| 摘要 |
PROBLEM TO BE SOLVED: To provide a nitrogen concentration analysis method and a nitrogen concentration analyzer of a metal material capable of analyzing a nitrogen concentration highly accurately. SOLUTION: This nitrogen concentration analyzer 10 includes a storage chamber 11, a primary ion irradiation device 12, a neutralization electron irradiation device 13, a communication tube 14, a flight chamber 15 and a secondary ion detection device 16. A metal sample 17 is stored in the storage chamber 11. A carbonaceous material adheres onto the surface of the metal sample 17. Pulsing primary ion is irradiated from the primary ion irradiation device 12 toward the surface of the metal sample 17. Hereby, cyanide ion is discharged from the metal sample 17. The cyanide ion discharged from the metal sample 17 is detected as secondary ion by the secondary ion detection device 16. COPYRIGHT: (C)2011,JPO&INPIT
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