title: Realization of a salt bridge-free microfluidic reference electrode.
abstract: We report on the design of a microfluidic electrochemical cell with a true Ag/AgCl reference electrode that does not rely on a physical barrier or salt bridge, but instead takes advantage of slow diffusion times in micro-channels. The device concept is demonstrated in PDMS using the Ir(+IV)/Ir(+III) redox couple as an example. A scaling analysis provides limits of operation for the device.
authors.affiliation: Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
authors.forename: E Victoria
authors.initials: EV
authors.lastname: Dydek
authors.forename: Montana V
authors.initials: MV
authors.lastname: Petersen
authors.forename: Daniel G
authors.initials: DG
authors.lastname: Nocera
authors.forename: Klavs F
authors.initials: KF
authors.lastname: Jensen