摘要
采用水杨酸-次氯酸盐光度法,研究了pH对KS2301氨氮在线监测仪测量结果的影响。研究结果表明,酸碱度对仪器测量结果的准确性均有影响,其中,酸度的影响较碱度的影响要大。当PH为11.6～11.7时,显色剂的显色效果最好,仪器在这个值附近测量结果最稳定。
This paper is about the influence of pH value in the measuring results of ammonia nitrogen online monitoring instruments with method of Salicylic acid-hypochlorite.The results show that the pH value does have an effect on the accuracy of measurement results,from which we can conclude that the impact of acidity is greater than that of alkalinity.When the pH value is between 11.6 and 11.7,the colored effect of the reagent is best,and the measuring results of instruments are most stable.
出处
《中国环境监测》
CAS
CSCD
北大核心
2013年第3期123-127,共5页
Environmental Monitoring in China
基金
国家水环境监测技术体系研究与示范基金资助项目(2009ZX07527-007)
关键词
酸碱度
氨氮在线监测仪
影响
pH
ammonia nitrogen online monitoring instruments
impact
