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| Nd：YAG1064nm激发核黄素分子的表面增强拉曼光谱研究 | |
| 引用本文： | 董庆祥 胡凤霞. Nd：YAG1064nm激发核黄素分子的表面增强拉曼光谱研究[J]. 光谱学与光谱分析, 1999, 19(6): 811-813 |
| 作者姓名： | 董庆祥 胡凤霞 |
| 作者单位： | 北京市电子科技学院基础部 |
| 摘 要： | 本采用Ｎｄ：ＹＡＧ１０６４ｎｍ激光器作为发光源并改进银胶制备方法获得了核黄素的工外表面增强拉曼光谱（ＮＩＲ－ＳＥＲＳ）。发现少量的氢氧化钠可提高核黄素的ＮＩＲ－ＳＥＲＳ增强因子，其检测限可达３．２×１０＾－１０ｍｏｌ·Ｌ＾－１。证实核黄素在近红外区比可见区有更强的增强因子。 |
| 关 键 词： | 核黄素 NIR SERS 银溶胶 |
Surface Enhanced Raman Spectroscopy of Riboflavin in Silver Colloids Using 1 064 nm Excitation |
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| Q Dong,F Hu. Surface Enhanced Raman Spectroscopy of Riboflavin in Silver Colloids Using 1 064 nm Excitation[J]. Spectroscopy and Spectral Analysis, 1999, 19(6): 811-813 | |
| Authors: | Q Dong F Hu |
| Affiliation: | Beijing Electronics Science and Technology College, 100070 Beijing. |
| Abstract: | Surface-enhanced Raman spectra (SERS) of riboflavin in silver colloids, using near-infrared (NIR) laser operating at 1 064 nm wavelength, were obtained. The enhancement factor was further increased by improving the preparation of silver colloid and with the addition of a small amount of NaOH. The detection limit was lower than 3.2 x 10(-10) mol x L(-1). It is concluded that the larger and aggregated silver particles were more efficient for the electromagnetic enhancement of NIR-SERS. Flavin ring was absorbed on the colloidal silver methal surface, standing on oxygens of C(20)=O) and C(4)=O. |
| Keywords: | Riboflavin NIR SERS Silver colloid |
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