公开(公告)号：WO0107903A3

公开(公告)日：2001-08-16

申请号：PCT/US0019924

申请日：2000-07-20

Applicant: HONEYWELL INC

Inventor： BONNE ULRICH ,  GOETZ JAY ,  DASGUPTA PURNENDU K

IPC: G01N1/22 ,  B01D53/04 ,  G01N1/28 ,  G01N1/36 ,  G01N1/40 ,  G01N30/00 ,  G01N30/12 ,  G01N30/30 ,  G01N33/00

CPC classification number: G01N30/12 ,  G01N1/2214 ,  G01N1/40 ,  G01N1/405 ,  G01N2030/123 ,  G01N2030/3076 ,  G01N2030/3015

Abstract: A concentrator and sensor assembly are disclosed that use phased heaters to multiply the concentration levels that can be eluted, relative to operation with a single interactive element having a sorbent material to increase the concentration of desired gas constituents at a detector. This is accomplished here by providing two or more interactive concentrator elements that are selectively heated in a time phased sequence so that each of the interactive elements becomes heated and desorbs gas constituents into the sample fluid stream at substantially the same time that an upstream concentration pulse, produced by heating one or more upstream interactive elements, reaches the interactive element. This produces a multiplication effect that significantly increases the concentration of the gas constituents at the detector, thereby increasing the effective sensitivity of the detector.

Abstract translation: 公开了一种浓缩器和传感器组件，其相对于使用具有吸附剂材料的单个相互作用元件的操作，使相变加热器倍增可以被洗脱的浓度水平，以增加检测器处期望的气体组分的浓度。 这通过提供两个或更多个交互式集中器元件来实现，所述交互式集中器元件以时间相位顺序被选择性地加热，使得每个交互式元件被加热并且在基本上与上游浓度脉冲相同的时间将气体成分解吸到样品流体流中， 通过加热一个或多个上游交互元素而产生，到达交互元素。 这产生了显着增加检测器处气体成分浓度的增殖效应，从而增加了检测器的有效灵敏度。