- 作者: 潘貫; 孫炳榕; 翁文魁
- 作者服務機構: Contribution from the Department of Chemistry, National Taiwan University
- 中文摘要: Cadmium EDTA complexes in the acetate buffer has been used as an indicator electrolyte in the determination of zirconium and hafnium as EDTA complexes at pH 4.2. The polarographic determination of zirconium and hafnium could be made with solutions of concentrations as low as 10¯6 molar or 0.1 p.p.m. The results were compared with those obtained by potentiometric titration of the free cadmium ion in the concentration range 10¯3 to 10¯4 molar using cadmium amalgam as an indicator electrode.
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