Sensitive ion detection device and method for analysis of compounds as vapors in gases

Denton, M. Bonner; Sperline, Roger P.

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Title: Sensitive ion detection device and method for analysis of compounds as vapors in gases

Abstract

An ion mobility spectrometer (IMS) for the detection of trace gaseous molecular compounds dissolved or suspended in a carrier gas, particularly in ambient air, without preconcentration or the trapping of analyte particles. The IMS of the invention comprises an ionization volume of greater than 5 cm.sup.3 and preferably greater than 100 cm.sup.3. The larger size ionizers of this invention enable analysis of trace (<1 ppb) of sample compounds in the gas phase. To facilitate efficient ion motion through the large volume ionization and reaction regions of the IMS, an electric field gradient can be provided in the ionization region or in both the ionization and reaction regions. The systems can be implemented with radioactive ionization sources, corona discharge ion sources or ions can be formed by photoionization. In specific embodiments, particularly when the sample gas is ambient air, the sample gas is heater prior to entry into the instrument, the instrument is run at temperatures above ambient, and the instrument can be heated by contact with heated sample gas exiting the instrument.

Inventors:: Denton, M. Bonner; Sperline, Roger P.

Issue Date:: 2015-09-15

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1214596

Patent Number(s):: 9134272

Application Number:: 14/046,447

Assignee:: The Arizona Board of Regents on behalf of the University of Arizona (Phoenix, AZ)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N27/622 - {separating and identifying ionized molecules based on their mobility in a carrier gas, i.e. ion mobility spectrometry

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J49/02 - Details
H01J49/10 - Ion sources

Show less

DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Oct 04

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats


                    Denton, M. Bonner, and Sperline, Roger P. Sensitive ion detection device and method for analysis of compounds as vapors in gases.  United States: N. p., 2015. 
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                    Denton, M. Bonner, & Sperline, Roger P. Sensitive ion detection device and method for analysis of compounds as vapors in gases.  United States.

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                    Denton, M. Bonner, and Sperline, Roger P. Tue .  
        "Sensitive ion detection device and method for analysis of compounds as vapors in gases".  United States.  https://www.osti.gov/servlets/purl/1214596.

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@article{osti_1214596,

  title        = {Sensitive ion detection device and method for analysis of compounds as vapors in gases},

  author       = {Denton, M. Bonner and Sperline, Roger P.},

  abstractNote = {An ion mobility spectrometer (IMS) for the detection of trace gaseous molecular compounds dissolved or suspended in a carrier gas, particularly in ambient air, without preconcentration or the trapping of analyte particles. The IMS of the invention comprises an ionization volume of greater than 5 cm.sup.3 and preferably greater than 100 cm.sup.3. The larger size ionizers of this invention enable analysis of trace (<1 ppb) of sample compounds in the gas phase. To facilitate efficient ion motion through the large volume ionization and reaction regions of the IMS, an electric field gradient can be provided in the ionization region or in both the ionization and reaction regions. The systems can be implemented with radioactive ionization sources, corona discharge ion sources or ions can be formed by photoionization. In specific embodiments, particularly when the sample gas is ambient air, the sample gas is heater prior to entry into the instrument, the instrument is run at temperatures above ambient, and the instrument can be heated by contact with heated sample gas exiting the instrument.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2015},

  month        = {9}

}

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