Evaluation of clean solid phases for extraction of nitroaromatics and nitramines from water. Special report
Salting-out solvent extraction (SOE) was compared with cartridge and membrane solid-phase extraction (SPE) for preconcentration of nitroaromatics, nitramines, and aminonitroaromatics prior to determination by reversed-phase high-performance liquid chromatography. The solid phases used were manufacturer-cleaned materials, Porapak RDX for the cartridge method and Empore SDB-RPS for the membrane method. Thirty-three groundwater samples from the Naval Surface Warfare Center, Crane, Indiana, were analyzed using the direct analysis protocol specified in SW846 Method 8330, and the results were compared with analyses conducted after preconcentration using SOE with acetonitrile, cartridge-based SPE, and membrane-based SPE. For high-concentration samples, analytical results from the three preconcentration techniques were compared with results from the direct analysis protocol; good recovery of all target analytes was achieved by all three pre-concentration methods. For low-concentration samples, results from the two SPE methods were correlated with results from the SOE method; very similar data was obtained by the SOE and SPE methods, even at concentrations well below 1 microgram/L.
- Research Organization:
- Cold Regions Research and Engineering Lab., Hanover, NH (United States)
- OSTI ID:
- 220276
- Report Number(s):
- AD-A-301300/0/XAB; CRREL-SR-95-22; TRN: 60920122
- Resource Relation:
- Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
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