摘要
为提高纳氏试剂分光光度法测定氨氮的准确度,通过实验研究了显色时间为5min、10 min、20 min、30 min、40 min、50 min的情况下对氨氮测定结果的影响,结果表明,加入纳氏试剂充分摇匀后,显色时间应控制在10~20 min。
In order to improve the accuracy of ammonia nitrogen determination with Nessler＇s reagent spectrophotometry, the effect of coloration time（5 min, 10 min, 20 min, 30 min, 40 min, 50 min） on test results was studied. The results show that the coloration time should been kept between 10-20 min after completely mixing.
作者
朱美华
葛沭锋
王庆刚
申礼鹏
ZHU Mei-hua1,2 , GE Shu-feng1,2 , WANG Qing-gang1,2 , SHEN Li-peng1,2(1.National Engineering Laboratory of Coal Mine Ecological Environment Protection, Huainan 232001, China; 2.National Engineering Research Institute of Coal Mining, Huainan 232001, Chin)
出处
《能源环境保护》
2018年第2期51-53,共3页
Energy Environmental Protection
基金
国家重点研发计划项目
关键词
纳氏试剂
氨氮
显色时间
Nessler＇s reagent
Ammonia nitrogen
Coloration time.
