TEN MULTIPLE ADDRESSEES SR-90 AND Y-90 HAS BEEN ATTAINED. AND USED TO QUANTIFY THE SR-90. THE Y-90 IS SEPARATED A[4ERICIUM Ai4D PLUTOJJIUM ANALYSES OFF-SITE INCLUDE ISOLATION OF PU FROM AM AND ELECTRODEPOSITIO!l. TRACERS WILL BE USED TO QUANTIFY PU, AM ACTIVITY BASED ON THE RATIO OF THE TRACER TO ISOTOPE OF INTEREST. 1. ANALYSIS OF CORAL SOIL FOR SR-90 THE PURPOSE OF THIS PROCEDURE OF SR-90 IN CORRALINE SOIL. IS TO DETERMINE TliE AIvIOUNT THIS PROCEDURE ASSUMES SECULAR EQUILIBRIUM HAS BEE[i ACHIEVED. THE ‘f-90 Is SEPARATED FROM THE SR-90 AND COUNTED IN LON BETA BACKGROUND COUNTER. REAGENTS 0.0!3H HC1 SR-85 SR CARRIER 10tlG/ML Y CARRIER 20MG/ML 5% DI-2-ETHYL-HEXYL PHOSPHORIC ACID IN TOLUENE 3N HNo (HDEHP) CONCENTRATED NH40H lN HCl SATURATED (NH4)2C204 CALCIUM CARBOIIATE AFTER SAMPLES HAVE BEEN BALLMILLED AND HOMOGENIZED: A. ALIQUOT 5-1OG OF CORAL I!ITO150ML PORCELIN CRUCIBLE. ADD SR-35 TRACER AND SR CARRIER 10MG/ML, Y CARRIER 2oMG/ML. (TO DUPLICATE SAMPLE ADD Y-88 TO f4EASURE YTTRIUM YIELD, 10% OF SAMPLES MILL BE DUPLICATED).