摘要
化学耗氧量 ρ (COD)的大小表征了水体受还原性物质污染的程度 ,COD是我国环境监测的重要项目之一。传统的COD测定方法是重铬酸钾冷凝回流法 ,该方法准确度较好 ,但回流时间长 ,并要求有加热和冷凝回流装置。微波消解法所用试剂和冷凝回流法一样 ,测定COD准确度也较好 ,同时耗时少 ,操作简单 ,是一种值得推广的好方法 。
Detection of COD is very important in protection of environment . The contents of COD with the condensing and reflux of K 2Cr 2O 7 have high accuracy . But it without special devices of heating condensing and reflux has not been made . The method for the examination of COD with microwave digestion makes its operation easier and less expading time ,and remaining high accuracy.
出处
《桂林工学院学报》
2000年第S1期80-82,共3页
Journal of Guilin University of Technology
关键词
COD
微波消解
冷凝回流
准确度
COD
microwave digestion
condesing and reflux
accuracy
