聚醚砜超滤膜法纯化电泳用Fe(OH)3溶胶

Fe(OH)3溶胶的纯化是物理化学溶胶电泳实验中最大的难题,因为传统的火胶棉半透膜渗析纯化法不仅费时费力,而且成功率很低,本文将新型的膜分离技术应用于溶胶的纯化,提出了用自制的聚醚砜超滤膜纯化溶胶的方法,实验结果表明,此法不仅纯化效果好,而且省时省力,简单易行,是替代传统方法的良好方法。

Purification of Fe(OH)3 colloid with polyethersulfone ultrafiltration membrane

Purification of Fe(OH)3 colloid is a problem in the physical chemistry experiments on colloid electrophoresis because the traditional purification method is not effective.The traditional purification is carried out with semi-permeable membrane.The process being time-consuming and strenuous,the succeed rate of membrane preparation being very low are the major defects of the traditional method.In this paper,a new method is proposed in order to solve the above problem.The purification is carried out with self-prepared polyethersulfone ultrafiltration membrane,which is an application of ultrafiltration technology.The experiment results show that this new method is effective,time-saving and convenient.Therefore,the new method is an ideal alternative to the traditional one.