光谱学与光谱分析 |
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Terahertz Spectroscopic Investigation of Elaidic Acid |
KANG Xu-sheng1,2, ZHANG Guang-xin1*, CHEN Xi-ai1,3, HUANG Ping-jie1, HOU Di-bo1, ZHOU Ze-kui1 |
1. Department of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China 2. Zhejiang University City College, Hangzhou 310015, China 3. China Jiliang University, Hangzhou 310018, China |
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Abstract The optical properties of elaidic acid in the THz band were investigated by using THz time-domain spectroscopy (THZ-TDS). The absorption and refractive index spectra in the frequency range from 0.5 to 2.5 THz were obtained at room temperature under nitrogen atmosphere, and the results show that elaidic acid had some characteristic absorption peaks, and the average refractive index of the sample was 1.43. The structure and vibrational frequencies of elaidic acid molecule in the THz range were simulated by the B3LYP algorithm of density functional theory, and the THz characteristic absorption peaks of elaidic acid molecule were identified by using Gaussian View software. The results show that the experimental and theoretical results agree in general, and the observed absorption peaks in the THz range were mainly caused by the intramolecular and intermolecular vibrations jointly. At the same time, the fingerprint spectra of elaidic acid in the THz band verify that the time-domain terahertz spectroscopy can be used to detect oleic acid, and this study provides a new experimental method for the detection of trans fatty acids in food.
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Received: 2010-11-29
Accepted: 2011-03-15
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Corresponding Authors:
ZHANG Guang-xin
E-mail: gxzhang@zju.edu.cn
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[1] JI Te, ZHAO Hong-wei, ZHANG Zeng-yan, et al(吉 特,赵红卫,张增艳,等). Acta Phys. -Chim. Sin.(物理化学学报), 2006, 22(9): 1159. [2] WANG Feng-xia, ZHANG Zhuo-yong, ZHANG Cun-lin(王凤霞,张卓勇,张存林). Chinese Journal of Analytical Chemistry(分析化学),2006, 34(4): 576. [3] Hakey P M, Allis D G, Hudson M R, et al. IEEE Sensors Journal, 2010, 10(3): 478. [4] Hooper J, Mitchell E, Konek C, et al. Chemical Physics Letters, 2009, 467(4-6): 309. [5] Li X W, Globus T, Gelmont B, et al. Journal of Physical Chemistry, 2008, 112(47): 12090. [6] ZHU Li, ZHANG Guang-xin, CAO Bing-hua, et al(朱 莉,张光新,曹丙花,等). Chinese Journal of Sensors and Actuators(传感技术学报), 2008, 21(1): 83. [7] SONG Li-hua, LU Xiao-hua, DU Han-xiang, et al(宋立华, 陆小花, 杜韩香, 等). Food Science(食品科学), 2008, 29(12): 511. [8] WEI Li-fang, LI Pei-wu, XIE Li-hua, et al(魏丽芳, 李培武, 谢立华, 等). Science and Technology of Food Industry(食品工业科技), 2008, 29(2): 294. [9] SHAO Jing-dong, LIU Yi-jun(邵景东, 刘一军). Chin. J. Public Health(中国公共卫生),2006, 22(3): 366. [10] CAO Bing-hua, ZHANG Guang-xin, ZHOU Ze-kui(曹丙花, 张光新, 周泽魁). Chinese Journal of Analytical Chemistry(分析化学),2008, 36(5): 623. [11] Hua Y F, Zhang H J. IEEE Transactions on Microwave Theory and Techniques,2010, 58(7): 2064. [12] LIU Nan, XU Kai-jun, ZHOU Jian-ping, et al(刘 囡, 徐开俊, 周建平, 等). Progress in Pharmaceuticaltical Sciences(药学进展),2008, 32(9): 398. [13] WU Feng-ping, LIU Yan-yan, CHEN Yan-jiang(武凤萍, 刘艳艳, 陈艳江). Laser & Infrared(激光与红外), 2008, 38(11): 1094, 1105.
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