PREVIOUS POSITIONS

1977-2006   Senior technical staff member, ExxonMobil Research and Engineering 
            Co., Clinton, NJ/Baton Rouge, LA
2006	    Chair-Elect, ACS Baton Rouge Section (resigned due to job change)
2002-2004   Board Member-at-Large, Measurements and Standards, American 
            Society for Mass Spctrometry (ASMS)
2001-2004   Member, International Activities Committee, American Chemical 
            Society (ACS)
2002        Presider, "Liquid Chromatography/Mass Spectrometry Applications",
            Pittcon 2002, New Orleans, LA,March 17-22.
1994-2003   Chair, Hydrocarbon and Chemical Processes Interest Group, 
            American Society for Mass Spectrometry.	
1991-2001   Adjunct Professor Department of Chemical engineering, Chemistry 
            and Environmental Science, New Jersey Institute of Technology 
            (NJIT), Newark, NJ
2001        Chair, Symposium on "Hydrocarbon and Chemcial Processes - Future 
            Challenges", American Society for Mass Spectrometry (ASMS), 
            Chicago, IL, May 27-30, 2001.
2001        Co-chair, Symposium on "Kinetics and Mechanism of Petroleum 
            Processes", 222th ACS National Meeting, Chicago, IL, 
            August 26-30, 2001.
1995-2001   Alternate Councilor, ACS North Jersey Section
1996-2000   Associate, ACS International Activities Committee 
2000        Co-Chair, Energy and Petrochemical Session, 
            48th ASMS Conference, Long Beach,  CA
1999/2000   Member, ASMS Nomination Committee
2000        Member, ASMS Program Committee.
2000        Chair, Symposium on "Hydrocarbon Characterization", 
            220th ACS National Meeting, Washington, D. C.
1991-1999   Adjunct Professor Department of Chemical engineering, Chemistry
            and Environmental Science, New Jersey Institute of Technology
            (NJIT), Newark, NJ
1999/2000   President, Chinese American Society for Mass Spectrometry
1999        Chair, Contributed Session of "Gas Chromatographic Techniques:
            Applications to Petroleum and Refinery Products", PITTCON '99, 
            Orlando, Florida, March 7-12, 1999.
1998        Co-Chair, ACS Symposium on "Chemistry of Diesel Fuel",
            216th American Chemical Society National Meeting, Boston, MA, 
            August 23-27, 1998. 
1998        Chair, Symposium on "Analytical Chemistry in the Petroleum
            Industry", Pittcon 98 (Pittsburgh Conference), New Orleans LA,
            March 1-5, 1998.
1997-1999   President, Chinese American Society for Mass Spectrometrists.
1997/1998   President, Chinese American Chemical Society.
1995/1996   President-Elect, Chinese American Chemical Society.
1997        Chair, "Energy and Fuels" session, 45th ASMS Conference,
            Palm Springs, California.
1994        Chair, "Energy and Fuels" session, 42nd ASMS Conference,
            Chicago, Illinois.
1993-1994   Chairman, North Jersey ACS Mass Spectrometry Topical Group.
1992-1993   Chairman-Elect, North Jersey ACS Mass Spectrometry Topical
            Group
1992-1994   Chairman, Tristate Chapter (New York, New Jersey and
            Connecticut), Chinese American Chemical Society.
1992	    Chairman, "Mass Spectrometry of Buckyballs" section,
            Eastern Analytical Symposium, Somerset, NJ.
1992	    Chairman, Thomas Aczel Memorial Symposium on Petroleum
            Mass Spectrometry at ASMS Conference, Washington, D.C.
1986-1988   Principal, Somerset 4 H Chinese School, Bridgewater, New
            Jersey.
1971-1972   President, Chinese Student Association, University of
            Kentucky.