首页 | 本学科首页   官方微博 | 高级检索  
     检索      

低压离子色谱法测定天然水中Cl~-,NO_3~-和SO_4~(2-)
引用本文:杨建男,洪梅,蔡晨新.低压离子色谱法测定天然水中Cl~-,NO_3~-和SO_4~(2-)[J].色谱,1998,16(1):62-64.
作者姓名:杨建男  洪梅  蔡晨新
作者单位:江苏石油化工学院应化系
摘    要: 利用低压离子色谱法(电导检测器)测定了沈阳地区自来水、湖水、河水和雨水中的Cl-,NO-3和SO2-4。当以1.44mmol/LNa2CO3作淋洗液、流速为1.2mL/min时,分离效果良好,3种阴离子的检出限分别为0.0136,0.204和0.161mg/L,回收率为90%~104%。选定的色谱条件同样适用于NO-2和SO2-3的测定。重点讨论了用低压离子色谱法测定阴离子时在选用淋洗液组成上的局限性。

关 键 词:低压离子色谱法  天然水  阴离子

Determination of anions in natural water with low pressure ion chromatography]
J Yang,M Hong,C Cai.Determination of anions in natural water with low pressure ion chromatography][J].Chinese Journal of Chromatography,1998,16(1):62-64.
Authors:J Yang  M Hong  C Cai
Institution:Department of Applied Chemistry, Jiangsu Institute of Petrochemical Technology, Changzhou, 213016.
Abstract:An application of low pressure ion chromatography to the analysis of natural water is described. Cl-, NO3- and SO4(2-) in the local tap water, lake, river and rain waters were separated and quantified. The limits of detection for Cl-, NO3- and SO4(2-) were 0.0136, 0.204, and 0.161 mg/L, respectively, and the recoveries were between 90% and 104%. The optimum condition is 1.44 mmol/L of Na2CO3 in eluent at a flow rate of 1.2 mL/min. The conductivity detector was used at 1.4 mu omega-1 and the sample volume injected was 20 microL. Similar chromatographic condition is also suitable for determination of NO2- and SO3(2-) in water samples. Furthermore, the limitations of the eluent composition used is also discussed.
Keywords:NULL
本文献已被 维普 等数据库收录!
点击此处可从《色谱》浏览原始摘要信息
点击此处可从《色谱》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号