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Issue 24, 2017
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Electrochemistry of single droplets of inverse (water-in-oil) emulsions

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Abstract

We demonstrate the feasibility of electrochemically detecting individual water droplets dispersed in an oil phase (inverse emulsions) via the use of a redox probe confined in the droplet phase. The water droplets were tagged with potassium ferrocyanide, and were injected into an electrolyte cyclohexene/dichloromethane oil solution. Via simple cyclic voltammetry scans it is shown that single water droplets from a water-in-oil emulsion can be detected provided that rapid anion transfer from the oil to the water phase maintains electro-neutrality in the droplet.

Graphical abstract: Electrochemistry of single droplets of inverse (water-in-oil) emulsions

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Article information


Submitted
18 May 2017
Accepted
07 Jun 2017
First published
07 Jun 2017

Phys. Chem. Chem. Phys., 2017,19, 15662-15666
Article type
Communication

Electrochemistry of single droplets of inverse (water-in-oil) emulsions

H. Zhang, L. Sepunaru, S. V. Sokolov, E. Laborda, C. Batchelor-McAuley and R. G. Compton, Phys. Chem. Chem. Phys., 2017, 19, 15662
DOI: 10.1039/C7CP03300A

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