Large volume analyte preconcentrator
AssigneeUniversity of Louisville Research Foundation, Inc.
InventorsMichael Martin, Robert Keynton, Thomas Roussel, Kevin M. Walsh, Douglas J. Jackson, John Naber, Julia W. Abersold, Richard B. Hagemann, III, Suraj Alexander, Scott Cambron
Life of this patent
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Abstract
A large volume preconcentrator device for concentrating analytes. A housing accepts an analyte vapor flow, and a plurality of collection surfaces are disposed within the housing. A selectively actuatable heater is disposed on each of the plurality of collection surfaces. At least one selectively actuable damper is disposed within the housing for selectively restricting a collection flow.
Claims20
A large volume preconcentrator device for concentrating analytes, the device comprising:
- a housing that accepts an analyte vapor flow;
- a plurality of supports disposed within said housing, each of said plurality of supports respectively defining a collection surface;
- a selectively actuatable heater disposed on the collection surface of each of said plurality of supports;
- a sorbent coating disposed on the collection surface of each of said plurality of supports;
- and
- at least one selectively actuable damper disposed within said housing for selectively restricting a collection flow.
A method for preconcentrating an analyte comprising:
- providing a plurality of collection surfaces disposed within a housing;
- receiving a collection flow through the housing, wherein the collection surfaces are positioned to face a direction of the collection flow, and wherein analyte is collected on the collection surfaces;
- actuating a plurality of dampers downstream of the collection surfaces for selectively to restrict the collection flow;
- and
- heating each of the collection surfaces to induce a desorption flow from the collection surfaces through the housing and to an outside device.
A large volume preconcentrator device for concentrating analytes, the device comprising:
- a housing for accepting an analyte vapor flow;
- means for supporting a plurality of collection surfaces facing a direction of a collection flow;
- means for collecting analyte on the plurality of collection surfaces during the collection flow;
- means for selectively restricting the collection flow at a position downstream of the plurality of collection surfaces;
- and
- means for inducing a desorption flow from the collection surfaces.
A large volume preconcentrator device for concentrating analytes, the device comprising:
- a housing that accepts an analyte vapor flow;
- a plurality of collection surfaces disposed within said housing;
- a selectively actuatable heater disposed on each of the collection surfaces;
- and
- at least one selectively actuable damper disposed within said housing and downstream of said plurality of collection surfaces for selectively restricting a collection flow.
Dependencies are inferred from the claim text.