浙江大学学报（理学版）2017，Vol.44Issue(4)：485-492,8.DOI:10.3785/j.issn.1008-9497.2017.04.014
双系统离子色谱法同时测定湖水中的氨氮和过硫酸根
Simultaneous determination of ammonia nitrogen and peroxydisulfate in lake water by dual system ion chromatography
戚荣平 1周晓红 2孟琪 2桑娴 2商晓春 2郭伟强2
作者信息
- 1. 浙江大学 化学系, 浙江 杭州 310027
- 2. 杭州市下城区疾病预防控制中心, 浙江 杭州 310003
- 折叠
摘要
Abstract
In order to study the ability of peroxydisulfate in degrading ammonia nitrogen and other nitrogen compounds in water, it is necessary to analyze the content of nitrogen compounds and peroxydisulfate in the water.Simultaneous determination of ammonia nitrogen and peroxydisulfate in lake water by dual system ion chromatography was proposed.Ammonia nitrogen could be decomposited by peroxydisulfate under the proper condition of light, heat and transition metal ions.KOH and MSA were used as eluent, and suppression conductivity detector was used for detection.The detection limits (LODs) of ammonia nitrogen and peroxydisulfate were 0.005 mg·L-1 and 0.009 mg·L-1, respectively, based on the signal-to-noise ratio of 3 (S/N=3) and the 25 μL injection volume.Relative standard deviations (RSDs) for retention time and peak area were all less than 1.78%.The easy and fast method was performed with satisfactory recoveries between 98.2% to 103.5% for all ions.It provides a convenient, rapid and effective analysis method for environmental monitoring.关键词
双系统离子色谱/氨氮/过硫酸根/同时测定分类
化学化工引用本文复制引用
戚荣平,周晓红,孟琪,桑娴,商晓春,郭伟强..双系统离子色谱法同时测定湖水中的氨氮和过硫酸根[J].浙江大学学报（理学版）,2017,44(4):485-492,8.
