ＲＡＣＰ与银生成配合物，其最大吸收波长为５００ｎｍ，配合物的配位比为１：２，表观摩尔吸光系数为１．１×１０￣５·Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１）。Ａｇ（Ⅰ）的浓度在０～２．０μｇ·ｍｌ￣（－１）范围内符合比尔定律。该法用于阳极泥和废定影中银的测定，结果较满意，相对标准偏差为１％。     

吸附溶出伏安法测定水中痕量钴

介绍测定痕量钴的一种方法。在０．０１ｍｏｌ／Ｌ ＮＨ３·Ｈ２Ｏ－ＮＨ４Ｃｌ和１．０×１０＾－６ｍｏｌ／Ｌ酸性铬兰Ｋ（ＡＣＢＫ）溶液中，Ｃｏ（Ⅱ）产生很灵敏的还原波，其峰电位是－０．５２Ｖ（ｖｓ、ＳＣＥ）．Ｃｏ（Ⅱ）的浓度在２．０×１０＾－８￣５．０×１０＾－７ｍｏｌ／Ｌ的范围内与峰电流成直线关系，检测限是５．０×１０＾－９ｍｏｌ／Ｌ。这一方法用于测定水中痕量钴，结果令人满意。     

非有机溶剂萃取光度法测定铀的研究—PEG—Arsenazo Ⅱ—（NH_4）_2SO_4体系

本文研究了偶氮胂（Ⅲ）作萃取剂和显色剂，在ＰＥＧ－（ＮＨ４）２ＳＯ４－Ａｒｓｅｎａｚｏ（Ⅲ）体系中的非有机溶剂萃取光度法测定铀．将配合物从ｐＨ２．０（ＨＣｌ）溶液或ＨＣｌ—ＮａＡｃ缓冲溶液）水溶液中萃取至ＰＥＧ相，其最大吸收波长位于６５５ｎｍ，摩吸光系数为３．０×１０４Ｌ．ｍｏｌ－１．ｃｍ－１，Ｕ（ＶＩ）的线性范围为０－４．５μ／ｍｌ，轴与ＡｒｓｅｎａｚｏＣ（Ⅲ）的配位组成为１：１．将方法用于煤渣中铀的测定，获得了满意结果．     

316L不锈钢楔形缝隙内溶液化学

用微电极研究了３１６Ｌ不锈钢楔形缝隙在３．５％ＮａＣｌ溶液（室温）中的溶液化学变化规律。结果表明：在两种不同缝隙开口情况下，缝隙内各点的Ｃｌ－都发生了富集，ｐＨ也都降低；当缝隙开口为１．３６ｍｍ时，缝隙内Ｃｌ－浓度随时间和与缝口距离的增大而增大，ｐＨ值随之下降，最高Ｃｌ－浓度为１．６ｍｏｌ／ｌ，最低ｐＨ值为５．０１；当缝隙开口为０．２２ｍｍ，最高Ｃｌ－浓度为１．１ｍｏｌ／ｌ，最低ｐＨ值为３．１．缝隙内溶液酸化是由于金属离子的水解和Ｃｌ－的共同作用，缝内金属氯化物浓度甚至可以达到饱和态。     

非对称水溶性卟啉与钯（II）显色反应的光度法研究

研究了非对称性５，１０，１５－三（４－甲基－３－磺基苯）－２０－［４－（５－氟尿嘧啶）－３－磺基苯］卟啉（ＭＦｕＳＰＰ）测钯的显色条件，在表面活性剂十二烷基磺酸钠存在下，ｐＨ４．５￣６．０的弱酸性ＨＡｃ￣ＮａＡｃ缓冲介质中，用抗坏血酸催化，Ｐｄ（Ⅱ）与ＭＦｕＳＰＰ形成１：１配合物，最大吸收波长４１５ｎｍ，摩尔吸光系数ε＝１．８×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，线性范围０￣２．０μｇ／１０ｍｌ     

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

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