中国资源综合利用2025，Vol.43Issue(1)：55-57,3.DOI:10.3969/j.issn.1008-9500.2025.01.015
快速消解分光光度法用于测定水质化学需氧量的可行性研究
Feasibility Study on Rapid Digestion Spectrophotometric Method for Determining Chemical Oxygen Demand in Water Quality
程霜 1朱静 1范双艳 2龚海群1
作者信息
- 1. 武汉市生态环境监控中心,武汉 430022
- 2. 湖北省生态环境厅武汉生态环境监测中心,武汉 430015
- 折叠
摘要
Abstract
Chemical Oxygen Demand(COD)is a monitoring item frequently involved in emergency monitoring.Laboratories generally use the dichromate method to determine COD,which has the problem of long analysis time.The rapid digestion spectrophotometric method uses a digester to rapidly digest water samples,and determines COD in standard and actual samples using a portable spectrophotometer.Based on this,taking emergency monitoring as an example,the feasibility of using rapid digestion spectrophotometry to determine COD in water quality is analyzed,and the results are compared and analyzed with those of the dichromate method.The experimental results showed that the relative standard deviation of rapid digestion spectrophotometry for determining COD in water quality was 1.0%～7.1%,and the relative error was-1.9%～2.5%,with no significant difference compared to the dichromate method.This method is simple,fast,accurate,and reliable to operate,and can be used for rapid determination of COD in emergency monitoring of water environment.关键词
应急监测/化学需氧量(COD)/快速消解分光光度法/可行性Key words
emergency monitoring/Chemical Oxygen Demand(COD)/rapid digestion spectrophotometric method/feasibility分类
资源环境引用本文复制引用
程霜,朱静,范双艳,龚海群..快速消解分光光度法用于测定水质化学需氧量的可行性研究[J].中国资源综合利用,2025,43(1):55-57,3.
