摘要
采用快速分光光度法和重铬酸钾法对同一标准样品和污水样品进行COD的测定并作比较。实验结果表明,快速分光光度法可大大缩短COD的测定时间,且方法操作简便,节省试剂,而且可以消除测定干扰。测定值与重铬酸钾法基本一致,均在正常范围内。
In this paper, we used rapid spectrophotometric method and potassium dichromate reflux method to determine the COD of the same standard samples and water samples. Experimental results show that the spectrophotometric method has following advantages, saving time and reagent, eliminating the reagent interference Measurements are basically identical with potassium dichromate reflux method. They are all within the normal range.
出处
《中国资源综合利用》
2016年第7期49-50,共2页
China Resources Comprehensive Utilization
关键词
化学需氧量
快速分光光度法
重铬酸钾法
COD
rapid spectrophotometric
potassium dichromate reflux method
