连续流动法与纳氏试剂法测定水体中氨氮的对比研究  

Determination of Ammonia Nitrogen in Water by Continuous Flow Analysis and Nessler s Reagent Spectrophotometer

作　　者：龚丹 王保勤 GONG Dan;WANG Bao-qin(Jiangsu Suli Environmental Technology Co.,Ltd.,Jiangsu Nanjing 210000,China)

机构地区：[1]江苏省苏力环境科技有限责任公司,江苏南京210000

出　　处：《广州化工》2022年第6期102-104,共3页GuangZhou Chemical Industry

摘　　要：本文采用连续流动分析法(CFA)和纳氏试剂分光光度法对地表水和废水中氨氮的测定进行比较研究。结果表明:两种方法的准确度和精密度均满足地表水和废水中氨氮的测定要求,运用F检验和t检验方法证明CFA与纳氏试剂法测定结果之间无显著差异。纳氏试剂光度法的准确度和精密度更高,适用于标准样品考核分析,而CFA方法更加简便、快速、无污染,适用于大批量实际样品氨氮含量的测定。The measurement of ammonia and nitrogen in surface water and wastewater was compared by continuous flow analysis and nessler s reagent spectrophotometry.Results showed that the precision and accuracy of both analysis methods can meet the requirement of ammonia nitrogen in water measurement.There was no significant difference in two methods by F test and t test.Nessler s reagent spectrophotometry had higher accuracy and precision,which was suitable for standard sample examination and analysis.Continuous flow analysis had a wider linearity,with better analysis speed and less pollution,which was more suitable for large and complex sample analysis.

关 键 词：连续流动分析法 氨氮 纳氏试剂分光光度法 水质监测 

分 类 号：X832[环境科学与工程—环境工程]