发明名称 |
Method for analytically determining oxygen for each form of oxide |
摘要 |
The method for analyzing a metal for oxygen, using inert gas carrying fusion/infrared absorption analysis, having the steps of: placing a metal analyte in a graphite crucible; heat-melting the metal analyte; extracting a gas from the melt bath; and analyzing the gas to determine the total oxygen content of the metal in the form of a plurality of separated waves, wherein the metal analyte is heated at a temperature rise rate of not more than 20 DEG C./sec in a period from a starting point A of a first wave to a peak point B of the first wave, held at a constant temperature in a period from the peak point B of the first wave to an end point C of the first wave, and, after the completion of the appearance of the first wave, is heated to melt the metal analyte for further analysis.
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申请公布号 |
US6143571(A) |
申请公布日期 |
2000.11.07 |
申请号 |
US19980113192 |
申请日期 |
1998.07.10 |
申请人 |
SANYO SPECIAL STEEL CO., LTD. |
发明人 |
NURI, YOSHIO;ISE, TOMOKO;KATO, YOSHIYUKI |
分类号 |
G01N21/35;G01N33/20;(IPC1-7):G01N33/20 |
主分类号 |
G01N21/35 |
代理机构 |
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代理人 |
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地址 |
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