紫外吸收光谱分析UVPPT课件2.3.1 概述 紫外-可见吸收光谱(Ultraviolet and Visible Spectroscopy, UV-VIS)统称为电 子光谱。 紫外-可见吸收光谱法是利用某些物质的分子吸 收200～800nm光谱区的辐射来进行分析测定的 方法。这种分子吸收光谱产生于价电子和分子轨道 上的电子在电子能级间的跃迁,广泛用于有机和无 机...
紫外-可见吸收光谱 Ultraviolet visible Spectroscopy (UV –VIS)定义、基本原理和应用;紫外-可见吸收光谱 UV-VIS ;§1 定义 物质吸收了外来辐射的能量,分子中的电子从低能级跃迁到较高能级。同时产生分子的振动与转动。; ; ; ;§ 2 吸光光度法简介;§ 2.1 光与吸收光谱一、光的两象性 光是电磁波的一种,...
An Introduction to Infrared and UV-Visible Spectroscopy.ppt(PPT-45) 下载文档 收藏 打印 转格式 41阅读文档大小:1.62M45页4dddc75b上传于2015-06-07格式:PPT 人工智能基础(第2版) x2d;高济 x2d;ai x2d;4 x2d;本 热度: 安妮老师--魅力女性两天课程(课纲)590 ...
紫外可见光谱分析1UV-Vis讲课教案.ppt,紫外可见光谱(UV-Vis) Ultravoilet Visible Spectroscopy;紫外光谱 UltraVoilet Spectroscopy;真空紫外区——波长范围在200nm以下的区域。 真空紫外区对普通有机物的结构分析的用处不大。 普通紫外区——波长范围在200nm-400nm之间的
infraredspectroscopy可见光visibleintroduction红外 系统标签: infraredspectroscopy可见光visibleintroduction红外 AnIntroductiontoInfraredandUV-VisibleSpectroscopy LEARNINGOBJECTIVES Describetheprincipalregionsoftheelectromagneticspectrum. Describetheprinciplesofinfraredspectroscopy. DescribetheprinciplesofUV-Visspectroscopy. Describe...
UV-Visible Spectroscopy：紫外-可见光谱 Electronic excitation LUMO h ν spectroscopy:Photon absorption promotes an electron HOMO promotes an electron from its ground state to an excited state.λmax = 217 nm λ(nm)Electronic excitation LUMO h ν spectroscopy:Photon absorption promotes an electron HOMO ...
2.1BasicprinciplesofUV-vis •Ultraviolet-visiblespectroscopycorrespondstoexcitationsofoutershellelectronbetweentheenergylevelsthatcorrespondtothemolecularorbitalofthesystems.•ThebandspectrumofmoleculeduetovibrationalandrotationallevelsComparing:Atomicspectrum 2.2Molecularorbitalsandelectronictransition •Whiletwoatomsform...
Ultraviolet-Visible (UV-Vis) spectroscopy is a versatile and powerful analytical method, which allows to investigate a wide variety of catalysts in both the liquid-phase and solid-state and their interfaces at elevated temperatures and pressures. In the case of solid catalysts, they can be ...
UV–Visible SpectroscopyThis article has no abstract.doi:10.1002/9781119951438.eibd0805A V EbsworthD W H RankinS Cradock\tAmerican Cancer Society
波谱分析课件 chapter 2 UVvis.ppt,Chapter 2 Ultraviolet and Visible Absorption Spectroscopy (UV-Vis) At room temperature, most of the atoms, molecules and electrons are in the lowest energy orbital called ground state.? The electron of atom (molecule) at