CA2043708A1 - Method and apparatus for improving the specificity of an ion mobility spectrometer utilizing sulfur dioxide dopant chemistry - Google Patents

Method and apparatus for improving the specificity of an ion mobility spectrometer utilizing sulfur dioxide dopant chemistry

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Publication number
CA2043708A1
CA2043708A1 CA 2043708 CA2043708A CA2043708A1 CA 2043708 A1 CA2043708 A1 CA 2043708A1 CA 2043708 CA2043708 CA 2043708 CA 2043708 A CA2043708 A CA 2043708A CA 2043708 A1 CA2043708 A1 CA 2043708A1
Authority
CA
Canada
Prior art keywords
sulfur dioxide
ion mobility
mobility spectrometer
specificity
improving
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
CA 2043708
Other languages
French (fr)
Other versions
CA2043708C (en
Inventor
Allan Thomson Bacon, Jr.
Julio Antonio Reategui
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.)
Environmental Technologies Group Inc
Original Assignee
Environmental Technologies Group Inc
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
Priority claimed from US07/687,594 external-priority patent/US5095206A/en
Application filed by Environmental Technologies Group Inc filed Critical Environmental Technologies Group Inc
Publication of CA2043708A1 publication Critical patent/CA2043708A1/en
Application granted granted Critical
Publication of CA2043708C publication Critical patent/CA2043708C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

An improved ion mobility spectrometer (IMS) and method for operating the same which enables analysis of a specific acid gas analyte in a mixture of such gases when air is used as the carrier gas and the drift gas in the IMS. A controlled concentration of sulfur dioxide dopant is added to the air carrier gas stream prior to application of the carrier gas stream. In the IMS, the drift times of the ions generated from the doped air carrier gas differ from the drift times of the ions generated from the acid gas analyte, thereby enabling identification and quantification of the analyte.
CA 2043708 1990-06-01 1991-05-31 Method and apparatus for improving the specificity of an ion mobility spectrometer utilizing sulfur dioxide dopant chemistry Expired - Lifetime CA2043708C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US53770190A 1990-06-01 1990-06-01
US537,701 1990-06-01
US687,594 1991-04-17
US07/687,594 US5095206A (en) 1990-06-01 1991-04-17 Method and apparatus for improving the specificity of an ion mobility spectrometer utillizing sulfur dioxide dopant chemistry

Publications (2)

Publication Number Publication Date
CA2043708A1 true CA2043708A1 (en) 1991-12-02
CA2043708C CA2043708C (en) 2002-02-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2043708 Expired - Lifetime CA2043708C (en) 1990-06-01 1991-05-31 Method and apparatus for improving the specificity of an ion mobility spectrometer utilizing sulfur dioxide dopant chemistry

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CA (1) CA2043708C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103868979A (en) * 2012-12-12 2014-06-18 中国科学院大连化学物理研究所 Method for detecting sulfide with reducing property

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103868979A (en) * 2012-12-12 2014-06-18 中国科学院大连化学物理研究所 Method for detecting sulfide with reducing property

Also Published As

Publication number Publication date
CA2043708C (en) 2002-02-12

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Legal Events

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EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202