QQ客服 官方微博 反馈留言

	Study on the Eucalyptus and Poplar by generalized two-dimensional infrared correlation spectroscopy
	Huang An-min ; Zhou Qun ; Fei Ben-hua ; Sun Su-qin
	2010-05-06 ; 2010-05-06
关键词	two-dimensional correlation analysis Fourier infrared spectroscopy Eucalyptus Poplar THERMAL PERTURBATION IDENTIFICATION DISCRIMINATION STANDARD IR Spectroscopy
中文摘要	Poplar and Eucalyptus were identified fast by Fourier transform infrared spectroscopy (FTIR) combined with two-dimensional correlation spectroscopy (2D) in the present paper. The two kinds of wood were similar to each other in one-dimensional IR spectra but quite different in 2D FTIR spectra. In the range between 800 and 1 500 cm(-1), they are similar and three strong auto-peaks were aroused around 1221, 954 and 879 cm(-1) in synchronous spectrum and four weak auto-peaks were aroused around 1470, 1 150, 1 105 and 1008 cm(-1), respectively. In the range between 1500 and 1800 cm(-1), one strong auto-peak appeared with Poplar around 1 665 cm(-1) and one weak auto-peak appeared around 1 600 cm(-1) in synchronous spectrum. They fromed one pair of cross-peaks, whereas three auto-peaks not only at 1 650 cm-1 but also at 1 725 and 1600 cm-1 appeared with Eucalyptus and they became one 3 X 3 peak cluster. In addition, Eucalyptus has two weak auto-peaks at 1580, 1 510 cm-1 and four negative cross-peaks at 0 725 and 1 580 cm-1), 0 650 and 1 580 cm-1), (1 600 and 1 580 cm-1) and 0 510 and 1 580 cm-1) and three positive cross-peaks at (1 725 and 1 510 cm(-1)), 0 650 and 1 510 cm-') and Q 600 and 1 510 cm-'), respectively, which suggests that corresponding absorbance bands of Eucalyptus are more susceptive to the thermal perturbation than that of Poplar. The difference of 2D correlation between Eucalyptus and Poplar was obvious. The results proved that 2D correlation spectra could enhance the resolution of infrared spectra and increase the capacity of identification, which make it a powerful, rapid and new approach to identifying Eucalyptus and Poplar.
语种	英语 ; 英语
出版者	BEIJING UNIV PRESS ; BEIJING ; HAIDIAN-QU, BEIJING 100871, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/13372]
专题	清华大学
推荐引用方式 GB/T 7714	Huang An-min,Zhou Qun,Fei Ben-hua,et al. Study on the Eucalyptus and Poplar by generalized two-dimensional infrared correlation spectroscopy[J],2010, 2010.
APA	Huang An-min,Zhou Qun,Fei Ben-hua,&Sun Su-qin.(2010).Study on the Eucalyptus and Poplar by generalized two-dimensional infrared correlation spectroscopy..
MLA	Huang An-min,et al."Study on the Eucalyptus and Poplar by generalized two-dimensional infrared correlation spectroscopy".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。