| 光谱学与光谱分析 |
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| A Comparative Study on the Resolution of Second Derivative and Fourier Self-Deconvolution |
| WANG Dong-mei, WANG Hai-shui*，ZENG Guang-fu, XI Shi-quan |
| Changchun Institute of Applied Chemistry，Chinese Academy of Sciences，Changchun 130022，China |
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Abstract Infrared spectra of 2-alkyl-7,7,8,8-tetracyanoquinodimethane(C12H25TCNQ，C15H31TCNQ，C18H37TCNQ) were measured with the resolution of 1 and 4 cm-1. In order to identify the peak number correctly in the CH2 stretching region, second derivative and Fourier self-deconvolution were applied to the infrared spectra，respectively. The overlapping bands in the CH2 stretching region could be identified when the infrared spectra，which were measured with the resolution of 4 cm-1，were dealt with by Fourier self-deconvolution. However, the bands overlapped in the CH2 symmetric stretching region could not be observed when these infrared spectra were dealt with by second derivative. The above results reveal that Fourier self-deconvolution method is more powerful than second derivative in identifying bands that are involved in an overlapping band feature.
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Received: 2002-10-08
Accepted: 2003-02-20
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Corresponding Authors:
WANG Hai-shui
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| Cite this article: |
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WANG Dong-mei,WANG Hai-shui,ZENG Guang-fu, et al. A Comparative Study on the Resolution of Second Derivative and Fourier Self-Deconvolution [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(02): 152-154.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I02/152 |
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