在线蒸馏-无人值守连续流动分析法测定污水中氨氮  

Determination of Ammonia Nitrogen in Wastewater by Continuous Flow Analysis with Online Distillation and Unattended System

作　　者：何青青[1] 窦艳艳[1] 徐荣[1] 唐佳婷 

机构地区：[1]南京市环境监测中心站,江苏南京210013

出　　处：《环境监控与预警》2016年第3期18-20,共3页Environmental Monitoring and Forewarning

摘　　要：采用在线蒸馏一无人值守连续流动分析法对污水中氨氮进行检测，方法在0．00～10．0mg／L,范围内线性良好，检出限为O.014mmg/L，实际样品测定的相对标准偏差为1．24％～4．15％，加标回收率为93．O％～108％，精密度和准确度均能满足污水中氨氮的测定要求。Ammonia nitrogen in wastewater was determined by continuous flow analysis( CFA) with online distillation and unattended system. This method showed good linearity in the range of 0. 00 to 10. 0 mg / L,and the detection limit was 0. 014 mg / L. The relative standard deviations( RSD) of parallel samples were between 1. 24% and 4. 15%. The recovery rates were between 93. 0% and108%. The precision and accuracy of this method fulfilled the requirement for the determination of ammonia nitrogen in wastewater.

关 键 词：氨氮 连续流动分析 在线蒸馏 无人值守 

分 类 号：X832[环境科学与工程—环境工程] O657.32[理学—分析化学]