Apparatus and method for thermal assisted desorption ionization systems
First Claim
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1. A device comprising:
- one or more mesh;
an analyte deployed on a plastic surface associated with the one or more mesh;
an atmospheric pressure source configured to direct an ionizing species at the plastic surface; and
a supply to generate heat at the one or more mesh.
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Abstract
The present invention is directed to a method and device to desorb an analyte using heat to allow desorption of the analyte molecules, where the desorbed analyte molecules are ionized with ambient temperature ionizing species. In various embodiments of the invention a current is passed through a mesh upon which the analyte molecules are present. The current heats the mesh and results in desorption of the analyte molecules which then interact with gas phase metastable neutral molecules or atoms to form analyte ions characteristic of the analyte molecules.
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Citations
20 Claims
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1. A device comprising:
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one or more mesh; an analyte deployed on a plastic surface associated with the one or more mesh; an atmospheric pressure source configured to direct an ionizing species at the plastic surface; and a supply to generate heat at the one or more mesh. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A device comprising:
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one or more mesh; an analyte deployed on a porous surface associated with the one or more mesh; an atmospheric pressure source configured to direct an ionizing species at the porous surface; and a supply to generate heat to the one or more mesh. - View Dependent Claims (15, 16, 17)
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18. A device comprising:
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one or more mesh; an analyte deployed with one or both foam and sponge; an atmospheric pressure source configured to direct an ionizing species at the one or both foam and sponge; and a supply to generate heat to the one or more mesh. - View Dependent Claims (19, 20)
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Specification