Ionic pre-concentration XRF identification and analysis device, system and method
US7016462B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 8, 2002 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Nov 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device, system and method for detecting and measuring concentrations of elements in fluids comprises: flowing a fluid through a central flow interelectrode gap of an ionic preconcentration cell separating an upper high specific surface area electrode from a lower high specific surface area electrode of the ionic preconcentration cell by a predetermined interelectrode gap width; and applying a voltage differential between the upper high surface area electrode and the lower high surface area electrode while the fluid is flowing through the central flow interelectrode gap. As such, this cell that utilizes its inherent capacitance for double layer formation to extract ultra-trace levels of ionic contaminants from fluids in order to enhance detection by x-ray fluorescence analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.