CA2436256A1 - Ion mobility spectrometers with improved resolution - Google Patents

Ion mobility spectrometers with improved resolution Download PDF

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Publication number
CA2436256A1
CA2436256A1 CA002436256A CA2436256A CA2436256A1 CA 2436256 A1 CA2436256 A1 CA 2436256A1 CA 002436256 A CA002436256 A CA 002436256A CA 2436256 A CA2436256 A CA 2436256A CA 2436256 A1 CA2436256 A1 CA 2436256A1
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CA
Canada
Prior art keywords
ion mobility
improved resolution
mobility spectrometers
interest
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
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CA002436256A
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French (fr)
Other versions
CA2436256C (en
Inventor
Anthony Jenkins
William J. Mcgann
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Smiths Detection Inc
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Individual
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Publication of CA2436256A1 publication Critical patent/CA2436256A1/en
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Publication of CA2436256C publication Critical patent/CA2436256C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/622—Ion mobility spectrometry

Abstract

An apparatus is provided for detecting whether substances of interest a re present in a sample of air. The apparatus includes a detector, such as an io n trap mobility spectrometer. The detector is operated at a high drift voltage and then is switched to a low drift voltage. Spectra are collected at the high and low field strengths and are compared with standard spectra at those strengths to determine whether materials of interest are present.
CA002436256A 2002-07-31 2003-07-30 Ion mobility spectrometers with improved resolution Expired - Fee Related CA2436256C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40019202P 2002-07-31 2002-07-31
US60/400,192 2002-07-31

Publications (2)

Publication Number Publication Date
CA2436256A1 true CA2436256A1 (en) 2004-01-31
CA2436256C CA2436256C (en) 2007-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002436256A Expired - Fee Related CA2436256C (en) 2002-07-31 2003-07-30 Ion mobility spectrometers with improved resolution

Country Status (4)

Country Link
US (1) US6831273B2 (en)
CA (1) CA2436256C (en)
DE (1) DE10335156A1 (en)
GB (1) GB2393849B (en)

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Also Published As

Publication number Publication date
CA2436256C (en) 2007-06-26
US20040056191A1 (en) 2004-03-25
GB0317946D0 (en) 2003-09-03
GB2393849B (en) 2006-04-19
DE10335156A1 (en) 2004-03-11
GB2393849A (en) 2004-04-07
US6831273B2 (en) 2004-12-14

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