| 自动分析仪次溴酸钠氧化法测定海水中氨氮的研究 |
| |
| 引用本文： | 刁焕祥.自动分析仪次溴酸钠氧化法测定海水中氨氮的研究[J].海洋科学,1983,7(1):25-28. |
| |
| 作者姓名： | 刁焕祥 |
| |
| 作者单位： | 中国科学院海洋研究所 |
| |
| 摘 要： | 海水中氨的含量变化幅度在5—50mg-N/m~3之间,一般采用此色法测定。自1856年Nessler提出利用碱性HgI_4]~=与氨生成黄色化合物进行其测定开始,一个多世纪来分析方法虽多并屡加改进提高,但结果仍远不能令人满意。
|
A STUDY OF THE DETERMINATION OF AMMONIA IN SEA WATER WITH AUTOMATIC ANALYZER OXIDATION PROCESS OF SODIUM HYPOBROMITE |
| |
| Abstract: | It has been difficult to determine the ammonia in sea water. The author has made improvement to the method of determining the ammonia with the oxidizing reaction of sodium hypobromite proposed by Gao Fengming et al. The method is suitable for Automatic Analyzer due to the finding of the optimal concentration of the oxidizer after adding the complexing agent for calcium and magnesium. This method is proved to be of high precision. The standard deviation is 0.2mg/m3 at a level of NH4-N 9.0mg/m3. The rate of recovery is over 97%. The preparation of reagent is simple and the stability of the reagent can be well maintained. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《海洋科学》浏览原始摘要信息 |
| 点击此处可从《海洋科学》下载免费的PDF全文 |
|
