DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
;
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):
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
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}
}

Works referenced in this record:

Magnetic fixture assembly
patent, October 1988


Ion source for quadrupole mass spectrometer
patent, October 1992


Ion mobility spectrometers
patent, April 1993


Selective detection with high speed gas chromatography
patent, May 1994


Explosive detection screening system
patent, December 1996


Mass spectrometer
patent, September 2004


Mass spectrometer
patent, June 2005


Mass spectrometer
patent, January 2006


Remote reagent chemical ionization source
patent, August 2006


Remote reagent ion generator
patent, August 2009


Compact gas chromatography and ion mobility based sample analysis systems, methods, and devices
patent, October 2009


Ion mobility spectrometry
journal, December 1990


Electrical characteristics of a corona discharge reactor of multipoint-to-plane geometry
journal, December 1995


Current density distribution measurement of negative point-to-plane corona discharge
journal, January 1998


Electrospray Ionization High-Resolution Ion Mobility Spectrometry−Mass Spectrometry
journal, December 1998


Ultrafast Differential Ion Mobility Spectrometry at Extreme Electric Fields in Multichannel Microchips
journal, August 2009


Ultrafast Differential Ion Mobility Spectrometry at Extreme Electric Fields Coupled to Mass Spectrometry
journal, October 2009


Accelerated High-Resolution Differential Ion Mobility Separations Using Hydrogen
journal, December 2011