AQ2间断化学分析仪测定地表水中的氨氮  

Determination of NH_3-N in the Surface Water with the AQ2 Discrete Analyzers

作　　者：夏卫红[1] 何慧红[1] 张梦宁[1] 

机构地区：[1]上海应用技术学院化学与环境工程学院,上海201418

出　　处：《上海应用技术学院学报（自然科学版）》2013年第4期278-280,284,共4页Journal of Shanghai Institute of Technology: Natural Science

基　　金：上海市教育委员会重点学科建设资助项目(J51502)

摘　　要：采用AQ2间断化学分析仪测定地表水中的氨氮,与标准纳氏法相比,测定结果无显著性差异,线性关系良好。方法操作简单,分析速度快,试剂用量少,在0.25~5.00mg/L范围内,氨氮检出限为19μg/L,相对标准偏差(RSD)和加标回收率分别在1.647 8%~5.865 1%和94.1%~109.4%。AQ2 discrete analyzers were utilized to measure the NH3-N in the surface water. The testing result was almost the same as that of traditional Nessler＇s reagent colorimetric method and two testing methods had good linear relation. The method was easy to operate and analyze quickly with less reagent. Between 0.25 ~5.00 mg/L, detection limit of the NH^-N was 0. 019 rag/L, RSD and recovery with adding standard sample was between l. 647 8% ~5. 865 1% and 94.1% ~109.4% ,respectively.

关 键 词：AQ2纳氏法 氨氮 标准纳氏分光光度法 相对标准偏差 

分 类 号：X832[环境科学与工程—环境工程]