琼脂糖
分散性
摩尔质量分布
大小排阻色谱法
分子质量
多糖
化学
凝胶渗透色谱法
色谱法
聚合物
生物化学
高分子化学
有机化学
酶
作者
Cyrille Rochas,Marc Lahaye
标识
DOI:10.1016/0144-8617(89)90068-4
摘要
A procedure to determine the absolute weight-average molecular weight and molecular weight distribution of agarose and agarose-type polysaccharides by aqueous size-exclusion chromatography coupled with low-angle laser light scattering is described. The molecular weights of the majority of the commercial samples investigated were between 80 000 and 140 000 with a polydispersity lower than 1·7. In contrast, most of the laboratory-extracted agarose-type polysaccharides had lower molecular weights.
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