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:
- Issue Date:
- 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):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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.
Web.
Denton, M. Bonner, & Sperline, Roger P.. Sensitive ion detection device and method for analysis of compounds as vapors in gases. United States.
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.
@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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Works referenced in this record:
An analysis of the current in a point-to-plane corona discharge and the effect of a back-ionising layer on the plane
journal, December 1985
- Cross, J. A.
- Journal of Physics D: Applied Physics, Vol. 18, Issue 12
Ion mobility spectrometry
journal, December 1990
- Hill, Herbert H.; Siems, William F.; St. Louis, Robert H.
- Analytical Chemistry, Vol. 62, Issue 23
Electrical characteristics of a corona discharge reactor of multipoint-to-plane geometry
journal, December 1995
- Jaworek, A.; Krupa, A.
- Czechoslovak Journal of Physics, Vol. 45, Issue 12
Current density distribution measurement of negative point-to-plane corona discharge
journal, January 1998
- Madani, M. R.; Miller, T. A.
- IEEE Transactions on Instrumentation and Measurement, Vol. 47, Issue 4
Effects of interfacial interaction potential on the sublimation rates of TNT films on a silica surface examined by QCM and AFM techniques
journal, April 2003
- Mu, R.; Ueda, A.; Liu, Y. C.
- Surface Science, Vol. 530, Issue 1-2, p. L293-L296
Electrospray Ionization High-Resolution Ion Mobility Spectrometry−Mass Spectrometry
journal, December 1998
- Wu, Ching; Siems, William F.; Asbury, G. Reid
- Analytical Chemistry, Vol. 70, Issue 23
Ultrafast Differential Ion Mobility Spectrometry at Extreme Electric Fields in Multichannel Microchips
journal, August 2009
- Shvartsburg, Alexandre A.; Smith, Richard D.; Wilks, Ashley
- Analytical Chemistry, Vol. 81, Issue 15
Ultrafast Differential Ion Mobility Spectrometry at Extreme Electric Fields Coupled to Mass Spectrometry
journal, October 2009
- Shvartsburg, Alexandre A.; Tang, Keqi; Smith, Richard D.
- Analytical Chemistry, Vol. 81, Issue 19
Accelerated High-Resolution Differential Ion Mobility Separations Using Hydrogen
journal, December 2011
- Shvartsburg, Alexandre A.; Smith, Richard D.
- Analytical Chemistry, Vol. 83, Issue 23