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一种新的中空纤维液流场流分离装置及其对葡聚糖保留行为的研究

Keywords: 液流场流分离,中空纤维液流场流分离,保留行为,葡聚糖

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Abstract:

中空纤维液流场流分离法对高分子和小粒子分离效果好,但目前因所使用的中空纤维均为各实验室自制且分子量阻断值不够小,使该技术的推广应用受到限制.设计了一种新的中空纤维液流场流分离装置,该装置的优越性在于其中空纤维分子量阻断值小,可以用于分离较小分子量的分子;并且中空纤维为商业购买,使得该技术的推广成为可能;该装置易于安装,操作简便.应用它获得了高分子物质葡聚糖的保留,并探讨了液流交汇时间、外场强度、流速和进样量对葡聚糖保留行为的影响.研究结果表明,给予足够的液流交汇时间,足够强的外场,葡聚糖能得到很好的保留.

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