Internal standard in surface-enhanced Raman spectroscopy

被引:68
作者
Lorén, A [1 ]
Engelbrektsson, J [1 ]
Eliasson, C [1 ]
Josefson, M [1 ]
Abrahamsson, J [1 ]
Johansson, M [1 ]
Abrahamsson, K [1 ]
机构
[1] Chalmers Univ Technol, Dept Chem & Biosci, SE-41296 Gothenburg, Sweden
关键词
D O I
10.1021/ac0491298
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A method is presented for the use of SAM layers as internal standards for calibration in surface-enhanced Raman spectroscopy. Three cyano-containing compounds were attached to gold colloids via a metal-sulfur bond and evaluated for spectral stability and normalization capacity. The results show that the analyte, rhodamine 6G, and the internal standard signal enhancement covaried, and it was possible to quantify the analyte with PLS. The fact that the enhancing substrate was chaotic assemblies with large variation in signal enhancement shows the versatility of this method.
引用
收藏
页码:7391 / 7395
页数:5
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