拉曼光谱
茶氨酸
共焦
分析化学(期刊)
化学
材料科学
光学
色谱法
物理
绿茶
食品科学
作者
Yongjian Chen,Rong Chen,Yongzeng Li,Zufang Huang,Jie-Si Chen,Duo Lin,Gangqin Xi
出处
期刊:Spectroscopy and Spectral Analysis
日期:2011-11-01
卷期号:31 (11): 2961-4
摘要
The L-theanine was tested using confocal Raman microscopy. Obvious Raman bands were showed in the range of 250 -1 700 and 2 800-3 000 cm(-1). The Raman bands were assigned with a preliminary analysis and the characteristic vibrational modes were gained in different range of wave numbers. Eight strong Raman bands were observed in the Raman spectra at 321, 900, 938, 1 153, 1 312, 1 358, 1 454 and 1 647 cm(-1), respectively. They are the characteristic Raman bands of L-theanine. The results showed that Raman spectroscopy might be a new kind of precise, direct and fast detecting method for theanine.
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