参考:
A New Method for Removal of Hydrogen Peroxide Interference in the Analysis of Chemical Oxygen Demand
Environ. Sci. Technol. 2012, 46, 2291−2298作者: 千里之外 时间: 2013-7-13 22:18
可以看一下这篇文章:Sulfate radical-advanced oxidation process (SR-AOP) for simultaneous removal of refractory organic contaminants and ammonia in landfill leachate。这里面讲到反应结束后,要测过硫酸盐是否反应完全,如果反应完全了,再测COD。Persulfate was qualitatively measured as follows once every day to determine whether all the persulfate was decomposed.One half milliliter of uniform sample was collected andmixed with 20 mL NaI and starch solution. If the solution became blue, persulfate still remained; otherwise, persulfate was
completely decomposed. Once persulfate was depleted, the
residual samples in the reactors will be collected for COD and
ammonia analysis.作者: 誓言@谎言 时间: 2013-7-14 11:23