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PMN has a function of oxidation and adsorption under acidic conditions, such as Gentian Purple, Methylene Blue, Conga Red, Rhodamine B and Methyl Orange. PMN can oxidize diversiform dyes (pH<4. 5). The increasing of concentration on Mn and wastewater UV-Vis spectra after contact can prove it.

PMN在酸性条件下(pH<4.5)可氧化多种染料,如龙胆紫、亚甲基蓝、刚果红、罗丹明B和甲基橙等,通过测定体系Mn的生成量和模拟废水脱色后的紫外可见吸收曲线可有力证明上述观点。

But, because of the complexity of the dye molecule, there has been short of detailed comprehension in its photocatalytic degradation process. The key problem is difficult to detect the intermediates clearly. In this paper, the photocatalytic degradation of azo dye Congo red in water solution was investigated on UV irradiating TiO2 in the homemade reactor. The optimization conditions were determined and then the rate of decolorization, COD decrease, yield of CO2 and varies pH of aqueous solution during illumination were detected; The varies of the possible intermediates during degradation process were monitored with UV-VIS spectrum and HPLC. The possible mechanism of Congo red photocatalytic degradation is discussed combined with the data of MS.

本文选择有代表性的常见偶氮染料—刚果红作为研究对象,以自制TiO2为催化剂和小功率紫外灯为光源,在自制光反应器上确定了光催化降解的优化条件,并在这个优化条件下测定了降解过程中的脱色率、COD去除率和CO2生成量;利用数显酸度计、紫外可见分光光度计和高效液相色谱仪跟踪测定了降解过程中的可能产物,并结合质谱的数据初步探讨了刚果红的可能降解机制。

By Vis-UV detector, column efficiencies of conically shaped preparative chromatographic columns with porous polytetrafluor oethylene frit and porous stainless steel frit were compared.

利用柱后可见-紫外检测,比较了采用多孔聚四氟乙烯材料和多孔烧结不锈钢材料作为台锥形制备液相色谱柱柱头筛板材料时的柱效;用柱上可视化方法研究了柱头筛板的直径对流型的影响。

As compared to the l max absorption of regioregular poly(3-alkylthiophene)s (RR-P3ATs), the red-shift about 120 nm for RR-P3ATVs resulted from the more coplanarity and the longer conjugation length due to the additional vinylene linkage introduced to the conjugated chains.

与立体规则性聚(3-烷基噻吩)(RR-P3ATs)比较, RR-P3ATVs 之 UV-vis 最大吸收波长约有120 nm 的红外移,显示共轭主链导入乙烯基后,有较佳的共平面性与较长的共轭长度。

Aim of the article was to provide a new approach of the fingerprint diagram research for TCM by means of spectrometry, which was capable of indicating the character of TCM. For the purpose of getting indication of NIRDRS convolution fingerprint diagram, the visualization technology was adopted to display the information which have been processed by convolution transform, then color-coded image was displayed in computer and the similarity coefficient was worked out between the fingerprint diagrams by cosine formula. Part one Theory and system design The spectrometry (UV/Vis, NIR, IR) is disadvantageous in the fingerprint analysis of complex systems both its difficulty of specificity and the similarity of TCM.

本文的研究目标是采用光谱手段,建立能够标示中药特性的指纹图谱技术,为中药指纹图谱研究提供新的思路和方法:通过采集中药的光谱信号,结合有"数学显微镜"美誉的小波变换技术,对光谱信号进行数据挖掘,捕捉和研究物质对光吸收特性的变化,大幅度增加可供利用的信息;同时运用科学计算可视化手段及伪彩色图像处理技术,得到基于虚拟直观计算机图像信息的中药光谱指纹图谱,并将该指纹图谱应用于药物的鉴别分析。

This paper is made up of 6 chapters; chapter 1 summarizes the interaction of low molecular weight compounds with DNA; chapter 2 to 6 focus on the electrochemical studies of some organic dyes such as pyronine B, phenosafranine, brilliant cresyl blue, crystal violet, neutral red etc. and their interaction with DNA, respectively. Different electrochemical methods such as linear sweep voltammetry, cyclic voltammetry and UV-Vis spectrophotometric method are applied to the investigation.

论文由6章组成,第1章综述了小分子和DNA的相互作用;第2至6章分别筛选了吡啰红B、酚藏花红、灿烂甲酚蓝、结晶紫和中性红等小分子染料,以汞电极如静汞电极、滴汞电极作为工作电极,采用循环伏安法、线扫极谱法等电化学手段,结合紫外-可见分光光度法,研究了它们的电化学行为以及和DNA的相互作用。

In this paper, the interactions offour dyes, gallocyanine, victoria blue B, brilliant cresyl violet andnew methylene blue, with DNA were investigated using electrochemical andUV-Vis spectroscopic methods.

本论文应用电化学方法和紫外-可见光谱法研究了四种染料小分子没食子蓝、维多利亚蓝B、灿烂甲酚紫、新亚甲蓝和DNA的相互作用。

The electrical and electrochemical properties of PTh films were examined with the UV-Vis spectrum, cyclic voltammetry and four-probe method.

利用紫外可见光谱、循环伏安法和四探针法研究了聚噻吩膜的电子和电化学特性。

The UV-Vis absorption spectra, steady-state fluorescence spectra and the fluorescence decay curve of 4--4′--azobenzene in chloroform solution were measured.

采用紫外可见吸收、稳态荧光光谱和荧光衰减测量技术,观察了4-硝基-4′-氨基偶氮苯在氯仿溶液中的光致变色现象及分子的跃迁能级和能级寿命。

Their properties were characterized by X-ray diffraction, UV-Vis diffuse reflection spectroscopy, and scanning electron microscopy.

用扫描电镜、X射线衍射和紫外-可见漫反射光谱对样品进行表征。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。