| 光谱学与光谱分析 |
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| Identification of Different Lac with Infrared Spectrum |
| DONG Qin1，QIU Jian2，HE Run-xi2，ZHANG Jian-yun2 |
1. Center of Experiment, Yunnan University, Kunming 650091, China
2. Southwest Forestry College，Kunming 650224, China |
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Abstract Fourier infrared spectrum was used to differentiate raw lac, bleached las and lac mixed with resin. The results indicate that the infrared spectra of raw lac and lac mixed with resin are similar, so the authors can differentiate them by the following items: (1) the position and the shape of absorbing peak between 3 500 and 2 500 cm-1, (2) the difference of the vibration peak at 1 700 cm-1 for CO，(3) characteristic peak between 1 200 and 1 400 cm-1, (4) the number of peaks and the change in the position of peak. But with bleached and graft copolymerization lacs the properties have been changed by chemical processing． Graft copolymerization of lac is made from methyl-acrylic acid-methy fat by using potassium permanganate as stimulant. Their main differences are： the change of vibration peak of 1 700 cm-1 for CO, a sharp small peak at 1 558 cm-1, a peak with middle strength at 681 cm-1, and spliting to two small peaks at 1 151 cm-1. The experiment shows that the method of infrared spectrum is more scientific and effective than traditional method.
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Received: 2002-11-12
Accepted: 2003-03-18
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Corresponding Authors:
DONG Qin
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| Cite this article: |
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DONG Qin,QIU Jian,HE Run-xi, et al. Identification of Different Lac with Infrared Spectrum [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(05): 585-587.
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| URL: |
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http://www.gpxygpfx.com/EN/Y2004/V24/I05/585 |
[1] Nanjing Forestry Products Industry College(南京林产工业学院编). Industrial Handbook of Forestry Products Chemistry(林产化学工业手册). Beijing: Publishing House of China Forestry(北京： 中国林业出版社)，1981. 1407.
[2] CHEN De-heng(陈德恒编著). Analysis Organic Structure(有机结构分析). Beijng: Science Press(北京： 科学出版社)，1985. 143.
[3] LI Rong-zhuan，DONG Qing-mu(李荣专，董清木). Chinese Journal of Spectroscopy Laboratory(光谱实验室), 2002, 19(3): 379.
[4] GB8145-8146-1987. The Peoples Rpublic of China Country Standard Corpus Rosin Test Method(脂松香试验方法)，Beijing: Chinese Standard(北京: 中国标准).
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