离子色谱法快速分析饮用水中的四种阴离子
RAPID DETERMINATION OF FOUR ANIONS IN DRINKING WATER BY ION-CHROMATOGRAPHY
摘 要
用Dionex DX-120离子色谱仪对饮用水中F-、Cl-、NO-3及SO2-4 4种阴离子进行测定,分析中采用了Dionex AS14阴离子分离柱对上述4种阴离子进行分离.作者等对Dionex公司所建议的色谱条件作了修改和改进,使方法的分析效能大大提高,达到了快速分析的要求.按改进后的色谱条件,4种离子的分离度达到了3.9的数值,4种阴离子测定结果的相对标准偏差值均小于2.5%,回收率在94%-108%之间.对有标准值的水样用此文的方法和国家标准方法同时进行比较分析,并用t-检验法对两方法的结果的可靠性,以及与标准值的比较,结果表明各离子(Cl-、NO-3及SO2-4)的测定结果之间均无显著性差异.
快速分析
氟离子
氯离子
硝酸根
硫酸根
饮用水
Ion-chromatography
Rapid determination
Fluoride ion
Chloride ion
Nitrate ion
Sulfate ion
Drinking water
Abstract
The Dionex DX-120 ion-chromatograph was used in the determination of F-,Cl-,NO-3 and SO2-4 anions in drinking water.The chromatographic conditions for separation of the four anions on the Dionex AS14 anion-separation column recommended and appendixed to the instrument was revised in this paper,making the analytical efficiency remarkably improved.Under the revised conditions,resolution of the peaks of the 4 anions achieved to values larger than 3.9.RSD′s of the results obtained were less than 2.5%.Recoveries found for the 4 anions were in the range of 94%-108%.In a comparative study for the accuracy of the results obtained by this method,as shown by the results of t-tests,no significant differences were founds as compared with the standard values and the results obtained by the chemical method of GB standard.
中图分类号 O657.37
所属栏目 工作简报
基金项目
收稿日期 2005/1/12
修改稿日期
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备注李怡(1976-),男,云南昆明人,硕士研究生,研究方向为应用化学.
引用该论文: LI Yi,LIU Xiao-song,ZHOU Fan,RAN Ya-li,HUANG Yu-xian. RAPID DETERMINATION OF FOUR ANIONS IN DRINKING WATER BY ION-CHROMATOGRAPHY[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2006, 42(10): 836～838
李怡,刘晓松,周帆,冉亚莉,黄玉仙. 离子色谱法快速分析饮用水中的四种阴离子[J]. 理化检验－化学分册, 2006, 42(10): 836～838
被引情况:
【1】张媛媛,佘小林,贺行良,夏宁,朱志刚, "离子色谱法测定沉积物中氯",理化检验－化学分册 48, 664-666(2012)
【2】陈绯,于媛君,胡海滨, "离子色谱法测定氧化铁粉中痕量氯离子",理化检验－化学分册 45, 1391-1393(2009)
【3】魏益华,张金艳,罗林广, "离子色谱法测定农村饮用水中阴离子",理化检验－化学分册 48, 213-214(2012)
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参考文献
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【2】牟世芬,刘克纳,侯小平.离子色谱新进展[J].环境化学,1992(1):73-82．
【3】Greengerg A E,Clesceri L S,Eaton A D.Standard methods for the examination of water and wastewater.18th ed[M].Washington D C:Public Health Assoc,1992:128-129．
【4】D4327-97,Standard Test Method for Anions in water by Chemically Suppressed Ion Chromatography[S]．
【5】卫生部卫法监发[2001]161号.生活饮用水卫生规范[Z]．
【6】武汉大学.分析化学[M].北京:高等教育出版社,1995:413-440．
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