| 纳氏试剂法测定水中低浓度氨氮的预处理方法的改进 |
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| 引用本文： | 李红亮,赵辉,许晓翠,朱泽军.纳氏试剂法测定水中低浓度氨氮的预处理方法的改进[J].环境监控与预警,2016,8(4):37-39. |
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| 作者姓名： | 李红亮 赵辉 许晓翠 朱泽军 |
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| 作者单位： | 河南省环境监测中心,河南 郑州,450004 |
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| 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。
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| 关 键 词： | 氨氮 纳氏试剂分光光度法 蒸馏法 吸收液 |
| 收稿时间： | 2016/2/25 0:00:00 |
| 修稿时间： | 2016/3/29 0:00:00 |
Improvement on Pretreatment for the Determination of Low concentration Ammonium Nitrogen in Water Using Nessler Reagent Method |
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| LI Hong liang,ZHAO Hui,XU Xiao cui,ZHU Ze jun.Improvement on Pretreatment for the Determination of Low concentration Ammonium Nitrogen in Water Using Nessler Reagent Method[J].Environmental Monitoring and Forewarning,2016,8(4):37-39. |
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| Authors: | LI Hong liang ZHAO Hui XU Xiao cui ZHU Ze jun |
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| Institution: | LI Hong-liang;ZHAO Hui;XU Xiao-cui;ZHU Ze-jun;Henan Province Environmental Monitoring Center; |
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| Abstract: | 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 ab-sorption solution.When the concentration was less than 1.0 mg/L, pure water was a better choice. |
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| Keywords: | Ammonium nitrogen Nessler reagent spectrophotometry Distillation Absorption solution |
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