间磺酸基偶氮氯膦光度法测定钯的研究

本文研究了间磺酸基偶氮氯膦（简称ＣＰＡ－ｍＳ）于钯（Ⅱ）的显色反应条件，实验结果确定，在ｐＨ＝３．００～５．５０的ＨＡｃ－ＮａＡｃ缓冲溶液中，钯（Ⅱ）与ＣＰＡ－ｍＳ生成１∶２的稳定蓝色配合物，试剂的λｍａｘ＝５６０ｎｍ，配合物的λｍａｘ＝６４０ｎｍ，△λｍａｘ＝８０ｎｍ。配合物摩尔吸光系数ε＝２．１５×１０４Ｌ．ｍｏｌ（－１）．ｃｍ（－１）。Ｐｄ（Ⅱ）浓度在０．５～１８μｇ／１０ｍｌ内服从比尔定律。二十多种离子存在一定量不干扰，经离子交换分离后测定矿样中的钯量，获得满意的结果。     

铕─偶氮胂Ⅲ溶液相和树脂相配合物的研究及树脂导数光谱初探

本文研究了－偶氮胂Ⅲ（ＡｒＳⅢ）配合物在溶液中和在离子交换树脂中的形成条件．给出了－ＡｒｓⅢ在溶液中和树脂中各自的吸收光谱，λｍａｘ液＝６５０．３ｎｍ，λｍａｘ树脂＝６６０ｎｍ。在大量硝酸盐存在下，与形成Ｅｕ（ＮＯ３）３），该配阴离子与ＡｒⅢ显色后，能为强碱性阴离子交换树脂吸附，以ＮＯ－３型树脂吸附率高且保持恒定。对溶液相及树脂相配合物的组成研究表明：溶液相Ｅｕ：ＡⅢ＝１：１；树脂相Ｅｕ：ＡｒｓⅢ＝１：６。树脂配合物一阶导数光谱峰位置为：５７６．０（＋）ｎｍ，１．５９９（十）Ｄ１；６５５．２（－１）ｎｍ，２．１１４（－）Ｄ１。     

四氯对苯醌分光光度法测定吡哌酸

本文研究了在硼砂介质中，吡哌酸与四氯对苯醌生成稳定的１：１络合物，其最大吸收波长λｍａｘ＝３７０ｎｍ，表观摩尔吸光系数ε３７０＝３．３×１０４Ｌ·ｍｏｌ－１·ｃｍ－１，本方法测定药物制剂含量与文献方法一致，回收率为９９．２５～１００．３％，相对标准偏差为１．２２％．     

ETDA—CPC光度法测定常量钴

在ｐＨ＝５－６．５，Ｃｏ（Ⅲ）与ＥＤＴＡ和氯代十六烷基吡啶生成红紫色三元络合物，λｍａｘ＝５５０ｎｍ，摩尔吸光系数ε值３２６Ｌ．ｍｏｌ＾－１，ｃｍ＾－１，钴量在０．１－６ｍｇ／５０ｍｌ范围内符合比尔定律。本法用于钴矿样中钴的测定，结果满意。     

锌(Ⅱ)-3,5-二溴-PADAP-C_2O_4~(2-)-吐温80显色体系的分光光度法研究及应用

研究了锌（Ⅱ）－３，５－二溴－ＰＡＤＡＰ－草酸盐－吐温８０体系形成四元混配络合物的显色反应条件，确定了络合物的组成，其最大吸收波长λｍａｘ＝５７２ｎｍ，表观摩尔吸光系数为ε５７２ｎｍ＝１．５×１０５Ｌ·ｍｏｌ－１·ｃｍ－１，锌含量在０～６μｇ／２５ｍｌ范围符合比耳定律．方法用于测定脱脂奶粉及人发中的微量锌（Ⅱ），结果满意．     

分光光度法测定土壤及废水中铬

在ｐＨ５．４ＨＡｃ－ＮａＡｃ缓冲溶液中，Ｃｒ（Ⅵ）与苯基荧光酮（ＰＦ）在溴化十六烷基三甲基铵（ＣＴＭＡＢ）存在下生成络合比为１：２的紫红色配合物，此配合物最大吸收波长λｍａｘ位于５８２ｎｍ，络合物的表现摩尔吸光系数为εｍａｘ＝８．０９×１０４Ｌ·ｍｏｌ－１·ｃｍ－１，Ｃｒ（Ⅵ）含量在０ｇ／Ｌ～２．８×１０ˉ４ｇ／Ｌ范围遵守比尔定律。     

铜与丙酮醛双（N,N‘—二丁基）缩氨基硫脲显色反应的研究

在ｐＨ＝５－１２的乙醇水溶液中,Ｃｕ６２＋与丙酮醛双,Ｎ．Ｎ‘－缩氨基硫脲可形成１：１型络合物,其λｍａｘ＝４８８ｎｍ,ε４８８＝１．０９×１０＾４Ｌ．ｍｏｌ＾－１．Ｃｕ＾２＋浓度在０－５．０ｍｇ／Ｌ内服从比耳定律;若用氯仿萃取后测定,其ε４８８＝１．７７×１０＾５Ｌ．ｍｏｌ＾－１ｃｍ＾－２,Ｃｕ＾２＋浓度在０－０．５０ｍｇ／Ｌ内服从比耳定律。     

偶氮染料异方酸二酰胺与氟离子的显色体系

偶氮染料异方酸二酰胺（ＢＮＢＰＳ）在ＤＭＳＯ中与氟离子（水溶液）有良好的显色作用．显色剂与ＰＨ为３．８～８．０的Ｆ－试液反应，由紫红色迅速变为蓝色（△λ＝１０２ｎｍ），λｍａｘ＝６３２ｎｍ，４ｈ内吸光度值保持不变，摩尔吸光系数ε５３２＝１．７×１０４Ｌ·ｍｏｌ－１·ｃｍ－１．Ｆ－１浓度在０～５μｇ／１０ｍＬ范围内线性关系良好大量的Ｃｌ－，ＮＯ３，Ｋ＋和Ｎａ＋存在时，对其测定无干扰Ｂｒ－，Ｉ－，Ｆｅ３＋，Ａｌ３＋和Ｂａ２＋等离子的允许共存量较大．阳离子与显色剂无显色作用．     

二安替比林基—（3,4—亚甲二氧基）—苯基甲烷光度法测定微…

合成了二安替比林基－（３，４－亚甲二氧基）苯基甲烷，研究了ＤＡＤＭＰＭ与Ｃｒ的显色反应。在Ｈ３ＰＯ４介质中，在Ｍｎ和吐温２０存在下，Ｃｒ与ＤＡＤＭＰＭ反应生成橙黄色产物，λｍａｘ为４７０ｎｍ，摩尔吸光系数ε＝３．０×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１。     

锌（II）—3,5—二溴—PADAP—C2O4^2——吐温80显色体系的分光…

研究了锌（Ⅱ）－３，５－二溴－ＰＡＤＡＰ－草酸盐－吐温８０体系形成四元混配络合物的显色反应条件，确定了络合物的组成，其最大吸收波长λｍａｘ＝５７２ｎｍ，表现摩尔吸光系数为ε５７２ｎｍ＝１．５×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，锌含量在０￣６μｇ／２５ｍｌ范围符合比耳定律。方法用于测定脱脂奶粉及人发中的微量锌（Ⅱ），结果满意。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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