摘要
利用HACH公司的45600型COD反应器,用自制药剂替代HACH的专用药剂,能满足日常废水监测分析的COD快速测定.该方法测定COD的稳定吸收波长为600nm,平行样相对标准偏差小于等于8.5%(n=5),加标回收率为95%～106%,与标准方法相比无明显差异.
The daily quick determination of COD in wastewater can be achieved using HACH 45600 COD detector with self-made reagents instead of the special reagents of HACH.With the method,the stable absorption wavelength to determine COD is 600 nm,the relative standard deviation of duplicate samples is less than 8.5%(n=5),and the recovery rate of marked COD are 95%—106%,and there is no obvious difference compared with the standard methods.
出处
《化工环保》
CAS
CSCD
北大核心
2005年第3期243-246,共4页
Environmental Protection of Chemical Industry
关键词
化学需氧量
快速测定
分光光度法
chemical oxygen demand
quick determination
spectrophotometry
