12. Transfer the paper to a 100 ml platinum dish. GOO°C tO oxidize all carboncous ma~cria~s. Dry at 11 O°C and ignite at 13. Coolthedish. Add 25 ml of1-1N03 mld 10 ml ofIIFtolhcrcsiclue and evaporate todryness. 14. Repeat the addition and evaporation 15. Add 25 ml of}IN03and 5 ml of IIC104.Evaporatetodryness. Dissolvethe residuein1:11-lNO~ and combinewi[hthemain solution reservedforplutonium determill,ation. 16, 17. Evaporate the solution to about 100 ml. Cool to room tcmpcraturc, transfer a 250 ml graduated cylinder ancl record the volume. Rcscrvc Lhc bcalmr. Dispense two 100 microliter aliquots to two 150 ml beakers containing to 25 ml of deionized water. Aclcl 2-3dropsof0.5r\) ]]l~ci~c}lpl]tllalci]l. ‘1’i~ralc the two aliquots with stzmdardizcd 0.1 N to a pllcl~oll]l]tllalcill cncl point. Calculate the acidnormalityofthesample solution. 18, Transfer the sample from the graduated cylinder to original beaker reserved in step 16. Wash the graduated cylinder with the amount of water necessary to ofthe sample solution to 8& HN03. adjust the normality 19. Continue -— .----- —.. --—.- ... the analysis from ION EXC J 1A NGE SJ41’ARATION, in l~roccclurc E- Pu-07.