主题：离子色谱法紫外测定海水中亚硝酸盐、硝酸盐、溴盐阴离子

离子色谱法紫外测定海水中亚硝酸盐、硝酸盐、溴盐阴离子
原文：袁丽霞， 顾海宁， 王慕华， 沈星， 陈朝晖， 蒋银土， 朱京平， 朱岩

现代分析仪器  2000年5期　
离子色谱法紫外测定海水中亚硝酸盐、硝酸盐、溴盐阴离子
袁丽霞 顾海宁 王慕华 沈星 陈朝晖 蒋银土 朱京平 朱岩
(浙江大学西溪校区应化所 杭州 310028)
    摘要：本文报道利用离子色谱法结合紫外检测的方法，采用Dionex Ionpic AS9HC(2mm)，以0.25mL/min流速的9mol/L NaCO3作为淋洗液，在高氯化钠含量条件下，同时成功的分离和检测痕量的亚硝酸盐、硝酸盐和非痕量的溴盐。各离子在紫外检测条件下有很好的线性，其检测下限分别为NO2- 0.170μg/mL，NO3- 0.081μg/mL，Br- 0.048μg/mL。对不同地区的海水进行测定，其回收率在74%至103%。
    关键词：离子色谱法；紫外检测；海水
    中图分类号：X834 文献标识码：B 文章编号：1003-8892(2000)06-0043-02
Anion Chromatographic Method with UV Absorbance Detector for SimultaneousDetermination of NO2-，NO3- and Br- in Seawater
Yuan Lixia Gu Haining Wang Muhua Shen Xing Chen Zhaohui Jiang Yintu
Zhu Jingpin Zhu Yan
(Department of Chemistry，Zhejiang University HangZhou 310028)
      Abstract：An ion chromatographic method with UV absorbance detector for the simultaneous separation and determination of NO2-，NO3-，Br- in the high content of NaCl. Separation was performed on a Dionpic Ionpic AS9-HC2mm column by using 9mol Na2CO3 as eluent. Good linearities of the concentrations of all and relevant peak area responses were achieved. The detection limits were 0.170μg/mL for NO2-，0.081μg/mL for NO3-，0.048μg/mL for Br- by absorbance detection. The method has been successfully applied to seawater in different regions，and the average recoveries for various ions ranged from 74% to 103%.
    Key words：Ion chromatography；absorbance detection；seawater

　
摘录：dujinx
(发表时间：2001-5-17 22:28:11