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本文用气液色谱法研究某些探测分子在聚乙二醇中的比保留体积、无限稀活度系数及相互作用参数随固定液分子量变化的关系,提出一改进Martire和Purnell测定分子量的方法。
In this paper, gas-liquid chromatography was used to study the relationship between specific retention volume, infinite dilute activity coefficient and interaction parameters of some probe molecules in polyethylene glycol with the change of molecular weight of the fixative. A method to improve the determination of molecular weight by Martire and Purnell was proposed.