Validation of subsampling procedures and granulometry distribution uncertainty assessment in environmental soil analysis

摘要

A scheme for validation of subsampling activities and assessment of granulometry distribution uncertainty has been developed. The study has been performed to ensure the representativity of the aliquot, the subsample, selected for the analytical procedure with respect to the field sample and final results. The procedure developed provides an easily accessible empirical method based on repeated measurements. The uncertainty and its consequences on analytical results have been evaluated. Different soil typologies have been tested.