洗必泰的吸附伏安法测定

报导了洗必泰的一种新的测定方法,在０．０１ｍｏｌ／ＬＨＡｃ－ＮａＡｃ溶液中,洗必泰产生一很敏锐的吸附波,峰电位在－１．１６Ｖ（ｖｓ．ＳＣＥ）峰电流与洗必泰浓度在０．００５～１μｇ／ｍＬ,范围内成直线关系,该法用于洗必泰样品测定,结果令人满意。     

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，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。     

冷原子吸收与原子荧光法测定 As、Sb、Bi、Hg 的方法研究

样品经王水分解后，调制成１０％的ＨＣｌ介质。移至自制的Ｈｇ发生器中，加入ＳｎＯ２还原，以空气作载体，将Ｈｇ原子蒸气载入测Ｈｇ仪吸收管，冷原子吸收测Ｈｇ。便可实现一次溶矿与原子荧光连测样品中的微量Ａｓ、Ｓｂ、Ｂｉ、Ｈｇ。检出下限分别为：Ａｓ０．１８μｇ／ｇ；Ｓｂ０．０６７μｇ／ｇ；Ｂｉ０．０８７μｇ／ｇ；Ｈｇ０．０１１μｇ／ｇ。ＲＳＤ％分别为Ａｓ１１％；Ｓｂ６．３％Ｂｉ７．１％；Ｈｇ１．２％。     

异烟肼-次氯酸钠-鲁米诺化学发光反应的研究

利用异烟肼可增强次氯酸钠－鲁米诺体系的化学发光,结合流动注射技术,建立了一种新的异烟肼的流动注射化学发光分析方法．异烟肼在８．０×１０－６～１．０×１０－８ｇ／ｍＬ浓度范围内与化学发光信号强度呈线性关系．检出限为１．７×１０－９ｇ／ｍＬ．ＲＳＤ为１．９％（ｎ＝１１,ｃｓ＝５×１０－７ｇ／ｍＬ）．     

溶出伏安法测定痕量锌

报道了一种测定痕量锌离子的灵敏的电分析方法。在ｐＨ＝４．５的２．０×１０￣（－２）ｍｏｌ／ＬＨＡｃ－ＮａＡｃ溶液中，锌－钛铁试剂络合物在－０．８１Ｖ产生一灵敏的吸附还原峰，峰电流与锌离子的浓度在０．０５－２．０μｇ／ｍＬ范围内成线性关系，最低检测限为０．０１μｇ／ｍＬ．拟定了测定痕量锌的方法，应用于粮食中锌的测定，结果令人满意．     

荧光染料离子缔合作用在荧光法测定微量DNA中的应用

建立了高灵敏荧光分光光度测定ＤＮＡ 和ＲＮＡ 的新方法． 方法的线性范围分别为０－０４ ～１－２０μｇ／ｍ Ｌ（ 鲑鱼精子ＳＭＤＮＡ 和小牛胸腺ＣＴＤＮＡ） , ０－１０ ～１－２０μｇ／ｍＬ（ 酵母ＲＮＡ） , 检测限分别为１７ｎｇ／ｍＬ（ＳＭＤＮＡ） , ２４ｎｇ／ｍＬ（ＣＴＤＮＡ） , ９８ｎｇ／ｍＬ（ＲＮＡ） ． 将方法用于实际样品金黄色葡萄球菌中ＤＮＡ 含量的测定, 结果满意．     

蘑芋精粉对小鼠免疫器官和细胞因子水平的影响

ＡＫＰ（ＡｍｏｒｐｈｏｐｈａｌｕｓｋｏｎｊａｃＫＫｏｈｎＰｏｗｄｅｒ）具有明显促进小鼠免疫功能的作用,对胸腺指数和脾指数具有增高作用．将小鼠ＭΦ用ＬＰＳ（１０μｇ／ｍＬ）孵育１８～２４ｈ后,培养上清ＩＬ１和ＴＮＦα水平均随ＡＫＰ浓度的增加而增加,表明ＬＢＰ２对ＭΦ合成和释放ＩＬ１、ＴＮＦα具明显促进作用．此外,ＡＫＰ对小鼠血清中ＴＮＦα水平也有一定的促进作用．     

银微盘电极阴极溶出伏安法测定黄酒啤酒中L-半胱氨酸

基于Ｌ－半胱氨酸（Ｃｙｓ）能与Ａｇ＋生成难溶化合物特性，在银微盘电极上成功实现了Ｃｙｓ－Ａｇ阴极溶出伏安法．该法操作简便，无需搅拌、不要镀汞、精密度好，于０．２ｍｏｌ／ＬＨＡｃ－ＮａＡｃ介质中，Ｃｙｓ浓度为５．０×１０－７～１．０×１０－４ｍｏｌ／Ｌ范围与峰电流有良好的线性关系．用于黄酒、啤酒中Ｌ－半胱氨酸含量的测定，结果令人满意．     

反相流动注射催化光度法测定痕量铁的研究

基于在丙三醇存在下，以邻菲罗啉作活化剂，铁（Ⅲ）对溴酸钾氧化维多利亚天蓝Ｂ褪色的催化作用，建立了痕量铁的反相流动注射分析（ｒＦＩＡ）新方法．方法的线性范围为０．０３～１．８０μｇ／ｍＬ铁（Ⅲ），对０．０５μｇ／ｍＬ铁（Ⅲ）平行测定１１次的相对标准偏差为１．５％，进样频率为１６ｓ／ｈ．方法可直接用于水样、工业盐酸等样品中痕量铁的测定，回收试验的回收率为９１％～１０５％．     

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