Systems and methods for hot plasma analysis of analytes using membrane desolvator
US10497550B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2018 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Jun 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods for measuring analytes (e.g., potassium) under hot plasma conditions of ICP analysis systems (e.g., ICP-MS, ICP-AES, etc.) are described, where a membrane desolvation unit and nitrogen flow gas are included to reduce Argon interferences. A system embodiment includes a heated spray chamber configured to receive a liquid sample and a sample gas to aerosolize the liquid sample; a first condenser coupled to the heated spray chamber; a second condenser coupled to the first condenser; a heated membrane coupled to the second condenser; and a gas introduction component coupled to the heated membrane to receive a flow of gas and to combine the flow of gas with a dried sample aerosol leaving the heated membrane, wherein the flow of gas is introduced at a rate of approximately 2.67 percent to approximately 20 percent of a flow rate of the sample gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.