David J. McGarvey
Science Applications International Corporation
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Featured researches published by David J. McGarvey.
Journal of Hazardous Materials | 2009
Daniel Waysbort; David J. McGarvey; William R. Creasy; Kevin M. Morrissey; David M. Hendrickson; H. Dupont Durst
A decontamination system for chemical warfare agents was developed and tested that combines a liquid decontamination reagent solution with solid sorbent particles. The components have fewer safety and environmental concerns than traditional chlorine bleach-based products or highly caustic solutions. The liquid solution, based on Decon Greentrade mark, has hydrogen peroxide and a carbonate buffer as active ingredients. The best solid sorbents were found to be a copolymer of ethylene glycol dimethacrylate and n-lauryl methacrylate (Polytrap 6603 Adsorber); or an allyl methacrylate cross-linked polymer (Poly-Pore E200 Adsorber). These solids are human and environmentally friendly and are commonly used in cosmetics. The decontaminant system was tested for reactivity with pinacolyl methylphosphonofluoridate (Soman, GD), bis(2-chloroethyl)sulfide (Mustard, HD), and S-(2-diisopropylaminoethyl) O-ethyl methylphosphonothioate (VX) by using NMR Spectroscopy. Molybdate ion (MoO(4)(-2)) was added to the decontaminant to catalyze the oxidation of HD. The molybdate ion provided a color change from pink to white when the oxidizing capacity of the system was exhausted. The decontaminant was effective for ratios of agent to decontaminant of up to 1:50 for VX (t(1/2) < or = 4 min), 1:10 for HD (t(1/2) < 2 min with molybdate), and 1:10 for GD (t(1/2) < 2 min). The vapor concentrations of GD above the dry sorbent and the sorbent with decontamination solution were measured to show that the sorbent decreased the vapor concentration of GD. The E200 sorbent had the additional advantage of absorbing aqueous decontamination solution without the addition of an organic co-solvent such as isopropanol, but the rate depended strongly on mixing for HD.
Spectroscopy Letters | 2000
David J. McGarvey; John R. Stuff; Barry R. Williams; H. Dupont Durst
Abstract Analogs of the chemical warfare agent Sarin were synthesized using a microscale technique and analyzed with a gas chromatograph equipped with a light pipe Fourier Transform infrared spectrometer. Produced as byproducts of the chemical warfare agents, a variety of related organophosphonate byproducts were often also observed. Similarities and differences among the spectra within the classes are noted, including some distinguishing characteristics of the infrared spectra not previously cited in the literature.
New Journal of Chemistry | 2008
Amitabha Mitra; David A. Atwood; Jeffrey Struss; Daniel J. Williams; Bradley J. McKinney; William R. Creasy; David J. McGarvey; H. Dupont Durst; Roderick A. Fry
Schiff base boron and aluminium bromides have been used to cleave organophosphate nerve agents and pesticides and their simulants: salben(tBu)[BBr2]2 was very effective in cleaving the VX simulants EMPPT and DEPPT and nerve agent VX; salen(tBu)AlBr was effective in cleaving the nerve agents VX and Soman and the pesticideDiazinon.
Industrial & Engineering Chemistry Research | 2009
Lev Bromberg; Heidi Schreuder-Gibson; William R. Creasy; David J. McGarvey; Roderick A. Fry; T. Alan Hatton
Main Group Chemistry | 2010
William R. Creasy; Roderick A. Fry; David J. McGarvey; David M. Hendrickson; H. D. Durst
Archive | 2003
William R. Creasy; David J. McGarvey; Jeffrey S. Rice; Richard J. O'Connor; H. D. Durst
Archive | 2005
Richard J. O'Connor; Mark D. Brickhouse; Jeffrey S. Rice; H. D. Durst; David J. McGarvey
Archive | 2008
Daniel Waysbort; William R. Creasy; H. Dupont Durst; David J. McGarvey
Archive | 2006
Daniel J. Williams; Vicky L. Bevilacqua; William R. Creasy; David J. McGarvey; Jeffrey S. Rice; Christopher L. De Leon; Melanie J. Sanders; Bradley J. McKineey; H. D. Durst
Archive | 2003
William R. Creasy; David J. McGarvey; Richard J. O'Connor; H. D. Durst