摘要
美国HACH公司制造的COD测定仪,操作简便,安全性好,但试剂依赖进口且价格昂贵。为了降低COD测定成本,减少环境污染,开发研究了哈希COD测定仪适用的替代试剂,该替代试剂通过实际样品和COD标准样品的实验验证,并和HACH进口试剂、国标方法测定结果相比较,结果表明,用替代试剂测定COD,方法的精密度好、准确度高,符合国家标准要求。
COD measuring instrument,made by HACH company,has the functions of safety and can be operated easily,but the reagent rely on imports and the price is expensive. In order to reduce the measurement cost of COD and environment pollution,the application of the substitute reagent of the HACH- COD instrument was developed. Through the actual sample and COD standard samples,the substitute reagent was verified by experiment,and also compared with import HACH reagent and the national standard method. The results showed that the method have good precision,high accuracy,and meet the requirements of the national standard.
出处
《干旱环境监测》
2016年第1期37-40,共4页
Arid Environmental Monitoring
