raman-spectroscopy拉曼光谱.ppt,Tufts University Biomedical Raman Spectroscopy Jason T. Motz Harvard Medical School and The Wellman Center for Photomedicine Massachusetts General Hospital The Raman Effect: Inelastic Scattering Some Vibrations in Benzene E
The Nobel Prize in Physics 1930 “for his work on the scattering of light and for the discovery of the effect named after him” Sir Chandrasekhara Venkata Raman (1888 – 1970) Calcutta University Calcutta, India 一、激光拉曼光谱基本原理 principle of Raman spectroscopy Rayleigh散射: 弹性碰撞;无...
激光拉曼光谱-1详解 拉曼光谱分析方法laserRamanspectroscopy 2021/4/1 1 基本内容 一、概述二、原理三、与红外光谱的关系四、仪器五、应用 2021/4/1 2 一、概述 350 No.ofRamanpublications ➢催化科学技术与催化研究方法密300 不可分 250 200 现代物理技术基于光、声、电磁、150 电子、原子、离子和热100 ...
仪。Al2O3或SiO2负载钒氧化物催化剂的紫外一拉曼光谱比较研究Silver Nanodesert Rose as a Substrate forSurface-Enhanced Raman SpectroscopySEM image of the presented silver “desert rose” on silicon.Comparison of spectra obtained in a 10-2 M solution using (a) SERS-active silver nanostructures and ...
1 RemoteRamanAnalysisonPlanetaryMissions ToallowRamanspectroscopyatrangeof10'sofmeters.ThisNASA-fundedprojectisaimedatMarslandersorlandersonotherplanets,butalsohasterrestrialuses.2021/3/7 CHENLI 2 激光拉曼光谱基本原理 Rayleigh散射:激发虚态 h(0-)弹性碰撞;无能量交换,仅 改变方向;Raman散射:h0 非弹性碰撞...
40、n yvon hr800 raman spectroscopy (lanzhou u) detailed lay-out of a confocal hole as used in a raman microscope 4 4 应应 用用 拉曼光谱技术已在不同的工业和学术领域中得到了越来越重 要的应用,并在一些新的学科中得到了迅速的推广。 1、化学物质、化学物质 如:认定、分析、和特性测量有机物、...
后… 光损失能量,使分子振动 Information obtained from Raman spectroscopy 拉曼光谱的信息 拉曼光谱的特点和主要困难 拉曼散射信号弱(比荧光光谱平均小2-3数量级)。 激光激发强。 拉曼信号频率离激光频率很近。 激光瑞利散射比拉曼信号强1010-1014,对拉曼信号干扰很大。 拉曼光谱仪器的设计,必须能排除瑞利散射光,并...
RamanSpectroscopy 光谱分类 一.概述 原子发射光谱(AES)、原子荧光光谱(AFS 发射光谱)、X射线荧光光谱法(XFS)、分子荧光光 谱法(MFS)等 紫外-可见光法(UV-Vis)、原子吸收光谱(吸收光谱AAS)、红外观光谱(IR)、核磁共振(NMR )等 联合散射拉曼散射光谱(Raman)光谱 分子振动也可能引起分子极化率的...
Advantages of Using Raman Spectroscopy to Monitor Key Gasoline Blending Parameters - (PPT)Issues: 1. Availability of documentation; 2. Training efforts; 3. Availability of CEMS; 4. OPEX cost; 5. Safety issues; 6. Supplier Services. Solutions: 1. Standardized documentation for operation & ...
Information obtained from Raman spectroscopy 拉曼光谱的信息 Slide 7 PPT课件 characteristic Raman frequencies 拉曼频率的确认 changes in frequency of Raman peak 拉曼峰位的变化 parallel polarization of Raman peak perpendicular 拉曼偏振 width of Raman peak 拉曼峰宽 intensity of Raman peak 拉曼峰强度 composit...