| 光谱学与光谱分析 |
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| Study on the Peaks Linked to the Crystalline of L-LA with Variable Temperature FTIR Spectra Method |
| CHU Yan-hong1, 2，ZHANG Guo-bao2*，ZHAO Gen-suo2，YU Shou-zhi2 |
1. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, China
2. Analyses and Testing Center, Province of Henan, Zhengzhou 450002, China |
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Abstract Variable temperature FTIR spectra method was used to study the crystalline spectra of crystal compounds. In the present paper, the sample of L-LA was synthesized and characterized by FTIR, NMR and DSC. It was found that the two peaks in the range of 800-770 cm-1 changed sharply at 95 ℃ after being investigated by FTIR spectra between 15-120 ℃. When the temperature increased, these peaks remained almost unchanged, but they returned to the original state after annealing. It was deduced that these two peaks are linked to the crystalline of L-LA.
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Received: 2003-11-07
Accepted: 2004-03-22
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Corresponding Authors:
ZHANG Guo-bao
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| Cite this article: |
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CHU Yan-hong,ZHANG Guo-bao,ZHAO Gen-suo, et al. Study on the Peaks Linked to the Crystalline of L-LA with Variable Temperature FTIR Spectra Method [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(03): 384-386.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2005/V25/I03/384 |
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