Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Barry R. Williams"'
Autor:
Barry R. Williams, Raymond Anthony Martino, Charles E. Davidson, Sung H. Lim, Gary K. Kilper, Alan C. Samuels, Ronald W. Miles, Paul A. Rhodes, Aleksandr E. Miklos, Peter A. Emanuel, Melissa M. Dixon, Melissa S. Hulet
Publikováno v:
ACS sensors. 5(4)
We report the successful use of colorimetric arrays to identify chemical warfare agents (CWAs). Methods were developed to interpret and analyze a 73-indicator array with an entirely automated workflow. Using a cross-validated first-nearest-neighbor a
Publikováno v:
Journal of Chemical & Engineering Data. 59:2649-2659
Triethyl phosphate (TEPO, CAS No. 78-40-0), tri-n-propyl phosphate (TPPO, CAS No. 513-08-6), and diethyl malonate (DEM, CAS No. 105-53-3) are of considerable interest to the chemical defense community as nontoxic simulants for toxic chemical warfare
Publikováno v:
Journal of Chemical & Engineering Data. 58:1679-1684
The vapor pressures of three 2-dialkyl aminoethanethiol compounds, 2-dimethyl aminoethanethiol (DMA), 2-diethyl aminoethanethiol (DEA), and 2-diisopropyl aminoethanethiol (DIA), have been determined using complementary methods that enable data collec
Autor:
Christian Pfluegl, Peili Chen, Mark F. Witinski, Biao Li, Rhea J. Clewes, Kalyani Krishnamurthy, Barry R. Williams, Romain Blanchard, Laurent Diehl, Chris R. Howle, Greg Vander Rhodes, Masud Azimi, Gokhan Ulu, Linda Lee, Brandt C. Pein, Daryoosh Vakhshoori
Publikováno v:
Optics Express. 26:12159
This article presents new spectroscopic results in standoff chemical detection that are enabled by monolithic arrays of Distributed Feedback (DFB) Quantum Cascade Lasers (QCLs), with each array element at a slightly different wavelength than its neig
Publikováno v:
Journal of Chemical & Engineering Data. 54:60-63
The vapor pressures of low-volatility chemical warfare (CW) agents, their byproducts and degradants, and simulants are important physical data that are needed for accurate vapor generation, for fil...
Autor:
Ronald W. Miles, Barry R. Williams, Alan C. Samuels, Changjiang Zhu, Avishai Ben-David, Melissa S Hulet
Publikováno v:
Analytical Chemistry. 78:408-415
Diffuse reflection data are presented for ethyl methylphosphonate in a fine Utah dirt sample as a model system for organophosphate-contaminated soil. The data revealed a chemometric artifact when the spectra were represented in Kubelka-Munk units tha
Publikováno v:
Spectroscopy Letters. 33:795-819
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,
Autor:
Barry R. Williams, George W. Wagner, John R. Stuff, William R. Creasy, Vikki D. Henderson, Mark D. Brickhouse, Joseph W. Hovanec, Philip W. Bartram, Theresa R. Connell, Kevin M. Morrissey
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1267-1272
Attempts at decontaminating nerve agents VX {O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate} and GD (pinacolyl methylphosphonofluoridate) with gaseous ozone are described. VX reacts like a tertiary amine with oxidation occurring at carb
Autor:
William R. Creasy, H. Dupont Durst, John R. Stuff, Mark D. Brickhouse, Jeffrey Mays, Richard L. Cheicante, Kevin M. Morrissey, Jill L. Ruth, Richard J. O'Connor, Barry R. Williams
Publikováno v:
Environmental Science & Technology. 33:2157-2162
Decontamination waste from chemical weapons (CW) agents has been stored in ton containers on Johnston Atoll since 1971. The waste was recently sampled and analyzed to determine its chemical composition in preparation for disposal. Due to the range of
Publikováno v:
Analytical Letters. 31:1429-1444
Inspection protocols for the Chemical Weapons Treaty, which went into effect on April 29, 1997 require on-site analytical procedures which include a comprehensive mass spectral database of hundreds of scheduled compounds. A number of these compounds