| 光谱学与光谱分析 |
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| Decoloring and Spectral Properties Analysis of Innoxious Ultraviolet |
| FANG Yi-wen1, NI Wen-xiu1, HUANG Chong2, XUE Liang1, YU Lin1 |
1. Department of Chemistry, Shantou University, Shantou 515063, China
2. Department of Physics, Shantou University, Shantou 515063, China |
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Abstract The ultraviolet absorbent extracted from mango leaves, was discolored by some decoloring agent. Then the spectral properties of the discolored ultraviolet absorbents were analyzed. The discolored method of ultraviolet absorbent was studied by comparing one with the others. The results showed that the discoloring effect was satisfactory by using active carbon, H2O2, citric acid, and oxalic acid as decoloring agent. Specially, when oxalic acid was used as decoloring agent, the color of the production was slight, the rate of production was high, and the absorption effect of ultraviolet ray was well. When the concentration of the ultraviolet absorbent solution is 0.5%(w/w), the ultraviolet ray transmission was smaller than 0.3% in 200-370 nm, and it increased slightly from 370 nm. There was a maximum value at 400 nm, approaching 12%.
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Received: 2005-04-06
Accepted: 2005-07-18
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Corresponding Authors:
FANG Yi-wen
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| Cite this article: |
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FANG Yi-wen,NI Wen-xiu,HUANG Chong, et al. Decoloring and Spectral Properties Analysis of Innoxious Ultraviolet[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(07): 1303-1305.
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| URL: |
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https://www.gpxygpfx.com/EN/Y2006/V26/I07/1303 |
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