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Citation: JIANG Xin-Ping, CHENG Ge, WANG Shao, LIU Xiao-Mei, YU Lei, SHI Lei. Structures of Chitosan and Chitooligosaccharide and Their Adsorption toward Radionuclide Uranium[J]. Chinese Journal of Applied Chemistry, ;2010, 27(4): 462-465. doi: 10.3724/SP.J.1095.2010.90007 shu

Structures of Chitosan and Chitooligosaccharide and Their Adsorption toward Radionuclide Uranium

School of Public Health, Jilin University, Changchun 130021

Received Date: 5 April 2009
Revised Date: 6 November 2009

The deacetylations(DD) of chitosan and chitooligosaccharide(COS) were estimated by titration of acid-base method as 90.9% and 90.1%,respectively.After Sephadex chromatography purification,the degree of polymerization(DP) and DD were obtained by MALDI-FT-MS.It was found that chitosan has high an adsorption of the radionuclide uranium.Chitosan showed high adsorption of radionuclide uranium even with the presence of large amount of Cu²⁺ ions.The adsorption efficiency is above 96%.This shows that chitosan has a great potential for the renoval of both heavy metals and radionuclides.
- chitosan,
- chitooligosaccharide(COS),
- radionuclide uranium,
- adsorption property
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