在线蒸馏-无人值守连续流动分析法测定污水中氨氮

何青青; 窦艳艳; 徐荣; 唐佳婷

引用本文:	何青青，窦艳艳，徐荣，唐佳婷.在线蒸馏-无人值守连续流动分析法测定污水中氨氮[J].环境监控与预警,2016,8(3):18-20
	HE Qing qing， DOU Yan yan， XU Rong， TANG Jia ting.Determination of Ammonia Nitrogen in Wastewater by Continuous Flow Analysis with Online Distillation and Unattended System[J].Environmental Monitoring and Forewarning,2016,8(3):18-20

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在线蒸馏-无人值守连续流动分析法测定污水中氨氮
何青青，窦艳艳，徐荣，唐佳婷
南京市环境监测中心站，江苏南京 210013

摘要:

采用在线蒸馏-无人值守连续流动分析法对污水中氨氮进行检测，方法在0.00~10.0 mg/L范围内线性良好，检出限为0.014 mg/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93.0%~108%，精密度和准确度均能满足污水中氨氮的测定要求。

关键词: 氨氮连续流动分析在线蒸馏无人值守

DOI：

分类号:X832；O657.32

基金项目:

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

HE Qingqing， DOU Yanyan， XU Rong， TANG Jiating

Nanjing Environmental Monitoring Center， Nanjing， Jiangsu 210013， China

Abstract:

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% and 108%. The precision and accuracy of this method fulfilled the requirement for the determination of ammonia nitrogen in wastewater.

Key words: Ammonia nitrogen Continuous flow analysis Online distillation Unattended system