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介绍了一种测定漂白硫酸盐浆中羧基含量的方法——自动电势滴定法,并将所得结果与用TAPPI(T237 om-93)标准方法测定的结果进行比较。结果表明,2种方法测定结果的相关性较好。自动电势滴定法因操作简单、分析时间短而引人注目,可用于工厂内大量样品的质量控制。
A method for the determination of the content of carboxyl groups in bleached kraft pulp is described by the automatic potentiometric method and the results obtained are compared with those obtained by the standard method of TAPPI (T237 om-93). The results show that the correlation between the two methods is good. Automated potentiometric titration is attractive due to its simplicity of operation and short analysis time, which can be used for quality control of a large number of samples in the factory.