Gohara Emi, Osakai Toshiyuki
Department of Chemistry, Graduate School of Science, Kobe University, Nada, Kobe 657-8501, Japan.
Anal Sci. 2010;26(3):375-8. doi: 10.2116/analsci.26.375.
A flow system for electrochemical separation and detection of ions was constructed by connecting two oil/water (O/W)-type flow cells, in which a long polarizable O/W interface was formed at the inner surface of a porous poly(tetrafluoroethylene) (PTFE) tube. Using this system, acetylcholine and choline ions, whose ion-transfer potentials are different by only 60 mV, could be separated and determined simultaneously. It was thus shown that the present flow system is promising for the electrochemical flow separation/detection of ions and, in principle, also for electrochromatographic separation of ions.
通过连接两个油/水（O/W）型流通池构建了一种用于离子电化学分离和检测的流动系统，其中在多孔聚四氟乙烯（PTFE）管的内表面形成了一个长的可极化O/W界面。使用该系统，离子转移电位仅相差60 mV的乙酰胆碱和胆碱离子可以同时被分离和测定。因此表明，本流动系统有望用于离子的电化学流动分离/检测，并且原则上也可用于离子的电色谱分离。
