发明名称 |
Coaxial electron capture detector with thermionic emission electron source |
摘要 |
An electron capture detector in which electrons for the reaction are supplied by a filament in a cylinder through which guard gas is passed. Apertures in the cylinder permit electrons from the filament to pass into an annular space surrounding the cylinder and between it and a collector. Sample gas is passed between the aperture and the collector, the pressures being such as to be capable of minimizing the diffusion of sample gas to the filament.
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申请公布号 |
US4264817(A) |
申请公布日期 |
1981.04.28 |
申请号 |
US19790015689 |
申请日期 |
1979.02.27 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
NEUKERMANS, ARMAND P.;MCMANIGILL, DOUGLASS |
分类号 |
G01N27/64;G01N27/62;G01N30/70;(IPC1-7):H01J39/28 |
主分类号 |
G01N27/64 |
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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