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US 2021/0086102 A1Published application
Two-Electrode Configuration for Separations Based on Electrosorption in Electrochemically Modulated Liquid Chromatography (EMLC)
AssigneeUniversity of Utah
InventorsMarc David Porter, Robert Joseph Soto, Mark Andrew Hayes
Life of this patent
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Abstract
This invention discloses a design a capillary column for use with electrochemically modulated liquid chromatography (EMLC). The capillary design, which results in a marked reduction in the flow of current through the column, enables the use of a two-electrode column construction that overcomes the mechanical and electrical shortfalls of the conventional standard bore design.
Claims10
An electrochemically modulated liquid chromatography (EMLC) column for the separation of a sample, the EMLC column comprising:
- a conductive stationary phase packed in a capillary fluidic channel which also functions as a working electrode in an electrochemical cell, wherein the working electrode has a low level of background current due to the relatively small surface area of the capillary fluidic channel and packed stationary phase;
- and
- a dual-purpose reference or pseudo reference electrode which provides a stable reference potential that is not appreciably perturbed by the background current of the working electrode, thereby eliminating the need to a current-carrying counter electrode.
Dependencies are inferred from the claim text.