公开(公告)号：US11782033B2

公开(公告)日：2023-10-10

申请号：US16252081

申请日：2019-01-18

申请人： The Regents of The University of Michigan

发明人： Edward T. Zellers ,  Changhua Zhan ,  Robert W. Hower ,  Joseph A. Potkay

IPC分类号： G01N1/40 ,  G01N30/60 ,  G01N30/08 ,  G01N30/16 ,  G01N30/52 ,  G01N25/00 ,  G01N30/00 ,  F16L53/00

CPC分类号： G01N30/6095 ,  G01N1/405 ,  G01N30/08 ,  G01N30/16 ,  F16L53/00 ,  G01N25/00 ,  G01N30/52 ,  G01N2030/0095

摘要： A microscale collector and injector device comprises a microscale passive pre-concentrator (μPP) and a microscale progressively-heated injector (μPHI). The μPP devices comprises first and second substrate portions, a first collection material, a μPP heater, and an outlet. The first substrate portion defines an array of microscale diffusion channels. The first and second substrate portions cooperate to define a first compartment in fluid communication with the diffusion channels. The first collection material is disposed within the first compartment, at least partially surrounding the outlet. The μPP heater is disposed in thermal communication with the second substrate portion. The μPHI device comprises third and fourth substrate portions, a second collection material, and a plurality of μPHI heaters. The third and fourth substrate portions cooperate to define a second compartment. The second collection material is disposed within the second compartment. The μPHI heaters are disposed in thermal communication with the second compartment.