Sample nebulizer and evaporation chamber for ICP and MIP emission or mass spectrometry and spectrometers comprising the same
US5534998A · kind A · utility
21Cited by
1References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1994 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Dec 14, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N35/1095
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a nebulizer and spray chamber (3) for producing an aerosol (7) suitable for feeding into the plasma torch of an ICP or MIP emission or mass spectrometer. The aerosol (7) is subjected to rapid radiative heating (26) to evaporate the smaller droplets to dryness and preferably to cause the larger droplets to disintegrate into smaller droplets before they are completely evaporated. Nebulizer/spray chamber combinations according to the invention have higher sample transport efficiency than prior types. Optical and mass ICP and MIP spectrometers incorporating the nebulizer and spray chamber are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.