Environmental soil: preparation vs measurement vs leaching
SW-846 Method 3050B digests samples for downstream metal measurement; Method 8270E measures semivolatile organics by GC/MS; Method 1311 (TCLP) simulates leaching. Preparation, measurement and leaching are not interchangeable, and TCLP is not total-content analysis.
Sample considerations
- EPA SW-846 Method 3050B: Matrix, target metals, digestion objective and downstream measurement method
- EPA SW-846 Method 8270E: Matrix, analyte list, extraction approach and reporting limits
- EPA SW-846 Method 1311: Waste/material, particle-size reduction, extraction fluid and regulatory question