Techniques for extending electrode serviceability and useful life in voltametric device
US10989688B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Sep 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/208
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure provides techniques for extending useful life of a reference electrode, as well as a novel voltametric system and measurement cell design and related chemistries. An automated, repeatable-use system features a reference electrode that directly immerses a metallic conductor into an analyte, with electrolytes (e.g., chlorides) used for measurement being separately added and removed for each measurement cycles; the metallic conductor can optionally be left exposed to clean dry air in between measurements. In one implementation, the system can be restricted to application with specific analytes (e.g., ground water) that are known in advance to be free of substances that could degrade reference electrode use or lifetime. Cleaning solutions can optionally be used that would not be practical with conventional (insulated) reference electrode designs. In another embodiment, a measurement cell can be configured to receive separated electrode modules, permitting independent cleaning/removal of the working electrode (or other electrodes).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.