Laser ablation cell
US9496124B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 24, 2014 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jun 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser ablation cell (1) comprises a flow channel (11) having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber (21) is provided adjacent to a lateral opening (14) of the flow channel. A laser beam (41) enters the sample chamber (21) through a lateral window (16) and impinges on a surface (24) of a sample (23) to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.