Membrane-based purge gas and sample transfer for laser ablation sample processing
US12431346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Oct 8, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D7/0617
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods are described for transferring gas from an ablation cell to an inductively coupled plasma analysis system via a gas exchange membrane transfer line to exchange gas introduced to the ablation cell with a sweep gas. A system embodiment includes, but is not limited to, a laser ablation cell configured to generate a sample transfer stream through laser ablation of a sample and introduction of a carrier gas to flow the ablated sample from the laser ablation cell; an inductively-coupled plasma analysis device configured to measure one or more analytes in the sample transfer stream; and a gas exchange membrane transfer line fluidically coupled between the laser ablation cell and the inductively-coupled plasma analysis device, the gas exchange membrane transfer line configured to replace gas in the sample transfer stream with sweep gas via gas exchange across a membrane of the gas exchange membrane transfer line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.