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Isolation of lignosulfonate with low polydispersity index |
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| Authors: | Xin Ping Ouyang Pan Zhang Chun Mei Tan Yong Hong Deng Dong Jie Yang Xue Qing Qiu |
| Affiliation: | School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China |
| Abstract: | Lignosulfonate with low polydispersity index of 1.178~1.210 was isolated by gel column chromatography of Sephacryl S-100 eluted with 0.2 mol/L of NaNO3 aqueous solution, whereas nearly monodisperse ligosulfonate fraction with polydispersity of 1.067 can be obtained after chromatographic separation twice. This method provides an available approach to investigate the structure and characteristics of lignosulfonate. |
| Keywords: | Lignosulfonate Sephacryl Chromatographic separation |
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