Laser spectrochemical analysis
US4220414A · kind A · utility
27Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1977 |
| Grant date | Sep 2, 1980 |
| Priority date | — |
| Expiry date | Apr 28, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2833
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sample of material to be analyzed is applied in a thin layer to a substrate such as an elongated tape and then is illuminated by a laser beam of such wavelength and power that at least a portion of the sample is vaporized. The substrate is non-absorptive at the laser wavelength and therefore is unaffected by the laser beam. The vaporized matter is removed from the region at which vaporization takes place, and is subsequently excited in a plasma to facilitate analysis by a conventional spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.