摘要
文章通过优化催化剂和回流时间,改进COD测定国标方法。试验研究表明,以Ag2SO4和CuSO4按1:1混合替代Ag2SO4做催化剂,加热回流时间从120min缩短到45min是可行的,同时可节约分析成本36%。
From optimizing catalyst and reflux time,the national standard measurement of chemical oxygen demand （COD）is improved.The experimental research shows the improvement is feasible when the mixture which composed Ag2SO4 and CuSO4 with equal quality is used as a catalyst instead of Ag2SO4 and the reflux time is shorten from 120 min to 45 min.At the same time,the analytical cost can save 36%.
出处
《企业技术开发》
2010年第8期52-53,共2页
Technological Development of Enterprise
