发明名称 |
Method and apparatus for nondestructive selective determination of a metal |
摘要 |
An amount and distribution of platinum dispersed on a catalyst carrier is determined by generating at least two energy components of lead x-rays by fluorescence of lead with gadolinium or cobalt and directing the x-rays onto a surface of the carrier and then determining an amount of platinum based upon relative attenuation of the two energy components of lead x-rays proportional to a relative amount of platinum thereon.
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申请公布号 |
US5185773(A) |
申请公布日期 |
1993.02.09 |
申请号 |
US19910732525 |
申请日期 |
1991.07.19 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
BLOSSFELD, DANIEL H.;SCHNEIDER, ERIC W. |
分类号 |
G01N23/06 |
主分类号 |
G01N23/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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