化工环保2012，Vol.32Issue(4)：386-389,4.
顺序进样流动注射光度法测定水中氨氮
Determination of Ammonia in Water by Sequential Sampling and Flow Injection Spectrophotometry
摘要
Abstract
With the combination of sequential sampling and flow injection spectrophotometry, the ammonia automatic on-line monitor was developed for determination of ammonia mass concentration in water. The experimental results show that: When the injection volume is 0.39 mL, the chromogenic reagent volume is 0.33 mL, the residence time is 5 min and the carrier liquid flow is 2.0 mL/min, the ammonia mass concentration shows a good linear relationship with the absorbance A at a range of 0-15.00 mg/L, the standard curve equation is A=0.019 2ρ+ 0.236 2 with correlation coefficient of 0.999 3(n=11); The detection limit is 0.020 mg/L; the relative standard deviation is 0.50%-2.38%; The recovery of standard addition is 94.5%-106.0%.关键词
氨氮/顺序进样/流动注射/分光光度法/在线测定/分析方法Key words
ammonia/sequential sampling/flow injection/spectrophotometry/on-line determination/analysis method分类
资源环境引用本文复制引用
孙西艳,付龙文,吕颖,李玲伟,冯巍巍,陈令新..顺序进样流动注射光度法测定水中氨氮[J].化工环保,2012,32(4):386-389,4.基金项目
中国科学院"百人计划"项目 （）
烟台市科技攻关项目(No2011426). （No2011426）
