色谱

色谱 ›› 1994, Vol. 12 ›› Issue (3): 219-221.

• 94文章 • 上一篇    下一篇

离子色谱法测定雪样中Na＋、NH4+、K＋、Mg2＋和Ca2＋离子的含量

于泓,李萍萍,   

  • 出版日期:1994-05-30 发布日期:1994-05-30

  • Online:1994-05-30 Published:1994-05-30

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摘要： Determination of Na￣+, NH,K￣+ , Mg￣(2+) and Ca￣(2+) in snow by ion chromatography is described.A cation-exchange column was employed for separation and a conductivity monitor for detection. Na￣+,NH and K￣+ weredetermined with a solution of 4.00 mmol/L oxalic acid as eluent. Mg￣(2+) and Ca￣(2+) were determined Vvith 0. 50m mol/L oxalic acid +0.25 mmol/L ethylenediamine(pH 4.00)as eluent.The concentrations of the ions in snow were given.

关键词: 离子色谱, 雪., 阳离子