Invention Grant
- Patent Title: Chemical calibration method and system
- Patent Title (中): 化学校准方法和系统
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Application No.: US12006246Application Date: 2007-12-31
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Publication No.: US07709788B2Publication Date: 2010-05-04
- Inventor: Edward Geraghty , Vladimir Kekukh , Stephen N. Bunker
- Applicant: Edward Geraghty , Vladimir Kekukh , Stephen N. Bunker
- Applicant Address: US MA Wilmington
- Assignee: Implant Sciences Corporation
- Current Assignee: Implant Sciences Corporation
- Current Assignee Address: US MA Wilmington
- Agency: Muirhead and Saturnelli, LLC
- Main IPC: B01D59/44
- IPC: B01D59/44

Abstract:
An explosive and narcotics detection system using an ion mobility spectrometer detects the presence of vapor or trace particles of target chemicals. The calibration of the spectrometer depends in part on the stability of a calibrant chemical that may be periodically injected together with sample gas into the ionization region of the spectrometer. The calibrant chemical produces a signal with a drift time that is known relative to target chemicals and may be used to calibrate the expected target chemical drift times. A new calibrant chemical, 5-nitrovanillin, is disclosed for this purpose.
Public/Granted literature
- US20090166524A1 Chemical calibration method and system Public/Granted day:2009-07-02
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