Gottlieb M H
Biophys J. 1968 Dec;8(12):1413-25. doi: 10.1016/s0006-3495(68)86563-4.
This paper examines the applicability of the Nernst-Planck approach in treating the relationship between the initial rates at which critical ions interexchange across permselective membranes in bi-ionic systems and the rates of self-exchange of these ions across the same membranes. Data are presented for five species of univalent cations with two types of cation permeable membranes, a polystyrene sulfonic acid-collodion matrix membrane, and an oxidized collodion membrane; five species of univalent anions were studied with a protamine-collodion matrix anion permeable membrane. Except with systems involving H(+) ion, the experimentally found relationships between the rates of interexchange and the rates of self-exchange were in agreement, in most cases within +/-5%, with the values calculated from an expression in which interaction between the critical ions in the membrane is not taken into account. In systems with H(+) ion, the experimental rates of interexchange were from 27% to 40% less than calculated values.
本文研究了能斯特-普朗克方法在处理双离子体系中临界离子跨选择透过膜的初始交换速率与这些离子在同一膜上的自交换速率之间关系的适用性。给出了五种单价阳离子与两种类型的阳离子渗透膜（聚苯乙烯磺酸-火棉胶基质膜和氧化火棉胶膜）的数据；使用鱼精蛋白-火棉胶基质阴离子渗透膜研究了五种单价阴离子。除了涉及H(+)离子的体系外，实验发现的交换速率与自交换速率之间的关系在大多数情况下与未考虑膜中临界离子间相互作用的表达式计算值相符，误差在±5%以内。在含有H(+)离子的体系中，实验交换速率比计算值低27%至40%。
