Use of a nebulizer to add gas to eliminate metal deposition on the sampling orifices of an inductively coupled plasma mass spectrometer
US6992282B2 · kind B2 · utility
2Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2002 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Jul 20, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25875
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Use of a nebulizer add-gas to reduce metal deposition on the sampling orifices of an inductively coupled plasma mass spectrometer (“ICP-MS”) is disclosed. Specifically, dilute mixtures of Sulfur Hexafluoride (SF6) in an inert gas have been used to reduce transition metal deposition on the sampling orifices of an ICP-MS, thereby greatly enhancing the stability of the ICP-MS sensitivity over time without corroding the internal parts and/or chemically attacking the cones of the ICP-MS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.