Controlled separation of laser ablation sample gas for direction to multiple analytic detectors
US11275029B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2019 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Dec 6, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/0463
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser-ablation-based analytical system can include a sample chamber input, a make-up gas input, a vacuum pump, and an output flow. The sample chamber input can be configured to deliver a sample chamber gas flow comprised of combination of a laser-ablated sample and a sample-carrier gas from a sample chamber. The make-up gas input can be configured to provide an amount of make-up gas to supplement the combination of the laser-ablated sample and the sample-carrier gas. The vacuum pump can be fluidly connected to the sample chamber input and the make-up gas input, the vacuum pump configured to create a negative pressure in a sample transport gas downstream of the vacuum pump, the sample transport gas including the make-up gas, the laser-ablated sample, and the sample-carrier gas. The output flow can be configured to deliver the sample transport gas from the vacuum pump to a detection device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.