低浓度样品拉曼光谱的实验研究  

Experimental Study on Low Concentration Sample in Raman Spectrometry

作　　者：里佐威[1] 高淑琴[2] 孙成林[1] 张玮[1] 

机构地区：[1]吉林大学物理系,长春130023 [2]吉林大学南岭校区物理系

出　　处：《分析化学》2000年第12期1512-1515,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金资助课题

摘　　要：在液芯光纤内产生共振拉曼效应，可以提高拉曼光谱强度１０９倍。测定了 １０－１０～１０－５ ｍｏｌ／Ｌ浓度样品的拉曼光谱。实验结果表明，β－胡罗卜素在ＣＳ２中 １５２０ ｃｍ－１拉曼线的强度（散射系数）、频移、线宽随浓度降低而发生变化。The resonance Raman effect is produced in liquid core optical fiber. It can enhance the Raman spectral intensity 109 times. In our experiment, the Raman spectra of samples with low concentration (10-10 - 10-15 mol/L) have been obtained and we found that the scattering coefficient, the frequency shift and the line width of 1520 cm-1 line of β- change when the concentration changes.

关 键 词：液芯光纤 共振拉曼光谱 β-胡罗卜素 

分 类 号：O657.3[理学—分析化学]