分光光度法测定水体中氨氮实验条件影响分析

Analysis of the Influence of the Experimental Conditions of Ammonia Nitrogen in Water Body by Spectrophotometry

纳氏试剂分光光度法是测定水质氨氮的方法之一,具有操作简便、灵敏等特点,但受到滤纸中氨含量、显色时间、温度、p H等因素的影响。为了减少实验误差,确保实验数据的准确性,文章就上述因素对纳氏试剂法测定氨氮的影响进行探讨并提出了见解。

Nessler＇s reagent spectrophotometric method is one of the ammonia water method has the characteristics of simple, sensitive and so on Determination of, but by the ammonia content in the filter paper, explicit color time, temperature, p H value etc. factors. In order to reduce the experimental error and ensure the accuracy of the experimental data, this paper discusses the influence of the above factors on the determination of ammonia nitrogen by the reagent method and puts forward some ideas.