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US 7,458,283 B2Granted
Article scanner
AssigneeSmiths Detection Inc.
InventorsSabatino Nacson, Duncan Gibbons
Life of this patent
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Abstract
A CTD and method of using a CTD for automatic sampling and analysis of target analytes, such as explosive materials, chemical warfare agents, and narcotics present on documents or other articles is provided. The CTD comprises an article processing mechanism, a swabbing medium, a thermal desorber, and a spectrometer.
Claims34
An contact trace detector, comprising:
- an article processing mechanism for moving an article through the detector,
- a swabbing medium for collecting an analyte from the article,
- a thermal desorber for desorbing the analyte from the swabbing medium, and
- a spectrometer with an inlet for receiving the analyte.
1 more element
A method of testing an article, comprising:
- inserting an article into a detector, the article having a first surface and a second surface;
- contacting a first surface of the article with a first swabbing medium while the article is present in the detector;
- transferring an analyte to the swabbing medium;
- and
- analyzing the analyte.
2 more elements
A method of testing an article, comprising:
- (a) inserting an article into a detector, the article having a first surface and a second surface;
- (b) contacting a first surface of the article with a first swabbing medium;
- (b) transferring an analyte to the swabbing medium;
- and
- (c) analyzing the analyte,
- wherein the swabbing medium comprises a steel woven mesh.
3 more elements
A method of testing an article, comprising:
- (a) inserting an article into a detector, the article having a first surface and a second surface;
- (b) contacting a first surface of the article with a first swabbing medium;
- (c) transferring an analyte to the swabbing medium;
- and
- (d) desorbing the analyte on the swabbing medium;
- and
- (e) moving the swabbing medium on a feed wheel after desorption;
- and
- (f) analyzing the analyte.
6 more elements
Dependencies are inferred from the claim text.