Wastewater standards and extraction chemistry in validation of microwave-assisted EPA method 3015A

摘要: The difficulties associated with the control and transfer of environmental leach methods are discussed. Optimized EPA Method 3015A, a microwave-assisted wastewater drinking water matrices aqueous extracts, is evaluated. option to add HCl in addition HNO3 provides better complexation recovery certain metals that regulated by Resource Conservation Recovery Act (RCRA) than original HNO3-only 3015. Also discussed preparation appropriate use “simulated” standards. Standard reference materials for matrix unavailable, this novel approach NIST-traceability results first time on type. Leach concentrations from these standards were determined using both 5 mL 4 1 options new 3015A. Validation mixed-acid 3015A has been provided evaluating its performance 23 elements which Me...