Separation and Detection of Lanthanide Ions with Nitrilotri (methylenephosphonic) Acid as Complexing Agent and Eluent by IPC

稀有金属（英文版）, 2000, 19(2): 136-140.

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1.Department of Chemistry,Northwest Normal University,Lanzhou 730070,China

2.Department of Chemistry,Northwest Normal University,Lanzhou 730070,China

3.Department of Chemistry,Northwest Normal University,Lanzhou 730070,China

4.Gansu Political Science and Law Institute,Lanzhou 730070,China

5.Department of Chemistry,Lanzhou University,Lanzhou 730000,China

Separation and Detection of Lanthanide Ions with Nitrilotri (methylenephosphonic) Acid as Complexing Agent and Eluent by IPC

Keywords： Separation

A mixture containing eleven lanthanide ions was separated and detected on an anion-exchange co-lumn by ion chromatography with indirect photometry detection (IPC).An aqueous solution of 1.5×10-2mol/L nitrilotri(methylenephosphonic) acid and 2.5×10-3mol/L tiron was used as the eluent in which the former served as complexing agent and eluent,the latter played as color reagent and eluent.The effects of acidity,concentration and composition of eluent on the retention behavior of the analytes and detection sensitivity are discussed.

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Separation and Detection of Lanthanide Ions with Nitrilotri (methylenephosphonic) Acid as Complexing Agent and Eluent by IPC

参考文献