Methods of analyzing composition of aerosol particles
Abstract
An aerosol particle analyzer includes a laser ablation chamber, a gas-filled conduit, and a mass spectrometer. The laser ablation chamber can be operated at a low pressure, which can be from 0.1 mTorr to 30 mTorr. The ablated ions are transferred into a gas-filled conduit. The gas-filled conduit reduces the electrical charge and the speed of ablated ions as they collide and mix with buffer gases in the gas-filled conduit. Preferably, the gas filled-conduit includes an electromagnetic multipole structure that collimates the nascent ions into a beam, which is guided into the mass spectrometer. Because the gas-filled conduit allows storage of vast quantities of the ions from the ablated particles, the ions from a single ablated particle can be analyzed multiple times and by a variety of techniques to supply statistically meaningful analysis of composition and isotope ratios.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1083195
- Patent Number(s):
- 8373119
- Application Number:
- 13/561,365
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Reilly, Peter T.A. Methods of analyzing composition of aerosol particles. United States: N. p., 2013.
Web.
Reilly, Peter T.A. Methods of analyzing composition of aerosol particles. United States.
Reilly, Peter T.A. Tue .
"Methods of analyzing composition of aerosol particles". United States. https://www.osti.gov/servlets/purl/1083195.
@article{osti_1083195,
title = {Methods of analyzing composition of aerosol particles},
author = {Reilly, Peter T.A.},
abstractNote = {An aerosol particle analyzer includes a laser ablation chamber, a gas-filled conduit, and a mass spectrometer. The laser ablation chamber can be operated at a low pressure, which can be from 0.1 mTorr to 30 mTorr. The ablated ions are transferred into a gas-filled conduit. The gas-filled conduit reduces the electrical charge and the speed of ablated ions as they collide and mix with buffer gases in the gas-filled conduit. Preferably, the gas filled-conduit includes an electromagnetic multipole structure that collimates the nascent ions into a beam, which is guided into the mass spectrometer. Because the gas-filled conduit allows storage of vast quantities of the ions from the ablated particles, the ions from a single ablated particle can be analyzed multiple times and by a variety of techniques to supply statistically meaningful analysis of composition and isotope ratios.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {2}
}
Works referenced in this record:
Chemical Characterization of Individual, Airborne Sub-10-nm Particles and Molecules
journal, March 2006
- Wang, Shenyi; Zordan, Christopher A.; Johnston, Murray V.
- Analytical Chemistry, Vol. 78, Issue 6
Measurement of Individual Particle Atomic Composition by Aerosol Mass Spectrometry
journal, November 2001
- Reents, William D.; Schabel, Michael J.
- Analytical Chemistry, Vol. 73, Issue 22
A Design Tool for Aerodynamic Lens Systems
journal, June 2006
- Wang, Xiaoliang; McMurry, Peter H.
- Aerosol Science and Technology, Vol. 40, Issue 5
Simultaneous Elemental Composition and Size Distributions of Submicron Particles in Real Time Using Laser Atomization Ionization Mass Spectrometry
journal, July 2000
- Reents, William D.; Ge, Zhaozhu
- Aerosol Science and Technology, Vol. 33, Issue 1-2
Determination of the Size Distribution of Polydisperse Nanoparticles with Single-Particle Mass Spectrometry: The Role of Ion Kinetic Energy
journal, February 2005
- Lee, D.; Park, K.; Zachariah, M. R.
- Aerosol Science and Technology, Vol. 39, Issue 2