Direct injection micro nebulizer and enclosed filter solvent removal sample introduction system, and method of use
US5272308A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Nov 23, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/1463
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A direct injection micro nebulizer based sample introduction system for use in nebulizing sample solutions in close proximity to sample analysis systems, with desolvation and solvent removal capability is disclosed. The present invention offers design features and utility not available in previously known micro nebulizer systems. Predominantly unibody design and use of nonmetalic, hydrofloric acid resistant construction materials are taught. The present invention allows easy cleaning and adjustment of element relationships which are necessary to proper operation of direct injection micro nebulizer systems. Use of separate or integrated protective sleeving on otherwise crushable sample solution delivery tubing is disclosed. Special direct injection micro nebulizer top elements and torch designs are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.