Development of an analytical methodology for sarin (GB) and soman (GD) in various military-related wastes
Autor: | Louis F. Sytsma, Todd A. Kimmell, Hugh J O’Neill, Kenneth L Brubaker, John F. Schneider |
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Rok vydání: | 2002 |
Předmět: |
Detection limit
Sarin Chromatography Environmental analysis Soman Organic Chemistry Thermal desorption Reproducibility of Results General Medicine Reference Standards Sensitivity and Specificity Biochemistry Analytical Chemistry chemistry.chemical_compound chemistry Calibration Sample preparation Chemical Warfare Agents Gas chromatography Solid phase extraction |
Zdroj: | Journal of Chromatography A. 962:183-195 |
ISSN: | 0021-9673 |
DOI: | 10.1016/s0021-9673(02)00464-8 |
Popis: | The Army requires analytical methods that can detect chemical agents down to the low part-per-billion (ppb) levels in their waste streams in order to meet various state regulations regarding the classification of hazardous waste. Analytical methods were developed for the measurement of sarin (GB) and soman (GD) at ppb levels that involved preconcentration of relatively large volumes (40–150 μl) of a chloroform extract onto a sorbent cartridge, followed by thermal desorption and analysis by GC–flame photometric detection. Certified reporting limits (CRLs) achieved with these methods ranged from 8.3 to 19 ppb for GB and from 1.8 to 5.3 ppb for GD in the three matrices screened. Method detection limits (MDLs) achieved with these methods ranged from 1.7 to 8.2 ppb for GB and from 0.39 to 1.2 ppb for GD. The methods are capable of achieving lower CRLs and MDLs with only minor modification. |
Databáze: | OpenAIRE |
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