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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Morrissey, Kevin Haroldsen, Brent Horton, James Vandernoot, Victoria Van De Vreugde, James Ferko, Scott Patel, Kamlesh Forrest, Lucille Volponi, Joanne |
| Description | Country affiliation: United States Author Affiliation: Vandernoot V ( Sandia National Laboratories, Livermore, CA, USA. vavande@sandia.gov) |
| Abstract | We present an automated analysis system for the detection of the chemical warfare blister agents, sulfur mustard (HD) and lewisite (L), in aqueous samples without any chemical derivatization. The system is compact in size and designed to operate in the field in a safe, autonomous manner for near real-time monitoring applications. It uses anionic surfactant-based capillary micellar electrokinetic chromatography (MEKC) to separate the sample followed by UV detection. The analysis time is sufficiently fast to allow direct detection of HD which enabled the estimation of effective hydrolysis rates in the aqueous sample matrix. The estimated hydrolysis half-life of HD in our system was 4.85 ± 0.05 min. The detection limit of HD was determined to be 10 ppm with a signal to noise ratio of 5. By contrast, L hydrolyzed too rapidly in aqueous samples to enable direct detection. Instead the first hydrolysis product 2-chlorovinyl arsonous acid (CVAA), also considered a blister agent, was detected with a detection limit of 0.7 ppm with a signal to noise ratio of 5. |
| ISSN | 00219673 |
| Journal | Journal of Chromatography A |
| Volume Number | 1249 |
| e-ISSN | 18733778 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-08-03 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Automation Chemical Warfare Agents Analysis Chromatography, Micellar Electrokinetic Capillary Methods Hydrolysis Spectrophotometry, Ultraviolet Journal Article Research Support, U.s. Gov't, Non-p.h.s. Discipline Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Medicine Analytical Chemistry Biochemistry |
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