Laser ablation/ionizaton and mass spectrometric analysis of massive polymers
US5135870A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Jun 1, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25875
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sample containing one or more compounds of high molecular weight is analyzed by irradiating, with a pulsed laser in vacuum, a substrate coated with a thin frozen film of a solution containing the sample. The laser energy is absorbed at the surface of the substrate, rapidly heating the frozen film and ablating the solvent into a vapor plume which carries into the vapor phase entrained molecules of the sample. The vaporized molecules are ionized and accelerated into a mass spectrometer. Mass spectrometric determination of the masses of the ionized molecules of the sample allows the molecular components of the sample to be identified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.