Extraction and determination of RDX and HMX in water

The analysis of energetic materials such as RDX and HMX in water at trace l evels was accomplished by using micro-extraction by miscible solvents, such as acetonitrile, 2-propanol and acetone, and salting out the organic phase . This paper compares the results obtained with solid-phase extraction (SPE ) to those obtained by demixing techniques for spiked Milli-Q water and an unfiltered lake water. A review of the data indicates that demixing with ac etonitrile-sodium chloride and 2-propanol ammonium sulfate gives better ext raction recoveries than solid-phase extraction. Salting-out extractions are performed in less time and with less solvent than by SPE techniques.