在紫外及可见光(190-800nm)照射下,引起分子中的电子能级跃迁,从而产生的吸收光谱,被称为紫外可见光谱(ultraviolet-visible spectra)。 | 仪器组成 | 光源:氘灯(2) (185 ~ 395nm)、钨灯(4) (350 ~ 800nm)。经平面镜(3)反射到曲面镜(1)聚焦后通过狭缝(5)到达凹面镜(8)。 单色器:由(8)反射的光到达...
ULTRAVIOLET-VISIBLE SPECTRA MEMBRANE OF NAFIONAlmeida, Selma helena deKawano, Yoshio
A light source may be used if the practiceis consistent between the materials under comparison.á857ñ ULTRAVIOLET-VISIBLE SPECTROSCOPYINTRODUCTIONUltraviolet-visible (UV-Vis) spectra are derived when the interaction between incident radiation and the electron cloud in achromophore results in an ...
第二章紫外-可见分光光度法（Ultraviolet-VisibleSpectrophotometry）紫外-可见分子吸收光谱法（Ultraviolet-VisibleMolecularAbsorptionSpectrometry）2.1分光光度分析法发展简史1729年，Bouguer首先发现溶液对光的吸收与液层厚度之间的关系。1760年，Lambert就此基本定律进行了数学运算，确定了相应的关系式。1833年，Brewster在...
内容提示: á857ñ ULTRAVIOLET-VISIBLE SPECTROSCOPYINTRODUCTIONUltraviolet-visible (UV-Vis) spectra are derived when the interaction between incident radiation and the electron cloud in achromophore results in an electronic transition involving the promotion of one or more of the outer shell or the ...
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Electronic Spectra Cr(NH3)63+ d3 Weak low energy transition Spin forbidden 2 stronger transitions Spin allowed t2g and eg transitions Lower energy to higher energy CT at higher energy Ligand to metal transition Charge transfer bands High energy absorbance Energy greater than d-d transition Electron...
Comparison of the ht Ultraviolet-Visible Spectra of the Copper(Ii) Complexes of Bidentate Schiff Base LigandsSchiff basesiminecopper complexessalicylaldiminesultraviolet-visible spectroscopyThe bis(salicylaldiminato)copper(II) complexes of the ligand series of salicylaldimines derived from the condensation...
Absorption Spectra of Organic Compounds”, New York, Plenum, 1967. (d) M. J. Kamlet, “Organic Electronic Spectral Data”, John Wiley and Sons, Vol. 1, 1946~1952, Interscience, 1960. 紫外- 可见吸收光见 据 见定某 数来 一未知物。 紫外- 可见吸收光见是配合见外光见、有机 见见和核磁...
2021. Research progress on online monitoring technologies of water quality parameters based on ultraviolet-visible spectra. Remote Sensing for Natural Resources, 33(4): 1-9. doi: 10.6046/zrzyyg.2020409 Citation: CHEN Jie, ZHANG Lifu, ZHANG Linshan, ZHANG Hongming, TONG Qingxi, . 2021. Research...