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利用共振效应的喇曼光谱法的灵敏度较之普通喇曼光谱法提高百万倍.显微喇曼光谱法通过光学显微镜照射样品,只要从1μm~2的表面就可获得喇曼光谱.这两种新技术在药物分析和药物研究方面的应用范围日益扩大.千万分之一级浓度的分子振动光谱:共振喇曼光谱法可以做到无破坏地检测或鉴定浓度仅为ppm级的组分,这在酶及维生素类方面已有许多应用实例,如β-胡萝卜素,测定浓度为10~(-7)mol/L.目前,与计算机联用的光谱仪进行重复扫描,分析灵敏度还可进一步提高.选择性亚分子共振喇曼光谱:分子中有各种不同的电子转移,选择一定频率的激光来激发某给定能级,即可产生共振喇曼效应且仅呈
Raman spectroscopy using resonance effects is one million times more sensitive than conventional Raman spectroscopy Raman spectroscopy Raman spectroscopy is available as long as the sample is irradiated with an optical microscope at a surface of 1 μm to 2 μm The application of new technologies in drug analysis and drug research is expanding.Millionths of the concentration of molecular vibrational spectroscopy: Resonance Raman spectroscopy can detect or identify components of ppm concentration , Which has many applications in the field of enzymes and vitamins, such as β-carotene, the determination of the concentration of 10 ~ (-7) mol / L. At present, the computer with the spectrometer repeated scanning, the sensitivity can be further analyzed Selective Resonance Raman Spectroscopy: There are a variety of different electron transfers in a molecule. Selecting a certain frequency of laser to excite a given energy level results in a resonant Raman effect