文献类型：期刊文献

英文题名：Quantitative analysis of thymine with surface-enhanced Raman spectroscopy and partial least squares (PLS) regression

作者：Zhang, Lei[1,2];Li, Qingqing[1,2];Tao, Wei[1,2];Yu, Bohao[1,2];Du, Yiping[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Res Ctr Anal Test, Shanghai 200237, Peoples R China

年份：2010

卷号：398

期号：4

起止页码：1827

外文期刊名：ANALYTICAL AND BIOANALYTICAL CHEMISTRY

收录：;EI(收录号：20104213297486);WOS:【SCI-EXPANDED(收录号:WOS:000282090000028)】；

基金：This work was supported by the National Natural Science Foundation of China (20975039).

语种：英文

外文关键词：SERS; Thymine; Stable medium; Polyacrylic acid sodium

摘要：Silver sol surface-enhanced Raman spectroscopy (SERS) was considered as a technique in the quantitative analysis of low-concentration thymine. Because of the poor stability and reproducibility of SERS signal, a polymer of polyacrylic acid sodium was selected as a stable medium to add into silver sol in order to obtain a surface-enhanced Raman spectroscopy signal. Assignments of Raman shift for solid thymine, SERS of thymine, and SERS of thymine containing stable medium were given. The comparison of Raman peaks between them showed that the addition of stable medium had a little influence on the SERS of thymine and is suitable for the quantitative analysis of low-concentration thymine.