| 激光光源条件对谷氨酸钠拉曼光谱的影响 |
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| 引用本文： | 刘文涵,张丹,郑建珍,吴小琼,李祖光,马淳安.激光光源条件对谷氨酸钠拉曼光谱的影响[J].光谱学与光谱分析,2006,26(5):865-868. |
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| 作者姓名： | 刘文涵 张丹 郑建珍 吴小琼 李祖光 马淳安 |
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| 作者单位： | 浙江工业大学化材学院、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 |
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| 摘 要： | 采用多种激光和不同功率等,对谷氨酸钠晶体进行了激光拉曼光谱的影响研究.结果表明不同波长和功率的光源,对测定存在一定的影响,谱峰位移在6 cm-1以内.紫外激光由于光能量较大对样品有一定的破坏作用,造成拉曼光谱的减弱和泯灭,需采用光路衰减.拉曼谱峰的响应与光源的功率有着很好的线性关系,其相关系数r≥0.999.首次提出单位光功率所产生的拉曼光强与所用的波长有关,与所用的光功率无关.
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| 关 键 词： | 拉曼光谱 仪器条件 谷氨酸钠 测定影响 |
| 文章编号： | 1000-0593（2006）05-0865-04 |
| 收稿时间： | 2004-12-31 |
| 修稿时间： | 2005-05-18 |
Influence of Different Light Source on the Laser Raman Spectra in Determination of Sodium Glutamic Acid |
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| LIU Wen-han,ZHANG Dan,ZHENG Jian-zhen,WU Xiao-qiong,LI Zu-guang,MA Chun-an.Influence of Different Light Source on the Laser Raman Spectra in Determination of Sodium Glutamic Acid[J].Spectroscopy and Spectral Analysis,2006,26(5):865-868. |
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| Authors: | LIU Wen-han ZHANG Dan ZHENG Jian-zhen WU Xiao-qiong LI Zu-guang MA Chun-an |
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| Institution: | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310032, China |
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| Abstract: | The influences of different laser source and different light power on laser Raman spectra were studied for the sodium glutamic acid. The results show that some influences existed using different wavelength and power of light source the peak shifting 6cm^-1. As UV laser has great light power, the samples were destroyed, making the Raman spectra-reduce or disappear. The attenuation of light was needed. The linear relation existed between the Raman intensity and the power of laser light source, and the correlation coefficient was more then 0. 999. The Raman intensity per light power unit was related to the wavelength, and was not related to the power of laser source. |
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| Keywords: | Laser Raman spectra Instrumentation condition Sodium glutamic acid Determination influences |
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