Identification of Genistein and Biochanin A by THz (far-infrared) vibrational spectra.
Identification of Genistein and Biochanin A by THz (far-infrared) vibrational spectra.
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DOI：
10.1016/j.jpba.2011.12.013
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发表时间：
2012-03
影响因子：
3.4
通讯作者：
Yuping Yang;S. S. Harsha-S.;Alisha J. Shutler;D. Grischkowsky
中科院分区：
文献类型：
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作者：
Yuping Yang;S. S. Harsha-S.;Alisha J. Shutler;D. Grischkowsky
首次报道了蒙药阿吉中主要成分染料木黄酮和鹰嘴豆素A在0.5-4.5THz（16.7- 150 cm-1）范围内的温度依赖振动光谱。在295 ~ 77 K温度范围内，利用THz-TDS测量了染料木黄酮和鹰嘴豆芽素A的12个高分辨光谱特征和13个高分辨光谱特征，并显示出较强的线宽变窄和频率蓝移。这种窄谱线太赫兹指纹谱为这些中药的鉴别提供了一种快速、无损、可靠的方法。
The temperature dependent vibrational spectra of Genistein and Biochanin A, major components in Mongolian medicines Agi, in the range of 0.5–4.5THz (16.7–150cm−1) are presented for the first time. Over the temperature range from 295 to 77K, 12 highly resolved spectral features for the Genistein and 13 features for Biochanin A were measured by THz-TDS and display strong linewidth narrowing and frequency blue-shift with cooling. Such narrow-line THz fingerprint spectra provide a rapid, nondestructive and reliable method for the identification of these Chinese traditional medicines.