摘要: |
根据动力学观点讨论了应用薄膜电位测定单独离子的活度问题,并用钾粘土薄膜电极在一定浓度范围内测定了单纯KCl溶液和混合溶液中钾离子活度;测定结果与Debye一Hiickel极限公式计算值符合,证明了钾粘土薄膜电位确能反映单独离子的活度。 |
关键词: 粘土薄膜电极,膜电位,动力学,单独离子活度 |
DOI: |
分类号:S153.3 |
基金项目: |
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Using the Clay Membrane Electrode to Measure Single Ion Activity |
Lu Dianqing
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Abstract: |
The problems of single ion activity measurement by using the membrane
potential were discussed from the kinetic point of view.The K+ activity in pure KCI solution and the mixed solution with multiple ions were measured with a certain concentration by using K clay membrane electrode.The results obtained by which were identical
with those obtained from the calculation by Debye一Hii ckel limited equation.It is
proved that the K clay membrane potential really can reflect the response of simple ion
activity· |
Key words: clay membrane electrode,membrane potential,kinetics,single ion activity |