查询词典 spectroscopy

First the traditional non-optical detection technology for gas concentrations is briefly introduced, such as ultra-sound technology, gas sensing, catalytic thermal, gas chromatography, interferometry applications, and then the spectral analysis based on the concentration of gas detection is discussed. The latest technological developments on the differential absorption spectroscopy, Fourier transform infrared spectroscopy, tunable laser diode laser absorption spectroscopy, laser radar and differential absorption Raman scattering laser radar, laser-induced fluorescence spectroscopy, laser Photoacoustic Spectroscopy are reviewed in detail.

首先对传统的非光学气体浓度检测技术作出了简单的介绍，包括超声波技术、气敏法、热催化法、气相色谱法、干涉法应用技术，被动检气管法，然后重点阐述了基于光谱学分析气体浓度检测技术的最新发展动态，其中分别对差分吸收光谱技术、傅里叶变换红外光谱技术、可调谐激光二极管激光吸收光谱技术、差分吸收激光雷达和拉曼散射激光雷达、激光诱导荧光光谱技术、激光光声光谱技术进行了详细介绍，最后提出了现代气体浓度检测技术的发展方向。

The interaction ways between Tb3＋and horse radish peroxidase were investigated for the first time using UV-Vis absorption spectroscopy, fluorescence spectroscopy, atomic absorption spectroscopy and enzyme separation technique.

利用紫外可见吸收光谱、红外光谱、荧光光谱、原子吸收及酶分离方法，首次研究了稀土离子Tb3＋与植物辣根过氧化物酶的相互作用方式。

A novel β-diketone ligand 3-methyl-phenyl-4-octadecyl-5-pyrazolone and nanoparticle Al2O3 modified by the ligand PMOP were synthesized and characterized by infrared spectroscopy, UV-Vis spectroscopy, 1H NMR and photoluminescence spectroscopy.

合成了以β-二酮配体3-甲基－1-苯基－4-吡唑啉酮-5修饰的Al2O3纳米粒子，并用IR、UV光谱、NMR和荧光光谱等手段进行了表征。

Chapter 4:The interactions between bergenin,esculin,gallic acid and caffeic acidwith HSA in AOT/isooctane/water microemulsions were characterized for the firsttime using fluorescence spectroscopy in combination with UV absorptionspectroscopy,FT-IR spectroscopy,CD spectroscopy and dynamic light scattering technique.

第四章：利用荧光光谱法、紫外-可见吸收光谱法、圆二色性光谱法、傅里叶变换红外光谱法和动态激光散射技术首次系统研究了在AOT/异辛烷/水构成的反相微乳介质中岩白菜素、秦皮甲素、没食子酸和咖啡酸与HSA之间的相互作用。

The Fe3O4/Au nanoparticles have been characterized by X-ray powder diffraction, ultraviolet-visible spectroscopy, scanning elec-tron microscopy with the energy dispersive spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and superconducting quantum interference device magnetometry.

采用X射线粉末衍射仪、紫外吸收可见光谱、带有电子能谱仪的扫描电子显微镜、透射电子显微镜、光电子能谱、超导量子干涉仪等方法，对复合粒子的形态、结构、组成以及磁学性质进行了表征。

Several transient compounds were synthesized by the homo- and heterogeneous reactions of reactive halogen compounds, In-situ ultraviolet photoelectron spectroscopy and photoionization mass spectroscopy as well as theoretical calculations were used to study their molecular structures, stability and molecular orbital properties, their electronic structures and geometric structures were obtained for the first time; Simultaneously, the electronic structure and thermal dissociation of acetyl peroxynitrate and trifluoroacetyl peroxynitrate which have great importance in the atmospheric chemistry were studied; The substituent effects of series of halopyridines and halothiophenes were studied by the ultraviolet photoelectron spectroscopy method for the first time. The atmospheric chemical reaction between peroxyacetyl radicals with IO radicals as well as the dissociation of the most stable isomer of CH3COIO3 were calculated by density functional theory, it was found that the CH3COOIO2 isomer may be act as a new reservoir of inorganic iodine in the stratosphere.

通过活性卤素的系列均相与非均相化学反应合成了几种瞬态物种，采用原位紫外光电子能谱和光电离质谱结合量子化学理论计算对化合物的分子结构、稳定性以及分子轨道特性进行了研究，首次获得了这些物种的电子结构和几何结构的信息；同时研究了大气中有重要作用的乙酰过氧硝酸酯和三氟乙酰过氧硝酸酯的电子结构性质及热解过程；采用紫外光电子能谱手段首次研究了系列卤代吡啶和噻吩的取代基效应；通过量子化学理论计算研究了乙酰基过氧自由基与IO自由基的大气化学反应及其最稳定异构体CH3COOIO2的解离，发现该物种可能是无机碘化合物在平流层中的储库物种。

SO〓〓/M〓O〓 solid superacid was applied to the photocatalytic oxidation of organic pollutants for the first time. Porous SO〓〓/TiO〓 solid superacid catalysts with high specific surface area were prepared by sol-gel method. The photocatalytic degradation of bromomethane was used as model reaction. The influence of impregnation with H〓SO〓 solution on the structure of catalysts and their photocatalytic performance was systematically studied by using X-ray diffraction, X-ray photoelectron spectroscopy, N〓 sorption analysis applying BET method, UV-Vis diffuse reflectance spectroscopy, FTIR spectroscopy, O〓-TPD and photocatalytic activity measurement. The acidity of TiO〓-based catalysts was investigated by Hammett indicator method, NH〓-TPD and IR spectra of pyridine adsorbtion. The mechanism of superacidifing effects on photocatalytic performances such as the photocatalytic degradation rate of bromomethane, apparent kinetic constant and apparent quantum efficiency was discussed.The results indicated that SO〓〓 is combined with metal ions of TiO〓 in a chelating bidentate mode.

本文首次将SO〓〓/MxOy型固体超强酸催化剂用于光催化氧化有机污染物研究，采用溶胶-凝胶法制备了具有多孔性和大比表面结构的二氧化钛基固体超强酸光催化剂SO〓〓/TiO〓，以光催化降解溴代甲烷为模型反应，系统地研究了H〓SO〓浸渍处理对催化剂表面酸性及其气相光催化性能的影响，结合XRD、BET、XPS、FTIR、Hammett指示剂法、吡啶吸附红外光谱、NH〓-TPD、O〓-TPD、紫外可见漫反射光谱等多种表征手段，深入地讨论了超强酸化对TiO〓的改性机理，阐明了引起SO〓〓/TiO〓超强酸催化剂光催化降解溴代甲烷的转化率、表观反应速率常数和表观量子效率变化的本质原因。

The Fourier transform infrared spectroscopy,ultraviolet-visible spectroscopy,nuclear magnetic resonance spectroscopy(1H NMR)and TG analysis were used to study the oxidation of corn stover lignin by chloride dioxide and subsequently modified by furfuryl alcohol.

采用傅里叶变换红外光谱、紫外-可见光谱、核磁共振(1HNMR)以及热重TG分析技术对玉米秸秆木质素被二氧化氯氧化前后的结构变化及其与呋喃甲醇改性的产物进行了表征。

The method by drying/adsorption was used to prepare DNA adsorptively modified electrodes, and thus-resulting DNA-modified electrodes were electrochemically and spectroscopically characterized, including cyclic voltammetry, scanning tunneling microscopy, Raman spectroscopy, in-situ UV/Vis reflection spectroscopy, X-ray photoelectron spectroscopy, and alternating current impedance. Some information about the state of DNA immobilized on electrode surfaces was obtained.

鉴于此，本论文工作首先利用简便的干燥吸附法制备获得DNA吸附修饰电极，采用电化学方法及多种谱学仪器方法如STM，XPS，Raman，交流阻抗，UV-Vis现场光谱等对DNA修饰电极进行了表征，获得了有关DNA在电极表面状态等有价值的信息；又采用自组装单分子层修饰技术，制备出DNA共价键合修饰SAM/电极，并对制备条件进行了优化，利用XPS及电化学方法对修饰电极进行了表征。

"Specialized techniques include Raman spectroscopy, nuclear magnetic resonance, nuclear quadrupole resonance, dynamic reflectance spectroscopy, microwave and gamma ray spectroscopy, and electron spin resonance."

专门的光谱技术有拉曼光谱、核磁共振、原子核四极矩共振、动态反射光谱、微波和γ射线光谱，以及电子自旋共振。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。