Cs, Pu, Am and Th using 5-10 g sediment

This method specifies the minimum requirements and laboratory methods for the measurement of Cs, Th, ^239,240Pu, ²⁴¹Am (transuranics) in sediments (Anderson and Fleer, 1982). This is a multi-day laboratory schedule that can be simplified considerably if only one radionuclide must be measured. The final step for several radionuclides involves electroplating a thin source on counting disks and detection by spectrometric methods. For details on plating and radioanalytical methods, refer to other recipes.