光纤共振喇曼光谱法探测水中超痕量生物分子  

Ultra-trace analysis of biological molecules in water by means of the resonance Raman spectra in liquid-core optical fiber

作　　者：赵永柱[1] 里佐威[1] 高淑琴[1] 任春年[1] 陆国会[1] 于英宁[2] 

机构地区：[1]吉林大学物理系,长春130023 [2]中国科学院长春应用化学研究所,长春130022

出　　处：《激光技术》2004年第5期491-493,共3页Laser Technology

基　　金：国家自然科学基金资助项目 (2 0 2 75 0 13)

摘　　要：水中微量生物分子的探测、识别和控制研究是很重要的课题。采用光纤内共振喇曼光谱法 ,可以提高喇曼光谱的强度 10 9倍。把少量 β 胡萝卜素溶于吡啶与水的混合液体 ,充入空心光纤中构成液芯光纤 ,用5 14 .5nm ,30mW激光激发 ,获得了浓度为 10 -7mol/L～ 10 -9mol/L的 β 胡萝卜素喇曼光谱。该技术为研究水中微量生物分子提供了一种新的实验方法。The study on detecting,identifying and controlling the biological molecules in water is profound and significant project.We used the means of the resonance Raman spectra in the liquid-core optical fiber,and the intensity of the Raman spectra was enhanced 10 9 times.β-carotene was dissolved in organic solution(pyridine and water),poured into a number of hollow-core capillary made up of liquid-core optical fiber.The laser wavelength is 514.5nm.The laser power is 30mW.By this means we obtained the resonance Raman spectra of β-carotene with the concentration of 10 -7 mol/L～10 -9 mol/L.This means provided an experiment technique for trace analysis of biological molecules in water.

关 键 词：液芯光纤 共振喇曼光谱 生物分子 超痕量 

分 类 号：O657.37[理学—分析化学]