Direct liquid injection inlet to a laser photoionization apparatus
US7095016B2 · kind B2 · utility
0Cited by
7References
14Claims
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Key dates
| Filing date | Apr 29, 2004 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Jun 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/0445
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are provided for analyzing an analyte at low concentration in a liquid sample by photoionization and mass spectrometry. An inlet system is provided for direct injection of the liquid sample using a capillary tube. The method and apparatus allow for 20 to 2000-fold improvement of the lower detection limit of an analyte in a liquid sample compared to a conventional liquid chromatography/mass spectrometer apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.