化学耗氧量的快速测定法与重铬酸钾蒸馏法的对比

Comparison of rapid determination method and potassium dichromate distillation method for determination of chemical oxygen demand

比较了快速测定法与国家标准方法重铬酸钾法(GB11914-89)测定化学需氧量,结果表明快速测定法不仅节约了消解时间,而且节约了试剂,操作简单,准确度和精确度均达到国家标准方法。

The rapid determination method and potassium dichromate method （GBllg14 89 ）for determination of chemical oxygen demand was compared. The results show that the rapid determination method can not only save the digestion time, but also save reagents. The operation is simple, the accuracy and precision have reached the na- tional standard method.