501
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Stehle R, Schulreich C, Wellert S, Gäb J, Blum MM, Kehe K, Richardt A, Lapp A, Hellweg T. An enzyme containing microemulsion based on skin friendly oil and surfactant as decontamination medium for organo phosphates: Phase behavior, structure, and enzyme activity. J Colloid Interface Sci 2014; 413:127-32. [DOI: 10.1016/j.jcis.2013.09.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/06/2013] [Accepted: 09/07/2013] [Indexed: 10/26/2022]
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502
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Wilmsmeyer AR, Gordon WO, Davis ED, Mantooth BA, Lalain TA, Morris JR. Multifunctional ultra-high vacuum apparatus for studies of the interactions of chemical warfare agents on complex surfaces. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:014101. [PMID: 24517783 DOI: 10.1063/1.4846656] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A fundamental understanding of the surface chemistry of chemical warfare agents is needed to fully predict the interaction of these toxic molecules with militarily relevant materials, catalysts, and environmental surfaces. For example, rules for predicting the surface chemistry of agents can be applied to the creation of next generation decontaminants, reactive coatings, and protective materials for the warfighter. Here, we describe a multifunctional ultra-high vacuum instrument for conducting comprehensive studies of the adsorption, desorption, and surface chemistry of chemical warfare agents on model and militarily relevant surfaces. The system applies reflection-absorption infrared spectroscopy, x-ray photoelectron spectroscopy, and mass spectrometry to study adsorption and surface reactions of chemical warfare agents. Several novel components have been developed to address the unique safety and sample exposure challenges that accompany the research of these toxic, often very low vapor pressure, compounds. While results of vacuum-based surface science techniques may not necessarily translate directly to environmental processes, learning about the fundamental chemistry will begin to inform scientists about the critical aspects that impact real-world applications.
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Affiliation(s)
| | - Wesley O Gordon
- Research and Technology Directorate, U.S. Army Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010, USA
| | | | - Brent A Mantooth
- Research and Technology Directorate, U.S. Army Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010, USA
| | - Teri A Lalain
- Research and Technology Directorate, U.S. Army Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010, USA
| | - John R Morris
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA
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503
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IMASAKA T, IMASAKA T. An Evaluation of the Spectral Properties of Nerve Agents for Laser Ionization Mass Spectrometry. ANAL SCI 2014; 30:1113-20. [DOI: 10.2116/analsci.30.1113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Tomoko IMASAKA
- Laboratory of Chemistry, Graduate School of Design, Kyushu University
| | - Totaro IMASAKA
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
- Division of Optoelectronics and Photonics, Center for Future Chemistry, Kyushu University
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504
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Katz MJ, Mondloch JE, Totten RK, Park JK, Nguyen ST, Farha OK, Hupp JT. Simple and Compelling Biomimetic Metal-Organic Framework Catalyst for the Degradation of Nerve Agent Simulants. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307520] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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505
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Katz MJ, Mondloch JE, Totten RK, Park JK, Nguyen ST, Farha OK, Hupp JT. Simple and compelling biomimetic metal-organic framework catalyst for the degradation of nerve agent simulants. Angew Chem Int Ed Engl 2013; 53:497-501. [PMID: 24273208 DOI: 10.1002/anie.201307520] [Citation(s) in RCA: 265] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Indexed: 11/08/2022]
Abstract
Inspired by biology, in which a bimetallic hydroxide-bridged zinc(II)-containing enzyme is utilized to catalytically hydrolyze phosphate ester bonds, the utility of a zirconium(IV)-cluster-containing metal-organic framework as a catalyst for the methanolysis and hydrolysis of phosphate-based nerve agent simulants was examined. The combination of the strong Lewis-acidic Zr(IV) and bridging hydroxide anions led to ultrafast half-lives for these solvolysis reactions. This is especially remarkable considering that the actual catalyst loading was a mere 0.045 % as a result of the surface-only catalysis observed.
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Affiliation(s)
- Michael J Katz
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113 (USA)
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506
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Wang QQ, Begum RA, Day VW, Bowman-James K. Chemical Mustard Containment Using Simple Palladium Pincer Complexes: The Influence of Molecular Walls. J Am Chem Soc 2013; 135:17193-9. [DOI: 10.1021/ja408770u] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qi-Qiang Wang
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Rowshan Ara Begum
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Victor W. Day
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Kristin Bowman-James
- Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
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507
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Orozco J, Cheng G, Vilela D, Sattayasamitsathit S, Vazquez-Duhalt R, Valdés-Ramírez G, Pak OS, Escarpa A, Kan C, Wang J. Micromotor-Based High-Yielding Fast Oxidative Detoxification of Chemical Threats. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308072] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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508
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Orozco J, Cheng G, Vilela D, Sattayasamitsathit S, Vazquez-Duhalt R, Valdés-Ramírez G, Pak OS, Escarpa A, Kan C, Wang J. Micromotor-Based High-Yielding Fast Oxidative Detoxification of Chemical Threats. Angew Chem Int Ed Engl 2013; 52:13276-9. [DOI: 10.1002/anie.201308072] [Citation(s) in RCA: 156] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Indexed: 11/11/2022]
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509
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Maza WA, Vetromile CM, Kim C, Xu X, Zhang XP, Larsen RW. Spectroscopic Investigation of the Noncovalent Association of the Nerve Agent Simulant Diisopropyl Methylphosphonate (DIMP) with Zinc(II) Porphyrins. J Phys Chem A 2013; 117:11308-15. [DOI: 10.1021/jp405976h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William A. Maza
- Department of Chemistry, University of South Florida, 4202 East
Fowler Avenue, Tampa, Florida 33620, United States
| | - Carissa M. Vetromile
- Department of Chemistry, University of South Florida, 4202 East
Fowler Avenue, Tampa, Florida 33620, United States
| | - Chungsik Kim
- Department of Chemistry, University of South Florida, 4202 East
Fowler Avenue, Tampa, Florida 33620, United States
| | - Xue Xu
- Department of Chemistry, University of South Florida, 4202 East
Fowler Avenue, Tampa, Florida 33620, United States
| | - X. Peter Zhang
- Department of Chemistry, University of South Florida, 4202 East
Fowler Avenue, Tampa, Florida 33620, United States
| | - Randy W. Larsen
- Department of Chemistry, University of South Florida, 4202 East
Fowler Avenue, Tampa, Florida 33620, United States
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510
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Gephart RT, Coneski PN, Wynne JH. Decontamination of chemical-warfare agent simulants by polymer surfaces doped with the singlet oxygen generator zinc octaphenoxyphthalocyanine. ACS APPLIED MATERIALS & INTERFACES 2013; 5:10191-10200. [PMID: 24060426 DOI: 10.1021/am402897b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Using reactive singlet oxygen (1O2), the oxidation of chemical-warfare agent (CWA) simulants has been demonstrated. The zinc octaphenoxyphthalocyanine (ZnOPPc) complex was demonstrated to be an efficient photosensitizer for converting molecular oxygen (O2) to 1O2 using broad-spectrum light (450-800 nm) from a 250 W halogen lamp. This photosensitization produces 1O2 in solution as well as within polymer matrices. The oxidation of 1-naphthol to naphthoquinone was used to monitor the rate of 1O2 generation in the commercially available polymer film Hydrothane that incorporates ZnOPPc. Using electrospinning, nanofibers of ZnOPPc in Hydrothane and polycarbonate were formed and analyzed for their ability to oxidize demeton-S, a CWA simulant, on the surface of the polymers and were found to have similar reactivity as their corresponding films. The Hydrothane films were then used to oxidize CWA simulants malathion, 2-chloroethyl phenyl sulfide (CEPS), and 2-chloroethyl ethyl sulfide (CEES). Through this oxidation process, the CWA simulants are converted into less toxic compounds, thus decontaminating the surface using only O2 from the air and light.
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Affiliation(s)
- Raymond T Gephart
- American Society for Engineering Education Postdoctoral Fellow, Naval Research Laboratory , 4555 Overlook Avenue South West, Washington, DC 20375, United States
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511
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Villalobos L, Barker Paredes JE, Cao Z, Ren T. tert-Butyl Hydroperoxide Oxygenation of Organic Sulfides Catalyzed by Diruthenium(II,III) Tetracarboxylates. Inorg Chem 2013; 52:12545-52. [PMID: 24116746 DOI: 10.1021/ic401588j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Leslie Villalobos
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Julia E. Barker Paredes
- School of Science and Technology, Georgia Gwinnett College, Lawrenceville, Georgia 30043, United States
| | - Zhi Cao
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Tong Ren
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
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512
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Chen S, Ruan Y, Brown JD, Gallucci J, Maslak V, Hadad CM, Badjić JD. Assembly of Amphiphilic Baskets into Stimuli-Responsive Vesicles. Developing a Strategy for the Detection of Organophosphorus Chemical Nerve Agents. J Am Chem Soc 2013; 135:14964-7. [PMID: 24063351 DOI: 10.1021/ja408585j] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shigui Chen
- Department of Chemistry
and
Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Yian Ruan
- Department of Chemistry
and
Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Jason D. Brown
- Department of Chemistry
and
Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Judith Gallucci
- Department of Chemistry
and
Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Veselin Maslak
- Department of Chemistry
and
Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Christopher M. Hadad
- Department of Chemistry
and
Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Jovica D. Badjić
- Department of Chemistry
and
Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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513
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Gupta B, Sharma R, Singh N, Kuca K, Acharya JR, Ghosh KK. In vitro reactivation kinetics of paraoxon- and DFP-inhibited electric eel AChE using mono- and bis-pyridinium oximes. Arch Toxicol 2013; 88:381-90. [PMID: 24065055 DOI: 10.1007/s00204-013-1136-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 09/12/2013] [Indexed: 11/25/2022]
Abstract
Oxime-assisted reactivation of organophosphate (OP)-inhibited acetylcholinesterase (AChE) is a crucial step in the post-inhibitory treatment of OP intoxication. The limited efficacy of oxime reactivators for all OP nerve agents and pesticides led to the development of various novel oximes and their thorough kinetic investigations. Hence, in the present investigation, we have tested 10 structurally different pyridinium oxime-based reactivators for their in vitro potency to reactivate paraoxon- and DFP-inhibited electric eel AChE. From structure activity relationship point of view, various oximes such as mono-quaternary (2-PAM, K100, K024) and bis-quaternary symmetric (obidoxime, TMB-4) and asymmetric (K027, K048, K203, K618, K628) oximes bearing different connecting linkers (oxybismethylene, trimethylene, propane, butane, butene, and xylene) have been studied. The observed kinetic data demonstrate that not only the position of oxime group is decisive for the increased reactivation ability of oximes, but the role of connecting linker is also significant. Oximes with aliphatic linkers are superior reactivators than the oximes with unsaturated and aromatic linkers. The optimal chain length for plausible reactivation ability for paraoxon- and DFP-inhibited AChE is 3 or 4 carbon-carbon connecting linker between prydinium rings.
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Affiliation(s)
- Bhanushree Gupta
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur, 492010, CG, India
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514
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Pangeni D, Nesterov EE. “Higher Energy Gap” Control in Fluorescent Conjugated Polymers: Turn-On Amplified Detection of Organophosphorous Agents. Macromolecules 2013. [DOI: 10.1021/ma4016278] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Deepa Pangeni
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Evgueni E. Nesterov
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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515
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Kuo LY, Baker DC, Dortignacq AK, Dill KM. Phosphonothioate Hydrolysis by Molybdocene Dichlorides: Importance of Metal Interaction with the Sulfur of the Thiolate Leaving Group. Organometallics 2013. [DOI: 10.1021/om400382u] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Louis Y. Kuo
- Department of Chemistry, Lewis & Clark College, Portland, Oregon 97219, United States
| | - Devon C. Baker
- Department of Chemistry, Lewis & Clark College, Portland, Oregon 97219, United States
| | - Adria K. Dortignacq
- Department of Chemistry, Lewis & Clark College, Portland, Oregon 97219, United States
| | - Kristina M. Dill
- Department of Chemistry, Lewis & Clark College, Portland, Oregon 97219, United States
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516
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Petrick LM, Sabach S, Dubowski Y. Degradation of VX surrogate profenofos on surfaces via in situ photo-oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:8751-8758. [PMID: 23876145 DOI: 10.1021/es4016537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Surface degradation of profenofos (PF), a VX nerve gas surrogate, was investigated using in situ photo-oxidation that combines simple instrumentation and ambient gases (O2 and H2O) as a function of exposure conditions ([O3], [OH], UV light λ = 185 and/or 254 nm, relative humidity) and PF film surface density (0.38-3.8 g m(-2)). PF film 0.38 g m(-2) fully degraded after 60 min of exposure to both 254 and 185 nm UV light in humidified air and high ozone. The observed pseudo-first-order surface reaction rate constant (kobs = 0.075 ± 0.004 min(-1)) and calculated hydroxyl concentration near the film surface ([OH]g = (9 ± 2) × 10(7) molecules cm(-3)) were used to determine the second-order rate constant for heterogeneous reaction of PF and OH (k(OH)PF = (5 ± 1) × 10(-12) cm(3) molec(-1) s(-1)). PF degradation in the absence of 185 nm light or without humidity was lower (70% or 90% degradation, respectively). With denser PF films ranging from 2.3 to 3.8 g m(-2), only 80% degradation was achieved until the PF droplet was redissolved in acetonitrile which allowed >95% PF degradation. Surface product analysis indicated limited formation of the nontoxic phosphoric acid ester but the formation of nonvolatile chemicals with increased hydrophilicity and addition of OH.
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Affiliation(s)
- Lauren M Petrick
- Technion Center of Excellence in Exposure Science and Environmental Health (TCEEH), Technion-Israel Institute of Technology , Haifa, Israel.
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517
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Bennaceur C, Afonso C, Alves S, Bossée A, Tabet JC. Instrumental dependent dissociations of n-propyl/isopropyl phosphonate isomers: evaluation of resonant and non-resonant vibrational activations. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2013; 24:1260-1270. [PMID: 23722724 DOI: 10.1007/s13361-013-0656-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 03/26/2013] [Accepted: 04/26/2013] [Indexed: 06/02/2023]
Abstract
Structural elucidation and distinction of isomeric neurotoxic agents remain a challenge. Tandem mass spectrometry can be used for this purpose in particular if a "diagnostic" product ion is observed. Different vibrational activation methods were investigated to enhance formation of diagnostic ions through consecutive processes from O,O-dialkyl alkylphosphonates. Resonant and non-resonant collisional activation and infrared multiphoton dissociation (IRMPD) were used with different mass spectrometers: a hybrid quadrupole Fourier transform ion cyclotron resonance (Qh-FTICR) and a hybrid linear ion trap-Orbitrap (LTQ/Orbitrap). Double resonance (DR) experiments, in ion cyclotron resonance (ICR) cell, were used for unambiguous determination of direct intermediate yielding diagnostic ions. From protonated n-propyl and isopropyl O-O-dialkyl-phosphonates, a diagnostic m/z 83 ion characterizes the isopropyl isomer. This ion is produced through consecutive dissociation processes. Conditions to favor its formation and observation using different activation methods were investigated. It was shown that with the LTQ, consecutive experimental steps of isolation/activation with modified trapping conditions limiting the low mass cut off (LMCO) effect were required, whereas with FT-ICR by CID and IRMPD the diagnostic ion detection was provided only by one activation step. Among the different investigated activation methods it was shown that by using low-pressure conditions or using non-resonant methods, efficient and fast differentiation of isomeric neurotoxic agents was obtained. This work constitutes a unique comparison of different activation modes for distinction of isomers showing the instrumental dependence characteristic of the consecutive processes. New insights in the dissociation pathways were obtained based on double-resonance IRMPD experiments using a FT-ICR instrument with limitation at low mass values.
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Affiliation(s)
- Chafia Bennaceur
- Université Pierre et Marie Curie, Paris 6, UMR 7201, 4 place Jussieu, Paris, 75 005, France
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518
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Oudejans L, Wyrzykowska-Ceradini B, Williams C, Tabor D, Martinez J. Impact of Environmental Conditions on the Enzymatic Decontamination of a Material Surface Contaminated with Chemical Warfare Agent Simulants. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401052z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lukas Oudejans
- National Homeland Security Research Center, Office of Research and Development,
U.S. Environmental Protection Agency, Research Triangle Park, North
Carolina 27711, United States
| | | | - Craig Williams
- ARCADIS US, Inc., Durham, North Carolina
27713, United States
| | - Dennis Tabor
- National Risk Management Research Laboratory, Office of Research and Development,
U.S. Environmental Protection Agency, Research Triangle Park, North
Carolina 27711, United States
| | - Jeanelle Martinez
- Office of Solid Waste and Emergency Response, Office of Emergency Management,
U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, United
States
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519
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Hirakawa T, Sato K, Komano A, Kishi S, Nishimoto CK, Mera N, Kugishima M, Sano T, Negishi N, Ichinose H, Seto Y, Takeuchi K. Specific properties on TiO2 photocatalysis to decompose isopropyl methylphosphonofluoridate and dimethyl methylphosphonate in Gas Phase. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.04.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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520
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Saeidian H, Babri M, Ashrafi D, Sarabadani M, Naseri MT. Fragmentation pathways of O-alkyl methylphosphonothionocyanidates in the gas phase: Toward unambiguous structural characterization of chemicals in the Chemical Weapons Convention framework. Anal Bioanal Chem 2013; 405:6749-59. [DOI: 10.1007/s00216-013-7094-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 05/02/2013] [Accepted: 05/23/2013] [Indexed: 10/26/2022]
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521
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Gupta B, Sharma R, Singh N, Karpichev Y, Satnami ML, Ghosh KK. Reactivity studies of carbon, phosphorus and sulfur-based acyl sites with tertiary oximes in gemini surfactants. J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3142] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Bhanushree Gupta
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur C.G 492010 India
| | - Rahul Sharma
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur C.G 492010 India
| | - Namrata Singh
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur C.G 492010 India
| | - Yevgen Karpichev
- L.M. Litvinenko Institute of Physical Organic and Coal Chemistry; Donetsk 83114 Ukraine
| | - Manmohan L. Satnami
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur C.G 492010 India
| | - Kallol K. Ghosh
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur C.G 492010 India
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522
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Kishi S, Hirakawa T, Sato K, Komano A, Nishimoto CK, Mera N, Kugishima M, Sano T, Negishi N, Ichinose H, Seto Y, Takeuchi K. Photocatalytic Decomposition of Ethyl S-Diisopropylaminoethyl Methylphosphonothioate (VX) by Ag and Au Metal Deposited on TiO2 in Aqueous Phase. CHEM LETT 2013. [DOI: 10.1246/cl.130015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | - Tsutomu Hirakawa
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Keita Sato
- National Research Institute of Police Science (NRIPS)
| | - Asuka Komano
- National Research Institute of Police Science (NRIPS)
| | | | - Nobuaki Mera
- National Institute of Advanced Industrial Science and Technology (AIST)
| | | | - Taizo Sano
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Nobuaki Negishi
- National Institute of Advanced Industrial Science and Technology (AIST)
| | | | - Yasuo Seto
- National Research Institute of Police Science (NRIPS)
| | - Koji Takeuchi
- National Institute of Advanced Industrial Science and Technology (AIST)
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523
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Kumar V, Anslyn EV. A Selective Turn-On Fluorescent Sensor for Sulfur Mustard Simulants. J Am Chem Soc 2013; 135:6338-44. [DOI: 10.1021/ja401845e] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vinod Kumar
- Department of Chemistry
and Biochemistry, The University of Texas at Austin, Austin, Texas 78712,
United States
| | - Eric V. Anslyn
- Department of Chemistry
and Biochemistry, The University of Texas at Austin, Austin, Texas 78712,
United States
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524
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Behniafar H, Moaref H. Poly(3,4-ethylenedioxythiophene)/TiO2 nanocomposites prepared in the presence of surfactants in binary solvents. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0132-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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525
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Boyle TJ, Velazquez AT, Yonemoto DT, Rodriguez MA, Steele LA. Synthesis and characterization of a series of rubidium aryloxide compounds. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.777435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Timothy J. Boyle
- a Sandia National Laboratories, Advanced Materials Laboratory , 1001 University Boulevard , Albuquerque , NM , USA
| | - Andrew T. Velazquez
- a Sandia National Laboratories, Advanced Materials Laboratory , 1001 University Boulevard , Albuquerque , NM , USA
| | - Daniel T. Yonemoto
- a Sandia National Laboratories, Advanced Materials Laboratory , 1001 University Boulevard , Albuquerque , NM , USA
| | - Mark A. Rodriguez
- a Sandia National Laboratories, Advanced Materials Laboratory , 1001 University Boulevard , Albuquerque , NM , USA
| | - Leigh Anna Steele
- a Sandia National Laboratories, Advanced Materials Laboratory , 1001 University Boulevard , Albuquerque , NM , USA
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526
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Singh R, Gutch P, Mazumder A. N, N-Dichlorourethane: An Efficient Decontaminating Reagent for Sulfur Mustard, a Chemical Warfare Agent. Ind Eng Chem Res 2013. [DOI: 10.1021/ie301991q] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ravindra Singh
- Synthetic Chemistry Division, Defence R&D Establishment, Jhansi Road, Gwalior 474 002 (MP), India
| | - P.K. Gutch
- Synthetic Chemistry Division, Defence R&D Establishment, Jhansi Road, Gwalior 474 002 (MP), India
| | - Avik Mazumder
- Vertox Laboratory, Defence R&D Establishment, Jhansi Road, Gwalior 474 002 (MP), India
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527
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Ruan Y, Taha HA, Yoder RJ, Maslak V, Hadad CM, Badjić JD. The Prospect of Selective Recognition of Nerve Agents with Modular Basket-like Hosts. A Structure–Activity Study of the Entrapment of a Series of Organophosphonates in Aqueous Media. J Phys Chem B 2013; 117:3240-9. [PMID: 23445375 DOI: 10.1021/jp401841w] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yian Ruan
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio, United States
| | - Hashem A. Taha
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio, United States
| | - Ryan J. Yoder
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio, United States
| | - Veselin Maslak
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio, United States
| | - Christopher M. Hadad
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio, United States
| | - Jovica D. Badjić
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio, United States
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528
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Park YK, Chung WY, Kim B, Kye YS, Shin MS, Kim D. Ion-Pair Single-Drop Microextraction Determinations of Degradation Products of Chemical Warfare Agents in Water. Chromatographia 2013. [DOI: 10.1007/s10337-013-2431-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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529
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Li H, Li J, Xu Q, Yang Z, Hu X. A derivative photoelectrochemical sensing platform for 4-nitrophenolate contained organophosphates pesticide based on carboxylated perylene sensitized nano-TiO2. Anal Chim Acta 2013; 766:47-52. [DOI: 10.1016/j.aca.2012.12.038] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Revised: 12/17/2012] [Accepted: 12/20/2012] [Indexed: 01/22/2023]
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530
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Štengl V, Grygar TM, Opluštil F, Olšanská M. Decontamination of Sulfur Mustard from Printed Circuit Board Using Zr-Doped Titania Suspension. Ind Eng Chem Res 2013. [DOI: 10.1021/ie302711u] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Václav Štengl
- Department
of Solid State Chemisty, Institute of Inorganic Chemistry AS CR v.v.i., 250
68 Řež, Czech Republic
| | - Tomáš Matys Grygar
- Department
of Solid State Chemisty, Institute of Inorganic Chemistry AS CR v.v.i., 250
68 Řež, Czech Republic
| | - František Opluštil
- Military Technical Institute of Protection Brno, Veslařská
230, 628 00 Brno, Czech Republic
| | - Marcela Olšanská
- Military Technical Institute of Protection Brno, Veslařská
230, 628 00 Brno, Czech Republic
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531
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Bermudez VM. Investigation of the interaction of γ-Al2O3 with aqueous solutions of dimethyl methylphosphonate using infrared multiple internal reflection spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:1483-1489. [PMID: 23350945 DOI: 10.1021/la304744u] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The interaction of dilute solutions of dimethyl methylphosphonate (DMMP) in H(2)O with thin porous layers of γ-Al(2)O(3) has been studied under steady-state conditions using infrared multiple-internal-reflection spectroscopy. Upon the initial introduction of the DMMP solution to a previously H(2)O-saturated surface, DMMP diffuses into the porous layer and displaces weakly hydrogen-bonded H(2)O molecules. This is accompanied by hydrolysis of the γ-Al(2)O(3) to form Al(OH)(3) and/or AlO(OH). The P═O group of DMMP interacts predominantly with H(2)O and gives no clear indication of bonding to the oxide surface itself, from which it is inferred that the displacement of weakly adsorbed H(2)O results from the interaction of acidic Al-OH sites with the methoxy O atoms of DMMP. No hydrolysis of the DMMP, either in solution or in contact with the oxide, was detectable under the present conditions. The results have practical implications in the decontamination of materials following exposure to toxic reagents related to DMMP.
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Affiliation(s)
- V M Bermudez
- Electronics Science and Technology Division, Naval Research Laboratory, Washington, DC 20375-5347, United States.
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532
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Biegańska J. Destruction of halogen-containing pesticides by means of detonation combustion. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:855-861. [PMID: 23128990 PMCID: PMC3555347 DOI: 10.1007/s11356-012-1277-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 10/22/2012] [Indexed: 06/01/2023]
Abstract
Pesticides that contain a halogen functional group have been destructed by means of detonative combustion. The following compounds were examined: (1) atrazine-2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine-herbicide; (2) bromophos-O,4-bromo-2,5-dichlorophenyl O,O-dimethyl phosphorothioate-insecticide; (3) chloridazon-5-amino-4-chloro-2-phenylopyridazin-3(2H)-one-herbicide; (4) linuron-3-(3,4-dichlorophenyl)-1-metoxy-1-methylurea-herbicide; (5) metoxychlor-1,1,1-trichloro-2,2-bis(4-metoxyphenyl)ethane-insecticide and acaricide; and (6) trichlorfon-dimethyl 2,2,2-trichloro-1-hydroxyethylphosphonate-insecticide. Explosive material has been produced on the basis of ammonium nitrate, which served as an oxidizer while the pesticides were used as fuels. Composition of the explosive was adjusted in such a way as to respect thermodynamic parameters. Detonative decomposition of the mixtures has been carried out in shot-holes pre-drilled in soil. Efficiency of the pesticide decomposition has been examined with gas chromatography in order to determine pesticides residues in the environment. It was found that for some, the amount of pesticides in some compounds in the analyzed samples after decomposition was below the determination threshold of the applied method.
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Affiliation(s)
- Jolanta Biegańska
- Faculty of Energy and Environmental Engineering, Department of Technology and Installations for Waste Management, Silesian University of Technology, 18 Konarskiego St, 44-100 Gliwice, Poland.
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533
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Vagapova GI, Valeeva FG, Gainanova GA, Syakaev VV, Galkina IV, Zakharova LY, Latypov SK, Konovalov AI. Novel self-assembling systems based on amphiphilic phosphonium salt and polyethylene glycol. Kinetic arguments for synergetic aggregation behavior. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.11.071] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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534
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Augusto F, Hantao LW, Mogollón NG, Braga SC. New materials and trends in sorbents for solid-phase extraction. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2012.08.012] [Citation(s) in RCA: 210] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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535
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Naseri MT, Sarabadani M, Ashrafi D, Saeidian H, Babri M. Photoassisted and photocatalytic degradation of sulfur mustard using TiO2 nanoparticles and polyoxometalates. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:907-916. [PMID: 22707206 DOI: 10.1007/s11356-012-0997-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 05/21/2012] [Indexed: 06/01/2023]
Abstract
The decomposition of highly toxic chemical warfare agent, sulfur mustard (bis(2-chloroethyl) sulfide or HD), has been studied by homogeneous photolysis and heterogeneous photocatalytic degradation on titania nanoparticles. Direct photolysis degradation of HD with irradiation system was investigated. The photocatalytic degradation of HD was investigated in the presence of TiO(2) nanoparticles and polyoxometalates embedded in titania nanoparticles in liquid phase at room temperature (33 ± 2 °C). Degradation products during the treatment were identified by gas chromatography-mass spectrometry. Whereas apparent first-order kinetics of ultraviolet (UV) photolysis were slow (0.0091 min(-1)), the highest degradation rate is obtained in the presence of TiO(2) nanoparticles as nanophotocatalyst. Simultaneous photolysis and photocatalysis under the full UV radiation leads to HD complete destruction in 3 h. No degradation products observed in the presence of nanophotocatalyst without irradiation in 3 h. It was found that up to 90 % of agent was decomposed under of UV irradiation without TiO(2), in 6 h. The decontamination mechanisms are often quite complex and multiple mechanisms can be operable such as hydrolysis, oxidation, and elimination. By simultaneously carrying out photolysis and photocatalysis in hexane, we have succeeded in achieving faster HD decontamination after 90 min with low catalyst loading. TiO(2) nanoparticles proved to be a superior photocatalyst under UV irradiation for HD decontamination.
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536
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Blinov V, Volchek K, Kuang W, Brown CE, Bhalerao A. Two-Stage Decontamination of Organophosphorus Compounds on Sensitive Equipment Materials. Ind Eng Chem Res 2013. [DOI: 10.1021/ie302012y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vladimir Blinov
- Environment Canada, 335
River Road, Ottawa, Ontario, K1A 0H3, Canada
| | | | - Wenxing Kuang
- Environment Canada, 335
River Road, Ottawa, Ontario, K1A 0H3, Canada
| | - Carl E. Brown
- Environment Canada, 335
River Road, Ottawa, Ontario, K1A 0H3, Canada
| | - Akshay Bhalerao
- Environment Canada, 335
River Road, Ottawa, Ontario, K1A 0H3, Canada
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537
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Sharma PK, Gupta G, Nigam AK, Pandey P, Boopathi M, Ganesan K, Singh B. Photoelectrocatalytic degradation of blistering agent sulfur mustard to non-blistering substances using pPy/NiOBPC nanocomposite. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2012.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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538
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Ordronneau L, Carella A, Pohanka M, Simonato JP. Chromogenic detection of Sarin by discolouring decomplexation of a metal coordination complex. Chem Commun (Camb) 2013; 49:8946-8. [DOI: 10.1039/c3cc45029e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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539
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Tomé CM, Oliveira MC, Pillinger M, Gonçalves IS, Abrantes M. Use of MoO2Cl2(DMF)2 as a precursor for molybdate promoted hydrolysis of phosphoester bonds. Dalton Trans 2013; 42:3901-7. [DOI: 10.1039/c2dt32734a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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540
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Ajami D, Rebek J. Chemical approaches for detection and destruction of nerve agents. Org Biomol Chem 2013; 11:3936-42. [DOI: 10.1039/c3ob40324f] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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541
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Sambrook MR, Notman S. Supramolecular chemistry and chemical warfare agents: from fundamentals of recognition to catalysis and sensing. Chem Soc Rev 2013; 42:9251-67. [DOI: 10.1039/c3cs60230c] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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542
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New light on phosphate transfer from triesters. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:454-63. [DOI: 10.1016/j.bbapap.2012.04.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 04/12/2012] [Accepted: 04/24/2012] [Indexed: 11/18/2022]
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543
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Knighton RC, Sambrook MR, Vincent JC, Smith SA, Serpell CJ, Cookson J, Vickers MS, Beer PD. Fluorogenic dansyl-ligated gold nanoparticles for the detection of sulfur mustard by displacement assay. Chem Commun (Camb) 2013; 49:2293-5. [DOI: 10.1039/c3cc39105a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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544
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Kumar V, Anslyn EV. A selective and sensitive chromogenic and fluorogenic detection of a sulfur mustard simulant. Chem Sci 2013. [DOI: 10.1039/c3sc52259h] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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545
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Barba-Bon A, Costero AM, Parra M, Gil S, Martínez-Máñez R, Sancenón F, Gale PA, Hiscock JR. Neutral 1,3-Diindolylureas for Nerve Agent Remediation. Chemistry 2012; 19:1586-90. [DOI: 10.1002/chem.201202028] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 11/07/2012] [Indexed: 11/07/2022]
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546
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Saeidian H, Babri M, Abdoli M, Sarabadani M, Ashrafi D, Naseri MT. Microsynthesis and electron ionization mass spectral studies of O(S)-alkyl N,N-dimethyl alkylphosphono(thiolo)thionoamidates for Chemical Weapons Convention verification. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:2805-2814. [PMID: 23124672 DOI: 10.1002/rcm.6407] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
RATIONALE The availability of mass spectra and interpretation skills are essential for unambiguous identification of the Chemical Weapons Convention (CWC)-related chemicals. The O(S)-alkyl N,N-dimethyl alkylphosphono(thiolo)thionoamidates are included in the list of scheduled CWC-related compounds, but there are very few spectra from these compounds in the literature. This paper examines these spectra and their mass spectral fragmentation routes. METHODS The title chemicals were prepared through microsynthetic protocols and were analyzed using electron ionization mass spectrometry with gas chromatography as a MS-inlet system. Structures of fragments were confirmed using analysis of fragment ions of deuterated analogs, tandem mass spectrometry and density functional theory (DFT) calculations. RESULTS Mass spectrometric studies revealed some interesting fragmentation pathways during the ionization process, such as alkene and amine elimination and McLafferty-type rearrangements. The most important fragmentation route of the chemicals is the thiono-thiolo rearrangement. DFT calculations are used to support MS results and to reveal relative preference formation of fragment ions. The retention indices (RIs) of all the studied compounds are also reported. CONCLUSIONS Mass spectra of the synthesized compounds were investigated with the aim to enrich the Organization for the Prohibition of Chemical Weapons (OPCW) Central Analytical Database (OCAD) which may be used for detection and identification of CWC-related chemicals during on-site inspection and/or off-site analysis such as OPCW proficiency tests.
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Affiliation(s)
- Hamdollah Saeidian
- Department of Science, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran.
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547
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Liang M, Fan K, Pan Y, Jiang H, Wang F, Yang D, Lu D, Feng J, Zhao J, Yang L, Yan X. Fe3O4 Magnetic Nanoparticle Peroxidase Mimetic-Based Colorimetric Assay for the Rapid Detection of Organophosphorus Pesticide and Nerve Agent. Anal Chem 2012; 85:308-12. [DOI: 10.1021/ac302781r] [Citation(s) in RCA: 296] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Minmin Liang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Kelong Fan
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Yong Pan
- Research Institute of Chemical Defense,
Beijing 102205, China
| | - Hui Jiang
- Research Institute of Chemical Defense,
Beijing 102205, China
| | - Fei Wang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Dongling Yang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Di Lu
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Jing Feng
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Jianjun Zhao
- Research Institute of Chemical Defense,
Beijing 102205, China
| | - Liu Yang
- Research Institute of Chemical Defense,
Beijing 102205, China
| | - Xiyun Yan
- Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
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548
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Marciano D, Columbus I, Elias S, Goldvaser M, Shoshanim O, Ashkenazi N, Zafrani Y. Role of the P–F Bond in Fluoride-Promoted Aqueous VX Hydrolysis: An Experimental and Theoretical Study. J Org Chem 2012; 77:10042-9. [DOI: 10.1021/jo301549z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Daniele Marciano
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Ishay Columbus
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Shlomi Elias
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Michael Goldvaser
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Ofir Shoshanim
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Nissan Ashkenazi
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
| | - Yossi Zafrani
- Department
of Organic Chemistry and ‡Department of Environmental Physics, Israel Institute for Biological Research, Ness-Ziona,
74100, Israel
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549
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Mora JR, Kirby AJ, Nome F. Theoretical Study of the Importance of the Spectator Groups on the Hydrolysis of Phosphate Triesters. J Org Chem 2012; 77:7061-70. [DOI: 10.1021/jo301380v] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- José R. Mora
- Department of Chemistry, National
Institute of Catalysis, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Anthony J. Kirby
- University Chemical Laboratory, University of Cambridge, Cambridge
CB2 1EW, U.K
| | - Faruk Nome
- Department of Chemistry, National
Institute of Catalysis, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
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550
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Wilmsmeyer AR, Uzarski J, Barrie PJ, Morris JR. Interactions and binding energies of dimethyl methylphosphonate and dimethyl chlorophosphate with amorphous silica. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:10962-10967. [PMID: 22780431 DOI: 10.1021/la301938f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The fundamental interactions of dimethyl methylphosphonate (DMMP) and dimethyl chlorophosphate (DMCP) on amorphous silica nanoparticles have been investigated with transmission infrared spectroscopy and temperature-programmed desorption (TPD). DMMP and DMCP both adsorb molecularly to silica through the formation of hydrogen bonds between isolated silanols and the phosphoryl oxygen of the adsorbate. The magnitude of the shift of the ν(OH) mode upon simulant adsorption is correlated to the adsorption strength. The activation energies for desorption for a single DMMP or DMCP molecule from amorphous silica varied with coverage. In the limit of zero coverage, after the effects of defects were excluded, the activation energies were 54.5 ± 0.3 and 48.4 ± 1.0 kJ/mol for DMMP and DMCP, respectively.
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Affiliation(s)
- Amanda R Wilmsmeyer
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
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