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

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

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 cyclohex...

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Dades bibliogràfiques
Autors principals: Zhang, H, Sepunaru, L, Sokolov,, S, Laborda, E, Batchelor-Mcauley, C, Compton, R
Format: Journal article
Publicat: Royal Society of Chemistry 2017
Descripció
Sumari: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.

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