Grantee Research Project Results

2008 Progress Report: Ion Mobility Analysis of Particulate Matter and Gas Phase Precursors

EPA Grant Number: R832836
Title: Ion Mobility Analysis of Particulate Matter and Gas Phase Precursors
Investigators: Wexler, Anthony S.
Institution: University of California - Davis
EPA Project Officer: Chung, Serena
Project Period: March 6, 2006 through March 5, 2009 (Extended to March 5, 2011)
Project Period Covered by this Report: March 6, 2008 through March 5,2009
Project Amount: $372,168
RFA: Continuous Measurement Methods for Particulate Matter Composition (2005) RFA Text | Recipients Lists
Research Category: Particulate Matter , Air Quality and Air Toxics , Air

Objective:

A new cost-effective instrument is capable of analyzing the semi-volatile organic and inorganic gas phase precursors.

Progress Summary:

Dr. Zhang left the project and took a job with the California Air Resources Board before this year commenced. As a result, no direct progress on the research was made this year. Via funding from NSF, we are supporting the development of a better electrometer array that will be used for this project and others.

Future Activities:

In our last project report, our plan was that Dr. Zhao would continue the work of Dr. Zhang; however, since then, we have hired Dr. Sonya Collier to continue the project, starting August 1. Dr. Collier is completing her Ph.D. with professor Denis Phares at USC who also is working on ion mobility analysis of particulate air pollutants, so Sonya will come to us uniquely qualified to continue this work. Our plan is to merge our ion mobility cell with Dr. Phares' mass spectrometer to learn in more detail how ions are transported in our ion mobility cell. After that is understood and the NSF electrometer work is complete, the ion mobility cell and electrometer array will be combined to build the originally proposed instrument.

Journal Articles on this Report : 1 Displayed | Download in RIS Format

Publications Views
Other project views:	All 5 publications	1 publications in selected types	All 1 journal articles

Publications
Type	Citation	Project	Document Sources
Journal Article	Zhang M, Wexler AS. Cross flow ion mobility spectrometry: theory and initial prototype testing. International Journal of Mass Spectrometry 2006;258(1-3):13-20.	R832836 (2006) R832836 (2007) R832836 (2008)	Full-text: Science Direct Exit Abstract: Science Direct Exit Other: Science Direct PDF Exit

Supplemental Keywords:

, Air, Scientific Discipline, Environmental Chemistry, Engineering, Chemistry, & Physics, Environmental Monitoring, aerosol particles, air sampling, air quality field measurements, chemical composition, chemical detection techniques, monitoring, field monitoring, atmospheric aerosols, particulate matter chemistry, atmospheric measurement

Relevant Websites:

Progress and Final Reports:

Original Abstract

The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.