Pulse heating-time of flight mass spectrometric gas elements analyzer
US7847242B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jun 5, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/4022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulse heating—time of flight mass spectrometric gas elements analyzer, which involves the chemical analysis field of inorganic materials, and comprises of a pulse heating electrode furnace, a sample charging system, a purification device, a time-of-flight mass spectrometer, a signal acquisition and data processing system, and an automatic control system. Said electrode furnace and sample charging system are united as one via upper/lower electrodes and pneumatic cylinders, to form a closed hearth. Said electrode furnace, purification device and time-of-flight mass spectrometer are interconnected through the gas pipelines: the purified inert carrier gas comes into the hearth from its top, carrying out the gas components released from sample fusion, and upon re-purification, comes into the time-of-flight mass spectrometer; said signal acquisition and data processing system is connected to the detector of the said mass spectrometer via signal cables, and on the basis of computation by the data processing module of the relevant computer software, outputs the mass percentages of O, N, H and Ar in the sample. The lower limit of detection can be below 0.01 ppm to 0.1 ppm, and no less tha…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.