Citation: Xin Ping Ouyang, Pan Zhang, Chun Mei Tan, Yong Hong Deng, Dong Jie Yang, Xue Qing Qiu. Isolation of lignosulfonate with low polydispersity index[J]. Chinese Chemical Letters, ;2010, 21(12): 1479-1481. doi: 10.1016/j.cclet.2010.06.032 shu

Isolation of lignosulfonate with low polydispersity index

School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

Received Date: 30 March 2010

Fund Project: This work is financially supported by the National Natural Science Fund of China (No.20876064),the Guangdong Provincial Natural Science Fund (No.9151064101000082) and the Guangdong Provincial International Cooperation Fund (No.2008B05010006).

Lignosulfonate with low polydispersity index of 1.178-1.210 was isolated by gel column chromatography of Sephacryl S-100eluted with 0.2 mol/L of NaNO₃ aqueous solution, whereas nearly monodisperse ligosulfonate fraction with polydispersity of 1.067can be obtained after chromatographic separation twice. This method provides an available approach to investigate the structure and characteristics of lignosulfonate.
- Lignosulfonate,
- Sephacryl,
- Chromatographic separation
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