Patent ID: 7847242

Claim:
A pulse heating-inert gas fusion—time of flight mass spectrometric gas elements analyzer, comprising of a pulse heating electrode furnace, a sample charging system, a purification device, TOFMS, a signal acquisition and data processing system and an automatic control system, characterized in that said electrode furnace and sample charging system are united as one via upper/lower electrodes and upper/lower pneumatic cylinders to form a closed hearth, and jointly enter the sample into the graphite crucible between the upper and lower electrodes during analysis; said electrode furnace, purification device and time-of-flight mass spectrometer (TOFMS) 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 TOFMS; said signal acquisition and data processing system is connected to the detector of said mass spectrometer via signal cables for signal acquisition and amplification, and on the basis of computation by the data processing module of the computer software, outputs the mass percentages of O, N, H and Ar in the sample; the voltage and current monitoring meters in said automatic control system are connected through cables to the corresponding electric circuits of said analyzer; the gas pressure and gas flow monitoring meters are connected through gas pipelines to the corresponding gas pipelines of said analyzer; the automatic control module in said computer software controls the action of the actuating elements such as the pneumatic valve set and electromagnetic valve set according to the pre-configured program, so as to implement the automation of the analysis process.