Separation of dopamine and epinephrine by a novel electrophoresis technique with nafion membrane as separation column

A novel electrophoresis technique, in which a strip of perflurosulfonic-acid (nafion 117) membrane was used to replace the conventional separation column and liquid buffer solution within, was developed and employed to separate the mixture of dopamine and epinephrine under a low separation voltage of 100 V with quadruple pulses amperometry detection. It was showed that the so-called Nafion membrane electrophoresis could be one of very simple and easy method and has the potentiality to be used to separate and analyze some small organic biologic molecules. Foundation item: Support by the Foundation of Electroanalytical Chemistry Open Lab (203231510), Changchum, China. Biography: Fang Cheng (1971-), male, Lecture, Ph. D, research direction: Electroanalysis.