利用交流阻抗谱测定技术，建立一种离子交换膜导电性能评价方法；

Using AC impedance measurement, this study proposed a method to investigate ion exchange membrane area resistances;

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研究了一种新的黄腐酸提纯工艺方法，采用异相离子交换膜进行黄腐酸的电渗析提纯，黄腐酸经电渗析后的纯度可达95% ，收率为88.47% ；

Proposed is a process for purification of yellow humic acid by heterophase cation-exchange membrane. After electrophoresis, its purity was up to 95% and recovery, 88.47%.

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