The fast and effective neutralization of the mustard-gas simulant 2-chloroethyl ethyl sulfide (CEES) using a simple and portable continuous flow device is reported. Neutralization takes place through a fully selective sulfoxidation by a stable source of hydrogen peroxide (alcoholic solution of urea-H2O2 adduct/MeSO3H freshly prepared). The reaction progress can be monitored with an in-line benchtop NMR spectrometer, allowing a real-time adjustment of reaction conditions. Inherent features of millireactors, i.e. perfect control of mixing, heat and reaction time, allowed the neutralization of 25 g of pure CEES within 46 min in a 21.5 mL millireactor (tR = 3.9 min). This device, which relies on affordable and nontoxic reagents, fits into a suitcase, and can be deployed by police/military forces directly on the attack site.
[NMR paper] Real-time NMR monitoring of protein-folding kinetics by a recycle flow system for temperature jump.
Real-time NMR monitoring of protein-folding kinetics by a recycle flow system for temperature jump.
Real-time NMR monitoring of protein-folding kinetics by a recycle flow system for temperature jump.
Anal Chem. 2013 Sep 12;
Authors: Yamasaki K, Obara Y, Hasegawa M, Tanaka H, Yamasaki T, Wakuda T, Okada M, Kohzuma T
Abstract
An NMR method was developed that allows for real-time monitoring of reactions (on the order of seconds) induced by temperature jump. In a recycle flow system, heating and cooling baths were integrated, with the latter...
nmrlearner
Journal club
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09-14-2013 03:02 PM
[NMR paper] 1H NMR Based Targeted Metabolite Profiling for Understanding the Complex Relationship Connecting Oxidative Stress with Endometriosis.
1H NMR Based Targeted Metabolite Profiling for Understanding the Complex Relationship Connecting Oxidative Stress with Endometriosis.
1H NMR Based Targeted Metabolite Profiling for Understanding the Complex Relationship Connecting Oxidative Stress with Endometriosis.
Biomed Res Int. 2013;2013:329058
Authors: Jana SK, Dutta M, Joshi M, Srivastava S, Chakravarty B, Chaudhury K
Abstract
Accumulating evidence indicates the active role of oxidative stress in the development of endometriosis; however, the mechanism of reactive oxygen species...
nmrlearner
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08-29-2013 01:53 PM
[NMR paper] NMR-based metabolomics of urine in a mouse model of Alzheimer's disease: identification of oxidative stress biomarkers.
NMR-based metabolomics of urine in a mouse model of Alzheimer's disease: identification of oxidative stress biomarkers.
Related Articles NMR-based metabolomics of urine in a mouse model of Alzheimer's disease: identification of oxidative stress biomarkers.
J Clin Biochem Nutr. 2013 Mar;52(2):133-8
Authors: Fukuhara K, Ohno A, Ota Y, Senoo Y, Maekawa K, Okuda H, Kurihara M, Okuno A, Niida S, Saito Y, Takikawa O
Abstract
Alzheimer's disease (AD) is the most common cause of neurodegenerative dementia among elderly patients. A biomarker...
[Question from NMRWiki Q&A forum] Varian Gemini 300 Transmitter Board Indicator Lights
Varian Gemini 300 Transmitter Board Indicator Lights
I am having problems with a Varian Gemini 300 console. During the troubleshooting process, I noticed that the number of green lights activated on all of the transmitter boards has changed. In the schematic manual, these lights are labeled as XMTR, LOCK, OFF, and L0. However, I cannot find any more information as to what exactly these lights indicate. Can anyone help?
Thanks in advance.
Check if somebody has answered this question on NMRWiki QA forum
nmrlearner
News from other NMR forums
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07-22-2011 10:39 PM
[NMR paper] NMR structural characterization and computational predictions of the major intermediate in oxidative folding of leech carboxypeptidase inhibitor.
NMR structural characterization and computational predictions of the major intermediate in oxidative folding of leech carboxypeptidase inhibitor.
Related Articles NMR structural characterization and computational predictions of the major intermediate in oxidative folding of leech carboxypeptidase inhibitor.
Structure. 2005 Aug;13(8):1193-202
Authors: Arolas JL, D'Silva L, Popowicz GM, Aviles FX, Holak TA, Ventura S
The III-A intermediate constitutes the major rate-determining step in the oxidative folding of leech carboxypeptidase inhibitor...
nmrlearner
Journal club
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12-01-2010 06:56 PM
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Oxidative Neutralization of Mustard-Gas Simulants in an On-Board Flow Device with In-Line NMR Monitoring
Linear Mode
