发明申请
- 专利标题： Preconcentrator and Detector Apparatus
- 专利标题（中）： 预浓缩器和检测器
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申请号： US12225482申请日： 2007-03-27
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公开(公告)号： US20090090196A1公开(公告)日： 2009-04-09
- 发明人: Alastair Clark , Henry Paul McIntyre , William Angus Munro , Stephen John Taylor , Robert Brian Turner
- 申请人： Alastair Clark , Henry Paul McIntyre , William Angus Munro , Stephen John Taylor , Robert Brian Turner
- 优先权： GB0606346.5 20060330
- 国际申请： PCT/GB2007/001098 WO 20070327
- 主分类号： G01N1/40
- IPC分类号： G01N1/40 ; B01D59/44
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.
信息查询
