THz spectra of hypoxanthine and inosine

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	THz spectra of hypoxanthine and inosine
	Ma, XJ ; Zhao, HW（赵红卫） ; Dai, B ; Liu, GF（刘桂锋）
刊名	ACTA PHYSICA SINICA
	2008
卷号	57 期号:6 页码:3429
ISSN号	1000-3290
通讯作者	Zhao, HW (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
英文摘要	Far-infrared absorption spectra and refractive indices of hypoxanthine and inosine have been measured by terahertz time-domain spectroscopy (THz-TDS) in the frequency range of 0.3-1.6 THz at room temperature. The experimental results show that there is a distinct difference between the THz absorption spectra of hypoxanthine and inosine, which suggests that THz-TDS is highly sensitive to molecular structures and the components. Hartree-Fork calculation was used to optimize and simulate the THz spectra obtained by measurement. The low frequency vibrational mode at 1.4 THz of inosine is attributed to the swing and torsion between puirine and pentose rings according to the theoretical calculation. There is a linear relationship between the absorption intensity and the concentration of sample, which is consistent with Lambert-Beer's Law. Quantitative analysis of the components of mixtures of hypoxanthine and inosine was carried out by linear regression with non-negative constraint and the relative error was less than 7%. The sources of error were also discussed.
学科主题	Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000256874600022
公开日期	2012-04-18
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/7866]
专题	上海应用物理研究所_中科院上海应用物理研究所2004-2010年
推荐引用方式 GB/T 7714	Ma, XJ,Zhao, HW,Dai, B,et al. THz spectra of hypoxanthine and inosine[J]. ACTA PHYSICA SINICA,2008,57(6):3429.
APA	Ma, XJ,Zhao, HW,Dai, B,&Liu, GF.(2008).THz spectra of hypoxanthine and inosine.ACTA PHYSICA SINICA,57(6),3429.
MLA	Ma, XJ,et al."THz spectra of hypoxanthine and inosine".ACTA PHYSICA SINICA 57.6(2008):3429.