ИСТИНА

graphene oxide and their and their functional derivatives with -H, -OH, -COOH, -NH2 groups were used. Sorption processes on the surface of functional carbon materials for 99Tc (99mTc), 213Bi, 211Pb, 90Y, 68Ga were studied depending on concentration, time and pH. These radionuclides are most widely used in radionuclides, cardiovascular and many other diseases [2]. TEM, FTIR, Raman, XRD, XPS, DLS methods, characterized the samples of CNs obtained in the work. Full sorption of 99Tc, 213Bi, and 211Pb from an aqueous solution in physiologically acceptable conditions was established [3]. Several samples of CNs with adsorbed radionuclides to be stable during 24 h, which is sufficient for the preparation of radiopharmaceuticals directly in medical centers, drug administration to patient, accumulation in target organs and to carry out diagnostic and therapy procedures.