“…The data were converted to effective distribution ratios, R*, defined as: R* = _cpm of actinide per unit supernatant vol cpm of actinide per unit mass of soil before equilibration (1) where cpm is a or 7 counts per minute of 241Am, 244Cm, or 2,i' Np. t It should be noted that the denominator in Equation 1differs from that usually employed in that the total actinide content of both phases, rather than the actinide content of the solid phase alone, is used.…”