THE USE OF BIG SAMPLE INAA FOR INHOMOGENEOUS MATERIALS - HOMOGENIZATIONS NO LONGER NEEDED

Two samples of one litre each of mercury contaminated soil were analyz ed by Big Sample INAA. Using this method, sample preparation procedure s can be omitted and the number of sample size reduction steps are dec reased. Therefore, the representativity of the sample is improved. Aft erwards, Big Sample INAA is compared to standard INAA by analyzing ten subsamples taken from each one litre sample. It is concluded that mul ti-element analysis results of Big Sample INAA are valid even for inho mogeneous large samples. This paper presents the first concentrations measured with BSINAA.