HPLC Determination of Hexanitrohexaazaisowurtzitane (CL-20) in Soil and Aqueous Matrices
Abstract
Hexanitrohexaazaisowurtzitane (CL-20) is a novel energetic material being investigated as a potential replacement for currently used explosive and propellant formulations. The principal objective of this study was to focus on the quantitative chemical analysis of freshly amended (0.01-100 mg/kg) and weathered/aged (0.01-10000 mg/kg) CL-20 in Sassafras Sandy Loam (SSL) soil extracts. Using modified U.S. Environmental Protection Agency (USEPA) Method 8330A, the instrumental limit of detection was 0.01 mg/L. In acetonitrile extracts, the limits of detection for fresh and weathered/aged CL-20 in soils were 0.08 mg/kg and 0.10 mg/kg, respectively, while in ATCLP (water) extracts, the limits of detection for fresh and weathered/aged CL-20 in soils were 0.1 mg/kg and 0.25 mg/kg, respectively. At all amended concentrations, paired t-tests were used to show that the recovery percentages for freshly amended and weathered/aged CL-20 in soil were statistically different. The water extract recoveries were lower due to CL-20's reduced solubility in water. Higher concentrations of CL-20 in soil (>or=1000 mg/kg) did not show a decrease in recovery. The CL-20 (1.5-100 mg/L) was also directly amended to aquatic test media, and the percentage of recoveries were determined. An interlaboratory study was used to validate the modified method and verify experimental results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2004
- Accession Number
- ADA429232
Entities
People
- Carl W. Kurnas
- Emily A. Davis
- J. S. Anthony
- Jan E. Kolakowski
- Mark V. Haley
Organizations
- Edgewood Chemical Biological Center