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     

导数示波极谱法测定大气中微量的二硫化碳

研究了导数示波极谱法测定大气中微量的二硫化碳。在０．６９００ｍｏｌ．Ｌ＾－１乙醇０．０９７０ｍｏｌ．Ｌ＾－１二乙胺－０．００１ ５ｍｏｌ．Ｌ＾－１ＥＤＴＡ底液中,二硫化碳产生一灵敏的峰电流。峰电位为－０．６４Ｖ（ｖｓ．ＳＣＥ）．二硫化碳浓度在１．００×１０＾－８ｍｏｌ．Ｌ＾－１－３．００×１０＾－５ｍｏｌ．Ｌ＾－１范围内,浓度与峰电流具有线性关系。检测限为１．００×１０＾－８ｍｏｌ．Ｌ＾－１．用本     

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。     

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。     

植物激素脱落酸伏安行为的研究

植物激素脱落酸在ＢＲ介质中还原产生一良好的还原峰，其微分脉冲峰峰电流与脱落酸的浓度在７．５×１０＾－６－９×１０＾－４ｍｏｌ．Ｌ＾－１范围内有线性关系，检测限为３×１０＾－７ｍｏｌ．Ｌ＾－１，并对其还原机理进行了研究。     

锌（II）与TADNm的显色反应及应用研究

研究了ＴＡＤＮｍ与Ｚｎ（Ⅱ）的显色反应。在氨性溶液中，当有０．０１４％ＣＰＢ存在时，Ｚｎ（Ⅱ）与ＴＡＤＮｍ形成１：４的红色络合物，λｍａｘ为５２５ｎｍ，ε为５．４×１０＾４Ｌ·ｍｏｌ＾－１·ｃｍ＾－１。方法用于头发和天然水中锌的测定，结果满意。     

磺胺嘧啶的极谱伏安行为研究

通过对磺胺嘧啶在多种底液中的极谱伏安行为研究，发现磺胺嘧定在ＢＲ缓冲溶液（ｐＨ４．２）和ＨＡｃ－ＮａＡｃ缓冲液（ｐＨ４．３２）中产生良好的还原峰，峰电位分别为－０．７６Ｖ和－０．７９Ｖ（ｖｓ．ＳＣＥ），在这两种底液中，峰电流或其导数峰高与磺胺嘧啶浓度在５×１０＾－７～４×１０＾－４ｍｏｌ／Ｌ和５×１０＾－６～３×１０＾－４ｍｏｌ／Ｌ范围内呈良好的线性关系，检测限为８×１０＾－７ｍｏｌ／Ｌ，可望用于     

酒石酸美托洛尔亚硝化衍生物单扫描示波极谱法的研究

研究了酒石酸美托少尔亚硝化衍生物的单扫描示波极谱与电化学行为。酒石酸美托洛尔经亚硝化拓应后,其产物在０．１ｍｏｌ／Ｌ ＨＣｌ介质中于－０．８４Ｖ附近出现一清晰的不可逆的阴极还原吸附波,其导数峰高与浓度在１．０×１０＾－５－１、．０×１０＾－６ｍｏｌ／Ｌ和１．０×１０＾－６－１．０×１０＾－７ｍｏｌ／Ｌ范围内呈现良好的线性关系。     

ZnCl2与POM的合成和结构

ＺｎＣｌ２与ＰＯＭ生成１：２加成物「Ｚｎ（ＰＯＭ）２Ｃｌ２」，Ｃ１２Ｈ１２Ｃｌ２Ｎ４Ｏ６Ｚｎ，晶体必三科晶系，空间群为Ｐ１，晶胞系数为ａ＝１１．７５５（１１）×１０＾－１０ｍ，ｂ＝１２．３５７４（７）×１０＾－１０ｍ，ｃ＝６．５９２（４）×１０＾－１０ｍ，ａ＝１０２。７３２（５）°，β＝９２．０７４（６）°，γ＝１１０．１２４（６０°，Ｖ＝８７６．２×１０＾－３０ｍ，ＭＲ＝４４４．５３，ｚ＝２，ｄ     

生物碱—半导体场效应传感器的研制及应用

研制了生物碱（秋水仙碱或毛果芸香碱）－半导体场效应传感器，并测得了器件的浓度线性范围：２．５０×１０＾－＾５－４．００×１０＾－＾３ｍｏｌ／Ｌ（秋水仙碱）；９．９０×１０＾－＾５－５．０５×１０＾－＾３ｍｏｌ／Ｌ（毛果芸香碱）。该传感器可应用于药物制章占秋水仙碱的测定，方法简便，效果良好。     

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     

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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