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缬氨霉素铷离子选择电极的制备和应用
Construction and Application of Valinomycin Rubidium Ion Electrodes
【摘要】 缬氨霉素为中性载体的PVC膜铷离子选择电极有较好的选择性,KpRotb,K=0.35。该电极已用于铷的分析测定和含Rb+的水和醇水体系的热力学性质的研究。
【Abstract】 PVC membrane rubidium ion electrodes with valinomycin as neutral ionophore was prepared and its selective coefficient KpotRb,K=0.35.Determination of rubidium in some aqueous samples by the potentiometric method,known dilution-standard addition and potentiometric precipitation titration has been developed.The activity coefficients for RbCl and Rb2SO4 aqueous and nonaqueous(MeOH+H2O)mixtures were determined by electromotive force measurements with the electrodes.
【关键词】 铷离子选择电极;
缬氨霉素;
铷的测定;
【Key words】 Rubidium ion-selective electrode; Valinomycin; Determination of rubidium;
【Key words】 Rubidium ion-selective electrode; Valinomycin; Determination of rubidium;
- 【文献出处】 盐湖研究 ,Journal of Salt Lake Research , 编辑部邮箱 ,2006年01期
- 【分类号】O646.5
- 【被引频次】3
- 【下载频次】143