发明名称 |
Preconcentrator and Detector Apparatus |
摘要 |
IMS apparatus has a preconcentrator (20) connected at the inlet (2) of an IMS detector (1) such that all gas supplied to the detector flows through the preconcentrator. The preconcentrator comprises a metal tube (21) having a layer of silicone rubber (24) exposed on its inner surface (25). An electrical resistance heating element (22) extends under the silicone rubber layer (24) and is connected to a power source (23) such that the silicone rubber layer can be periodically heated to desorb substances absorbed by the layer and release them to flow to the IMS detector 1 at a higher concentration. The silicone rubber (24) can operate in the desorption phase in the presence of air without degradation.
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申请公布号 |
US2009090196(A1) |
申请公布日期 |
2009.04.09 |
申请号 |
US20070225482 |
申请日期 |
2007.03.27 |
申请人 |
CLARK ALASTAIR;MCINTYRE HENRY PAUL;MUNRO WILLIAM ANGUS;TAYLOR STEPHEN JOHN;TURNER ROBERT BRIAN |
发明人 |
CLARK ALASTAIR;MCINTYRE HENRY PAUL;MUNRO WILLIAM ANGUS;TAYLOR STEPHEN JOHN;TURNER ROBERT BRIAN |
分类号 |
G01N1/40;B01D59/44 |
主分类号 |
G01N1/40 |
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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