Evaluation of Commercial Enzyme Immunoassays for the Field Screening of TNT andRDX in Water

摘要

Water samples from 44 monitoring wells at three military installations wereanalyzed for the high explosives TNT and RDX using immunoassay test kits. The accuracy and precision of the kit determinations were compared with results obtained using the RP-HPLC, EPA Method 8330. Most of the kits achieved a +50% relative percent difference criterion over 85% of the time. One of the kits failed this test over half the time. Careful consideration must be given to interferences that may be present and unique for each application.