| Abstrakt: |
After rye (Secale Ceerale) tissue, labelled with C14, had been incubated with a peat soil, the soil was extracted with various solvents. One fractionation procedure was the proximate analysis method according to Waksman and Stevens (15). The other procedure was a comparison of the components extracted by 0.1mNa4P2O7, 0.5nNaOH, and 6nHCl. In the proximate analysis, the distribution of total carbon in benzene‐methano (10:1), 2% HCl, 80% H2SO4, and insoluble portion was 1.9, 30.8, 17.2, and 50.1%, respectively. The respective distribution of C‐14 was 40.3, 20.5, 13.4, and 25.8%. The fraction containing the smallest proportion of carbon had the largest proportion of C‐14. The 6N HCl extract was separated into more discrete fractions by gel infiltration than the extracts of 0.1M Na4P2O7and 0.5nNaOH. However, the NaOH removed a greater proportion of the radioactive materials. |
