1. 华东理工大学分析测试中心，上海 200237 2. School of Science and Technology, Kwansei-Gakuin University, Sanda 669-1337, Japan
The Study on Linear Relationship between Concentration and Surface-Enhanced Raman Spectroscopy (SERS) Signal of Thymine in Improved Ag Sol
ZHANG Lei1,ZHANG Yu-lan1,ZHANG Wei1,WANG Wen-ming1, DU Yi-ping1*, Yukihiro Ozaki2
1. Center of Analysis and Test, East China University of Science and Technology, Shanghai 200237，China 2. School of Science and Technology, Kwansei-Gakuin University, Sanda 669-1337, Japan
Abstract：The authors used polymer as a stable medium to protect Ag sol to get a stable signal for the unstable Ag sol. Polyacrylic acid sodium was selected as the stable medium, which had a little effect on the SERS of thymine and made the SERS signal stable for thirty days. After aborative consideration and some trials, pyridine was picked as an internal standard for the quantitative detection of thymine. A linear correlation between the concentration of thymine and the ratio of thymine signal to pyridine signal intensity was obtained over a range of 2×10-4-1×10-3 mol·L-1 with a correlation coefficient R2 of 0.975 4. The regression equation is: y=3.143x+0.348 7. The proposed method has the potential for quantitative analysis of the trace compounds having SERS effects.
Key words：Surface-enhanced Raman scattering;Thymine;Stable medium
张磊1,张玉兰1,张伟1,王文明1,杜一平1*,Yukihiro Ozaki2 . 胸腺嘧啶在改进银溶胶溶液中的表面增强拉曼散射光谱信号与浓度的定量关系[J]. 光谱学与光谱分析, 2009, 29(07): 1889-1891.
ZHANG Lei1,ZHANG Yu-lan1,ZHANG Wei1,WANG Wen-ming1, DU Yi-ping1*, Yukihiro Ozaki2 . The Study on Linear Relationship between Concentration and Surface-Enhanced Raman Spectroscopy (SERS) Signal of Thymine in Improved Ag Sol. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(07): 1889-1891.
[1] Fleischmann M, Hendra P J. Chem. Phys. Lett., 1974, 26(2): 163. [2] WANG Yu, LI Ying-sing, ZHANG Zheng-xing, et al(王玉，LI Ying-sing, 张正行, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2004, 24(11): 1376. [3] Steven E J Bell, Narayana M S Sirimuthu. J. Am. Chem. Soc., 2006, 128: 15580. [4] Edith L Torres, Winefordner J D. Anal. Chem., 1987, 59: 1626. [5] GAO Shu-yan, ZHANG Shu-xia, YANG Shu-xia, et al(高书燕, 张树霞, 杨恕霞, 等). Chemistry Bulletin(化学通报), 2007, 70(12): 908. [6] WANG Mei, YAO Jian-lin, GU Ren-ao, et al(王梅，姚建林, 顾仁敖). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2007, 27(6): 1136. [7] Yu Daguang, Lin Wenching, Lin Chien Hong, et al. Materials Chemistry and Physics, 2007, 101: 93. [8] QIAO Jun-lian, ZHENG Guang-hong, LI Feng-ting(乔俊莲, 郑广宏, 李风亭, 等). Chemistry Bulletin(化学通报), 2006, 69(6): 908. [9] Katrin Kneipp, Harald Kneipp. Irving Itzkan, et al. Chem. Rev., 1999, 99: 2957. [10] Steven E J Bell, Stephen J Spence. Analyst, 2001, 126: 1. [11] Steven E J Bell, Narayana M S Sirimuthu. Analyst, 2004, 129: 1032. [12] Lee P C, Meisel D. J. Phys. Chem., 1982, 86: 3391. [13] Bernhard Schrader. Raman/Infrared Altas of Organic Compounds, VCH Verlagsgesellschaft mbH, D-6940 Weinheim (Federal Republic of Germany), 1989. [14] Shang Zhiguo, Ting Dor Ngi, Wong Yee Ting, et al. J. Molecular Structure, 2007, 826: 64. [15] Laura Rivas, Sanchez-Cortes, Jose V Garcia-Ramos. Phys. Chem. Chem. Phys., 2002, 4: 1943.
