Facile and rapid synthesis of functionalized Zr-BTC for the optical detection of the blistering agent simulant 2-chloroethyl ethyl sulfide (CEES)

2021 ◽  
Author(s):  
Osama Abuzalat ◽  
Setareh Homayoonnia ◽  
Danny Wong ◽  
Hesham R. Tantawy ◽  
Seonghwan Kim
Keyword(s):  
Optical Detection ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Mustard Gas ◽  
Rapid Synthesis

2-Chloroethyl ethyl sulfide (CEES) is a simulant for the chemical warfare agent, bis(2-chloroethyl) sulfide, also known as mustard gas. Functionalized Zr-BTC is synthesized and exploited for the optical detection of CEES.

scholarly journals Vapor Selectivity of a Natural Photonic Crystal to Binary and Tertiary Mixtures Containing Chemical Warfare Agent Simulants

Sensors ◽  
2019 ◽  
Vol 20 (1) ◽  
pp. 157 ◽  
Author(s):  
Joshua Kittle ◽  
Benjamin Fisher ◽  
Courtney Kunselman ◽  
Aimee Morey ◽  
Andrea Abel
Keyword(s):  
Photonic Crystals ◽  
Chemical Warfare Agent ◽  
Nerve Agent ◽  
Chemical Warfare ◽  
Mustard Gas ◽  
Dimethyl Methylphosphonate ◽  
Vapor Sensing ◽  
Sensitivity Level ◽  
Vapor Mixtures ◽  
Wing Scales

Vapor sensing via light reflected from photonic crystals has been increasingly studied as a means to rapidly identify analytes, though few studies have characterized vapor mixtures or chemical warfare agent simulants via this technique. In this work, light reflected from the natural photonic crystals found within the wing scales of the Morpho didius butterfly was analyzed after exposure to binary and tertiary mixtures containing dimethyl methylphosphonate, a nerve agent simulant, and dichloropentane, a mustard gas simulant. Distinguishable spectra were generated with concentrations tested as low as 30 ppm and 60 ppm for dimethyl methylphosphonate and dichloropentane, respectively. Individual vapors, as well as mixtures, yielded unique responses over a range of concentrations, though the response of binary and tertiary mixtures was not always found to be additive. Thus, while selective and sensitive to vapor mixtures containing chemical warfare agent simulants, this technique presents challenges to identifying these simulants at a sensitivity level appropriate for their toxicity.

scholarly journals A safe and compact flow platform for the neutralization of a mustard gas simulant with air and light

2020 ◽  
Vol 22 (13) ◽  
pp. 4105-4115
Author(s):  
Noémie Emmanuel ◽  
Pauline Bianchi ◽  
Julien Legros ◽  
Jean-Christophe M. Monbaliu
Keyword(s):  
Continuous Flow ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Mustard Gas ◽  
Flow Conditions

Intensified chemical neutralization of a chemical warfare agent simulant CEES with air and light under continuous flow conditions.

Heat Exchange During Encapsulation in a Chemical Warfare Agent Protective Patient Wrap in Four Hot Environments

1987 ◽  
Author(s):  
Lou A. Stephenson ◽  
Margaret A. Kolka ◽  
Anne E. Allan ◽  
William R. Santee
Keyword(s):  
Heat Exchange ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Hot Environments

Evaluation of Silver-Exchanged Zeolites Under Development by University of Maine for Chemical Warfare Agent Decontamination Applications

2007 ◽  
Author(s):  
Mark D. Brickhouse ◽  
Teri A. Lalain ◽  
Terrence G. D'Onofrio ◽  
Lawrence R. Procell ◽  
Zachary B. Zander
Keyword(s):  
Chemical Warfare Agent ◽  
Chemical Warfare

Optimization of quantum-dot light source and detection of the simulants of chemical warfare agent

2021 ◽  
Vol 114 ◽  
pp. 110935
Author(s):  
Suhui Wang ◽  
Xu Zhang ◽  
Genwei Zhang ◽  
Tengxiao Guo ◽  
Xuequan Ding
Keyword(s):  
Quantum Dot ◽  
Light Source ◽  
Chemical Warfare Agent ◽  
Chemical Warfare

scholarly journals Acid is a potential interferent in fluorescent sensing of chemical warfare agent vapors

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Shengqiang Fan ◽  
Genevieve H. Dennison ◽  
Nicholas FitzGerald ◽  
Paul L. Burn ◽  
Ian R. Gentle ◽  
...  
Keyword(s):  
Chemical Warfare Agents ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Standard Laboratory ◽  
Care Needs ◽  
Fluorescent Sensing ◽  
Sensing Systems ◽  
Sensing Material ◽  
Fluorescence Change ◽  
Warfare Agents

AbstractA common feature of fluorescent sensing materials for detecting chemical warfare agents (CWAs) and simulants is the presence of nitrogen-based groups designed to nucleophilically displace a phosphorus atom substituent, with the reaction causing a measurable fluorescence change. However, such groups are also basic and so sensitive to acid. In this study we show it is critical to disentangle the response of a candidate sensing material to acid and CWA simulant. We report that pyridyl-containing sensing materials designed to react with a CWA gave a strong and rapid increase in fluorescence when exposed to Sarin, which is known to contain hydrofluoric acid. However, when tested against acid-free diethylchlorophosphate and di-iso-propylfluorophosphate, simulants typically used for evaluating novel G-series CWA sensors, there was no change in the fluorescence. In contrast, simulants that had been stored or tested under a standard laboratory conditions all led to strong changes in fluorescence, due to acid impurities. Thus the results provide strong evidence that care needs to be taken when interpreting the results of fluorescence-based solid-state sensing studies of G-series CWAs and their simulants. There are also implications for the application of these pyridyl-based fluorescence and other nucleophilic/basic sensing systems to real-world CWA detection.

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