| 氯化亚锡抑制吡啶分子表面增强拉曼光谱测定中的碳化现象 |
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| 引用本文： | 褚幼萍,陈述,郑菊芳,李则林.氯化亚锡抑制吡啶分子表面增强拉曼光谱测定中的碳化现象[J].光谱学与光谱分析,2009,29(7):1892-1895. |
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| 作者姓名： | 褚幼萍 陈述 郑菊芳 李则林 |
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| 作者单位： | 1. 浙江师范大学物理化学研究所,浙江省固体表面反应化学重点实验室,浙江,金华,321004
2. 湖南师范大学化学化工学院,湖南,长沙,410081 |
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| 摘 要： | 碳化是表面增强拉曼光谱中难以避免的干扰现象，特别是对于活性有机和生物分子的检测。作为一种最常用的探针分子，吡啶同样也存在碳化的问题。然而，作者发现通过引入SnCl2,可以有效地抑制表面增强拉曼光谱测定中吡啶分子的碳化现象。该方法操作简单，所引入的SnCl2只在谱图低波段处出现少而易区分的特征峰，不干扰被测样品的光谱分析。有别于文献中所采用的真空、惰性气氛、低温和低激光功率等物理方法，此法是解决碳化问题的一种崭新的化学方法，可望应用于其他易碳化的有机和生物分子的表面增强拉曼光谱检测。
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| 关 键 词： | 表面增强拉曼光谱 碳化 吡啶 SnCl2 |
| 收稿时间： | 2008/5/28 |
Restraining Pyridine from Laser Carbonization by SnCl_2 in the SERS Measurements |
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| CHU You-ping,CHEN Shu,ZHENG Ju-fang,LI Ze-lin.Restraining Pyridine from Laser Carbonization by SnCl_2 in the SERS Measurements[J].Spectroscopy and Spectral Analysis,2009,29(7):1892-1895. |
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| Authors: | CHU You-ping CHEN Shu ZHENG Ju-fang LI Ze-lin |
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| Institution: | CHU You-ping1,CHEN Shu2,ZHENG Ju-fang1,LI Ze-lin2 1.Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces,Institute of Physical Chemistry,Zhejiang Normal University,Jinhua 321004,China2.College of Chemistry , Chemical Engineering,Hunan Normal University,Changsha 410081,China |
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| Abstract: | Laser carbonization is an inherent problem frequently encountered in the measurements of surface-enhanced Raman scattering(SERS),especially for the reactive molecules.Pyridine(Py) is one of such examples though it is a common molecule as probe in the SERS studies.The introduction of SnCl2,which has few Raman peaks at low frequency,effectively restrains the pyridine from carbonization. The findings here provide a new convenient chemical way to improve the routine SERS analysis of reactive organic/bio-molecul... |
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| Keywords: | SnCl2 |
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