Electrolyte transport in charged single ion track capillaries

被引：59
|
作者：
Wolf, A
Reber, N
Apel, PY
Fischer, BE
Spohr, R
机构：
[1] GSI DARMSTADT,GESELL SCHWERIONENFORSCH GMBH,D-64220 DARMSTADT,GERMANY
[2] UNIV FRANKFURT,W-6000 FRANKFURT,GERMANY
[3] JINR,DUBNA,RUSSIA
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 105卷 / 1-4期
关键词：
D O I：
10.1016/0168-583X(95)00577-3
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The pH and concentration dependence of the electric current through etched single ion tracks in poly (ethyleneterephthalate) (PET) membranes is investigated using KCI solutions. The pH dependence of the current is attributed to the dissociation of the immobile carboxylic end groups attached to the PET leading to charged pore walls. As consequence a counterion layer near the pore walls is formed with increased conductivity. At low KCl concentrations surface conductivity can be several orders of magnitude above the regular volume conductivity.
引用
收藏
页码：291 / 293
页数：3
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