摘要
选用纳氏试剂分光光度法测定氨氮时,比较蒸馏法中分别以硼酸和纯水为吸收液时氨氮的检测效果。结果显示,当氨氮质量浓度>1.0 mg/L时,用纯水或硼酸作吸收液均可;当氨氮质量浓度<1.0 mg/L时,应以纯水为吸收液。
Comparison was made between using boric acid and pure water as the absorption solution during distillation using the Nessler reagent spectrophotometric method for determining the concentration of ammonium nitrogen in water. The results showed that when the concentration of ammonium nitrogen was higher than 1.0 mg/L, either boric acid or pure water could be used as the absorption solution. When the concentration was less than 1.0 mg/L, pure water was a better choice.
出处
《环境监控与预警》
2016年第4期37-39,共3页
Environmental Monitoring and Forewarning
关键词
氨氮
纳氏试剂分光光度法
蒸馏法
吸收液
Ammonium nitrogen
Nessler reagent spectrophotometry
Distillation
Absorption solution
