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首页> 美国政府科技报告 >HPLC Determination of Hexanitrohexaazaisowurtzitane (CL-20) in Soil and Aqueous Matrices
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HPLC Determination of Hexanitrohexaazaisowurtzitane (CL-20) in Soil and Aqueous Matrices

机译：高效液相色谱法测定土壤和水基质中六硝基六氮杂异伍兹烷（CL-20）的含量

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摘要

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.

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