摘要
应用正交试验法探讨氨氮空白偏高的原因,确定了防止氨氮空白偏高的最佳显色条件为用无氨水作空白,用过滤的酒石酸钾钠溶液作掩蔽剂,20℃比色测定,所得测定空白吸光度最低。同时还发现氨氮空白的升高,可使样品监测结果偏低,显色温度升高,可使样品监测结果偏高。
Using high ammonia blank orthogonal test to explore the reasons of high ammonia in order to prevent gaps identified in the best conditions for the use of ammonia - free water for the color gap. Potassium Sodium Tartrate filtration solution for the masking agent, Colorimetric Determination of 20 ℃, measured from the lowest absorbency blank. It also found gaps in the elevated ammonia, the result will make the result of sample monitoring to be low color, the temperature rises, and it will cause the rise of results of samples monitoring Well.
出处
《平顶山工学院学报》
2006年第5期43-44,61,共3页
Journal of Pingdingshan Institute of Technology
关键词
氨氮空白
偏离
原因分析
测定结果
ammonia blank
higher
analysis
determination results
