Purification of Pyridylaminated Oligosaccharides Using 1,2-Dichloroethane Extraction

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Fluorescence derivatization of the oligosaccharides released from glycoconjugates is widely used for precise structural characterization. To ensure labeling of the oligosaccharides, a large excess of fluorescence reagents is usually added to the reaction tube. Therefore, any excess reagents and by-products of the labeling reaction should be removed by several column chromatographies, including using a cellulose cartridge or spin columns. However, these purification steps are often time-consuming, expensive, and laborious. In this study, we found that 1,2-dichloroethane extraction could effectively and easily purify pyridylaminated oligosaccharides with a high recovery rate.

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  • Analytical Sciences

    Analytical Sciences 32 (5), 487-490, 2016

    社団法人 日本分析化学会

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