-59- Appendix Table 1. Volumes in milliliters of eluted fractions obtained in the iton-exchange experiments with Dowex 50 Experiment Number Fraction I II IIt IVA IVB Vv Spikes Anions 99 49g 50 230 4.5 a5 25 HCl wash 60 20 30 --- --- 22 20 0.5% Oxalic acid 200 «40 40 «637)—fs 88 42 4o O.15 N NH,,C1 + 0.1 N HCl 0 0 Oo 40 26 38 ho pH 3.5 260 60 64 62 #460 55 60 3.1 3.3 3.4 140 360 4OO 200 S57 40 33 46 ho 4o pH 4.6 200 30 4o 30 32 30 30 pH 5.1 200 20 4O 86200— 20 20 20 pH 5.6 200 29 40 3=—30—t—i*=7331 30 30 pH 6.1 200 +22 40 22 20 20 Ammonium citrate - 5% pH 4.1 21 Appendix Table 2, Volumes in milliliters of eluted fractions obtained in the Lon-exchange experiments with Dowex 1 Fraction Experiment Number _IIt IV 12 M HCl 11.7 28 6M kM 2.5 M 0.5 M 0.005 M Distilled water 9.2 8.3 8.2 9.8 11.6 9.8 10 10 15 20 30 --