SIZE EXCLUSION CHROMATOGRAPHIC COLUMN PACKED WITH REGENERATED CELLULOSE GELS*

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SIZE EXCLUSION CHROMATOGRAPHIC COLUMN PACKED WITH REGENERATED CELLULOSE GELS*

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- SIZE EXCLUSION CHROMATOGRAPHIC COLUMN PACKED WITH REGENERATED CELLULOSE GELS*
- Vol. 19, Issue 4, Pages: 415-419(2001)
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- Published：20 August 2001
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SIZE EXCLUSION CHROMATOGRAPHIC COLUMN PACKED WITH REGENERATED CELLULOSE GELS*[J]. 2001, 19(4): 415-419.
DOI：

SIZE EXCLUSION CHROMATOGRAPHIC COLUMN PACKED WITH REGENERATED CELLULOSE GELS*[J]. 2001, 19(4): 415-419. DOI：

摘要

Microporous regenerated cellulose gel particles were prepared by mixing cellulose cuoxam with silk fibroin aspore former

and the mean pore size and pore volume of the pallicles were 525 nm and 7.27 mL g-1

respectively. Apreparative size-exclusion chromatography (SEC) column (550 mm×20 mm) packed with the cellulose gel particles wasused for the fractionation of two polysaccharides Dextran 07 (Mw = 7.14×104

d= 1.7) and Dextran 50(Mw = 50.5×104

d = 3.8) in water phase. The fractionation range of the stationary phase covered Mw from 3×103 to 1.1×106.The daily throughput was 2.9 g for Dextran 07(D07) and 4.3 g for Dextran 50(D50) with a flow-rate of 1.5 mL min-1.The fractions obtained by using the SEC were analyzed by an analytical SEC combined with laser light scattering(LLS)

and the polydispersity indices of fractions for Dextran 07 and Dextran 50 were determined to be 1.34-1.57 and 4.53-3.36

respectively.The preparative SEC is a simple

rapid

and suitable means not only for the fractionation of polysaccharides in water but also for other polymers in organic solvents.

Abstract

Microporous regenerated cellulose gel particles were prepared by mixing cellulose cuoxam with silk fibroin aspore former

and the mean pore size and pore volume of the pallicles were 525 nm and 7.27 mL g-1

d= 1.7) and Dextran 50(Mw = 50.5×104

and the polydispersity indices of fractions for Dextran 07 and Dextran 50 were determined to be 1.34-1.57 and 4.53-3.36

respectively.The preparative SEC is a simple

rapid

and suitable means not only for the fractionation of polysaccharides in water but also for other polymers in organic solvents.

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