摘要
利用HACH-DRB200型COD消解仪,用自主研发的预制试剂,建立了测定COD浓度的分光光度法.COD在30～ 800 mg/L时,测定波长为605 nm,方法检出限为16 mg/L,加标回收率为97.40％ ～ 102.30％.测定费用低,准确度和精密度高,测定结果令人满意.
Spectrophotometry for determination of COD can be achieved by using HACH - DRB200 COD detector with self-make reagents. The detecting wave-length is 605nm ranged from 30 mg/L to 800 mg/L. Detection limited is 16 mg/L. The recovery rate of sample is between 97.40% - 102.30%. The results are satisfied because of the low cost, high accuracy and precision.
出处
《湖南有色金属》
CAS
2015年第6期74-77,共4页
Hunan Nonferrous Metals
关键词
分光光度法
废水
预制试剂
spectrophotometry
waste water
chemical oxygen demend
self-make reagents
