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Dr. Byrdwell is a Research Chemist at the Food Composition and Methods Laboratory, part of the Beltsville Human Nutrition Research Center, part of the Agricultural Research Service, the research branch of the U.S. Department of Agriculture in Beltsville, Maryland |
My research focuses on applying
the latest technology in Liquid Chromatography/ Mass Spectrometry to questions
of biological and agricultural importance. The primary focus of my research
is analysis of fats and the fat soluble Vitamin D in foods
and in agricultural products using high performance liquid chromatography-mass spectrometry (HPLC-MS).
Dr. Byrdwell utilizes three mass spectrometers interfaced to liquid chromatographic systems via atmospheric pressure ionization interfaces. We have Three techniqes in use: Atmospheric Pressure Chemical Ionization Mass Spectrometry (APCI-MS), Atmospheric Pressure Photo Ionization MS, APPI-MS, and Electrospray Ionization MS, ESI-MS. Dr. Byrdwell was the first author to report simultaneous use of two mass spectrometers employing APCI-MS and ESI-MS in a "Dual Parallel Mass Spectrometer" arrangement for analysis of lipids. Studies are underway to expand this initial work. 
It's Here! It's Here! Dr. Byrdwell's NEW book www.MendingTheSacredHoop.com!  Mass Spectrometry and Related Techniques www.HPLC-MS.com! Preparation of the first report of the Unit Simulacrum as a construct for Mass Spectrometry is underway! Keep an eye out at Byrdwell.com to continue to follow developments regarding this exciting discovery! |
| Dr. Byrdwell is the subject
of biographical record in:
Who's Who in America, 57th Ed., 2003 Who's Who in America, 56th Ed., 2002 Who's Who in the World, 18th Ed., 2001 |
| Lab News! We got a Hot NEW Applied Biosystems QTrap 5500 and Agilent 1290 UHPLC with DAD! | |
| Click on pictures to enlarge them. | |
| I now have an ABI QTrap 5500 with Agilent 1290 UHPLC | This is Command Central, from where I operate the Dual Parallel Mass Spectrometers |
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From this data station, I control the QTrap 5500 Linear Ion Trap/Tandem Sector Quadrupole Hybrid Mass Spectrometer, the TSQ 7000 Tandem Sector Quadrupole Mass Spectrometer, the Agilent 1290 Liquid Chromatograph with Autosampler and Diode Array Detector (DAD), the Agilent 1200 Liquid Chromatograph with Autosampler & Diode Array Detector & Evaporative Light Scattering Detector (ELSD) & Corona Charged Aerosol Detector (CAD), and I control the LCQ Deca XP ion trap mass spectrometer and the Thermo Separation Products Liquid Chromatograph with Autosampler & Photodiode Array Detector, which are pictured below. |
| Here is the LCQ Deca XP Ion Trap Mass Spectrometer and Thermo Separation Products SpectraSystem HPLC |
With just a flip of a switch, I can reconfigure the Dual Parallel Mass Spectrometer configuration! |
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or the Agilent Infinity 1290 UHPLC can be used to start either the Applied Biosystems QTrap 5500 or the ThermoElectron TSQ 7000 and LCQ Deca XP. |
| Below are the Agilent 1200 High Performance Liquid Chromatograph with auxiliary Corona Charged Aerosol Detector, and the ThermoElectron TSQ 7000 Tandem Sector Quadrupole Mass Spectrometer. | |
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| Here is the good old TSQ700 Liquid Chromatograph/Mass Spectrometer that I've had for so long! Still running like a Champ! |
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| Here is the TSQ700 Gas Chromatograph/ Mass Spectrometer | |
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with Dual Parallel Mass Spectrometry (LC2/MS2) |
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| For a Complete List of Publications, See: http://www.byrdwell.com/publications |
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