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US 12,181,394 B2Granted
Method and system for trace detection of low volatile substances
AssigneeAnalytical Detection LLC
InventorsAndrey N Vilkov, Joseph Adam Widjaja, Jack Albert Syage
Life of this patent
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Abstract
A system includes a conductive sampling swab including a non-mesh substrate and a thermal desorber including a clamping assembly configured to releasably hold the conductive sampling swab. The clamping assembly is configured to be electrically connected to a voltage or current source, and the thermal desorber is configured to resistively heat the conductive sampling swab to a temperature sufficient to vaporize a sample material disposed on the conductive sampling swab.
Claims17
A system comprising:
- a conductive sampling swab comprising a non-mesh substrate;
- and
- a thermal desorber comprising a clamping assembly configured to releasably hold the conductive sampling swab, wherein the clamping assembly is configured to be electrically connected to a voltage or current source, wherein the clamping assembly is configured to move to electrically contact the conductive sampling swab,
- wherein the clamping assembly is configured to move to electrically disconnect from the conductive sampling swab, and
- wherein the thermal desorber is configured to resistively heat the conductive sampling swab to a temperature sufficient to vaporize a sample material disposed on the conductive sampling swab.
2 more elements
A method comprising:
- inserting a conductive sampling swab into a thermal desorber, wherein the conductive sampling swab comprises a non-mesh substrate;
- clamping, via a clamping assembly of the thermal desorber, the conductive sampling swab, wherein the clamping assembly is configured to be electrically connected to a voltage or current source, wherein the clamping assembly is configured to move to electrically contact the conductive sampling swab, wherein the clamping assembly is configured to move to electrically disconnect from the conductive sampling swab;
- and
- resistively heating the conductive sampling swab, via a current applied through the conductive sampling swab, to a temperature sufficient to vaporize a sample material disposed on the conductive sampling swab.
1 more element
Dependencies are inferred from the claim text.