Voltammetry at a liquid-liquid interface supported on a metallic electrode

A liquid-liquid interface supported on a metallic electrode has been used t o study ion transfer (IT) and electron transfer (ET) reactions by cyclic vo ltammetry. The system is composed of an aqueous droplet supported on a plat inum disc electrode and immersed into an organic electrolyte solution. Depe nding on the nature of the dissolved species present in the aqueous solutio n, and in the organic electrolyte solution, different electrochemical coupl ed reactions can be observed. This method enables a fast and convenient met hod to measure standard transfer potentials for example of ionised drug mol ecules. (C) 2001 Elsevier Science B.V. All rights reserved.