环境光对PE塑料薄膜514nm绿色激光拉曼光谱的影响  

Influences of environmental light on the Raman spectra of PE film irradiated with a green 514 nm Laser

作　　者：刘文涵[1] 杨未[1] 吴小琼[1] 马淳安[1] 

机构地区：[1]浙江工业大学绿色化学合成技术国家重点实验室培育基地分析测试中心,浙江杭州310032

出　　处：《浙江工业大学学报》2007年第2期182-184,共3页Journal of Zhejiang University of Technology

基　　金：浙江省分析测试基金资助项目(04128)

摘　　要：考察了环境光对用514 nm绿色激光激发时的PE透明塑料薄膜拉曼光谱的影响.表明环境光自然阳光和室内荧光灯光都会对拉曼光谱产生一定的影响,但由于PE塑料本身的拉曼光谱相对较强,这两种外界环境光仅对背景本底产生了整体抬高的影响,而对拉曼光谱的峰形及分布的影响很小;为了消除外界背景或减小荧光的影响,最好还是应该在暗室或暗罩遮护中进行,以完全消除环境光的影响.The 514 nm green Laser Raman spectra influenced by environmental light has been studied in determination for transparent plastic thin film. The results show that the environment light natural sunlight and the room fluorescence light, have certain influence to the Raman spec- trum. These two external environment lights have only some influence to the background, which the whole raises, but very small to the Raman spectrum peak shape and the distribution. In order to eliminate or reduces the background or fluorescence influence, it is better to operate in the darkroom or the dark cover screening, to completely eliminate the environment light influence.

关 键 词：激光拉曼光谱 仪器条件 环境光 测定影响 透明塑料 

分 类 号：O657.37[理学—分析化学]