Method and apparatus for analytical sample preparation
US5369035A · kind A · utility
2Cited by
17References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1993 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Apr 2, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25875
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the elemental analysis of an analyte present in a sample by optical or mass spectrometry, a nebulizer sprays the liquid sample into a chamber which has a wall transparent to infra-red radiation. Infra-red radiation from a heater external to the chamber is focused on to the droplets of sample as they emerge from the nebulizer, disrupting the droplets into smaller ones and evaporating solvent from them as they pass through the chamber. The thus desolvated sample stream is delivered into a plasma and the reaction accuracy within the plasma is qualified by the spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.