摘要
探讨了纳氏试剂分光光度法测定氨氮时水样的预处理方式;对硼酸吸收液影响氨氮测定及影响的消除进行了研究;在HJ535-2009的基础上,改进了实验过程,对氨氮标准样品进行测定并取得了很好的效果。
Pretreatment methods in determining amonia nitrogen by Nessler’S reagent spectrophotometry were discussed. The influence of boric acid absorption liquid on determination of amonia nitrogen was studied, and elimination methods of the influence were investigated, the experimental process was improved on the basis of national standard(HJ 535-2009).The method was used to determine the standard sample of amonia nitrogen, and the determination results were satisfactory.
作者
陈志强
CHEN Zhi-qiang(Fushun Eco-environmental Monitoring Center of Liaoning Province,Liaoning Fushun 113006,China)
出处
《辽宁化工》
CAS
2020年第6期741-743,共3页
Liaoning Chemical Industry
关键词
纳氏试剂分光光度法
预蒸馏
硼酸吸收液
稀释
Nessler’s reagent spectrophotometry
Predistillation
Boric acid absorption liquid
Dilution
