17%. Process sample through an ion exchange column as follows: a. Use a column tube with 8-inch stem by 5/8-inch inside diameter. Place glass wool plug in column. b. Prepare a slurry of Bio-Rad AG1X2 ion exchange resin with deionized water and transfer the slurry into the column until the resin bed is 8 em high. 18. Washthe resin bed three times with 20 m1 8N HNO3. Theresin will shrink. 19. Transfer the sample solution to the column and allow to flow through the resin bed. 20. Rinse the beaker with 20 ml 8N HNOg3 and transfer to column. Repeat twice more. 21. Wash column with 20 m1 9M HCl. Repeat twice more. 22. Elute the plutonium with 3x20 ml of 1M NHglI and 1 ml (20 ml 9M HCl + 1 ml NHg)). Collect plutonium in 100 ml beaker, add 10 mi HNOg and evaporate to dryness. 23. Add 10 ml HNOs, rinse walls of container and evaporate to dryness. 24, Convert the residue to the chloride form by adding 1 ml of cone. HCl and evaporate to 25. Electroplate as follows: dryness. a. Add 2 ml of 0.4N HCl. b. Add 3 ml of 4% ammonium oxalate. e. Agitate sample in ultrasonic cleaner. d. Transfer to a numbered plating cell with deionized water. Rinse beaker with deionized water. Addrinse to cell. Electroplate at 210 ma for 2 hours. 26. After plating for 2 hours, add phenolphthalein indicator and make basic with 1% NH4OH. 27. Removeplating dise, allow to air dry and flame to blue color. 28. Cool and count on the alpha spectrometer. A-14-2