Realization of a salt bridge-free microfluidic reference electrode.
basic_science · Level V
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- Record sourced from PubMed, PMID 22398879.
- Also identified by DOI 10.1039/c2lc21195e.
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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.