CA2291546A1 - Method of monitoring the status of the gas drying system in an ion mobility spectrometer - Google Patents

Method of monitoring the status of the gas drying system in an ion mobility spectrometer Download PDF

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Publication number
CA2291546A1
CA2291546A1 CA002291546A CA2291546A CA2291546A1 CA 2291546 A1 CA2291546 A1 CA 2291546A1 CA 002291546 A CA002291546 A CA 002291546A CA 2291546 A CA2291546 A CA 2291546A CA 2291546 A1 CA2291546 A1 CA 2291546A1
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CA
Canada
Prior art keywords
monitoring
clusters
mobility spectrometer
ion mobility
concentration
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
Application number
CA002291546A
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French (fr)
Other versions
CA2291546C (en
Inventor
Ludmila Danylewych-May
Frank Kuja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smiths Detection Toronto Ltd
Original Assignee
Barringer Research Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Barringer Research Ltd filed Critical Barringer Research Ltd
Publication of CA2291546A1 publication Critical patent/CA2291546A1/en
Application granted granted Critical
Publication of CA2291546C publication Critical patent/CA2291546C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content

Abstract

A method is provided for monitoring the concentration of water vapour in an ion mobility spectrometer which measures the drift time of a selected ion, having a tendency to form clusters of water molecules. As these clusters are formed, the drift time of the ion varies, and by monitoring this variation in drift time, a measure of the concentration of water vapour can be made. If this exceeds a certain level, a warning can be given and/or the instrument disabled. Preferably, a comparison is made between two different ions, one having at least a moderate tendency to form clusters with water molecules, and the other having a weak tendency to form such clusters. By comparing the two drift times, a relatively accurate determination of water concentration can be made, and this can automatically allow for variations of drift times due to other causes.
CA002291546A 1999-12-02 1999-12-03 Method of monitoring the status of the gas drying system in an ion mobility spectrometer Expired - Lifetime CA2291546C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/453,075 US6291821B1 (en) 1999-12-02 1999-12-02 Method of monitoring the status of the gas drying system in an ion mobility spectrometer
US09/453,075 1999-12-02

Publications (2)

Publication Number Publication Date
CA2291546A1 true CA2291546A1 (en) 2001-06-02
CA2291546C CA2291546C (en) 2008-10-21

Family

ID=23799119

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002291546A Expired - Lifetime CA2291546C (en) 1999-12-02 1999-12-03 Method of monitoring the status of the gas drying system in an ion mobility spectrometer

Country Status (2)

Country Link
US (1) US6291821B1 (en)
CA (1) CA2291546C (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6627878B1 (en) * 2000-07-11 2003-09-30 The United States Of America As Represented By The Secretary Of The Navy (Chemical agent) point detection system (IPDS) employing dual ion mobility spectrometers
ITMI20011193A1 (en) * 2001-06-06 2002-12-06 Getters Spa METHOD FOR MEASUREMENT USING IONIC MOBILITY SPECTROSCOPY OF THE CONCENTRATION OF WATER IN ARGON, HYDROGEN, NITROGEN AND HELIUM
US6825462B2 (en) * 2002-02-22 2004-11-30 Agilent Technologies, Inc. Apparatus and method for ion production enhancement
JP2006515415A (en) * 2002-07-22 2006-05-25 サエス ゲッターズ ソチエタ ペル アツィオニ Method for performing ion mobility spectrometry
WO2005050159A2 (en) * 2003-10-14 2005-06-02 Washington State University Research Foundation Ion mobility spectrometry method and apparatus
US20070187591A1 (en) * 2004-06-10 2007-08-16 Leslie Bromberg Plasma ion mobility spectrometer
US7361206B1 (en) 2004-09-07 2008-04-22 United States Of America As Represented By The Secretary Of The Navy Apparatus and method for water vapor removal in an ion mobility spectrometer
JP2006322899A (en) * 2005-05-20 2006-11-30 Hitachi Ltd Gas-monitoring apparatus
WO2006127974A1 (en) * 2005-05-24 2006-11-30 Sionex Corporation Combined mass and differential mobility spectrometry
US20090078862A1 (en) * 2007-07-30 2009-03-26 Dan Rodier Ion mobility spectrometry analyzer for detecting peroxides
US7709788B2 (en) * 2007-12-31 2010-05-04 Implant Sciences Corporation Chemical calibration method and system
CA2816349C (en) * 2010-10-27 2020-01-21 Reno F. Debono Background peak monitoring for ion mobility spectrometry
CA2837228C (en) * 2011-05-27 2019-10-22 Msdetection Corp. Non-contact trace chemical screening
GB2519007B (en) * 2012-07-31 2018-09-19 Leco Corp Ion mobility spectrometer with high throughput
GB201408593D0 (en) * 2014-05-14 2014-06-25 Smiths Detection Watford Ltd Chemical calibration process, system and device
GB201420939D0 (en) * 2014-11-25 2015-01-07 Smiths Detection Watford Ltd Process and system for facilitating chemical identification in a detector
GB201701604D0 (en) * 2017-01-31 2017-03-15 Smiths Detection-Watford Ltd Moisture control calibration method for IMS
US10782265B2 (en) * 2018-03-30 2020-09-22 Sharp Kabushiki Kaisha Analysis apparatus
US11313833B2 (en) * 2018-08-31 2022-04-26 Leidos Security Detection & Automation, Inc. Chemical trace detection system
CN114858902A (en) * 2021-02-04 2022-08-05 中国科学院大连化学物理研究所 Method for rapidly detecting sevoflurane based on ion mobility spectrometry

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071771A (en) * 1989-12-04 1991-12-10 Forintek Canada Corporation Identification of wood species
US5510268A (en) * 1992-12-17 1996-04-23 Doering; Hans-Ruediger Method and device for detecting substances in an ambient substance, in particular for detecting chemical warfare agents
US5405781A (en) * 1993-09-21 1995-04-11 Barringer Research Limited Ion mobility spectrometer apparatus and method, incorporating air drying
US5457316A (en) * 1994-12-23 1995-10-10 Pcp, Inc. Method and apparatus for the detection and identification of trace gases
US5796099A (en) * 1995-06-07 1998-08-18 Barringer Instruments Ltd. Pressure based calibration correction of an ion mobility spectrometer

Also Published As

Publication number Publication date
CA2291546C (en) 2008-10-21
US6291821B1 (en) 2001-09-18

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Effective date: 20191203