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Interactions of no-carrier-added radionuclides  61 Cu,  62 Zn,  66 Ga,  69 Ge and  71 As with poly( N -vinylpyrrolidone) (PVP) were studied in multi-elemental environment by dialysis with the help of tracer packet technique. It has been observed that in acidic pH gallium has a high tendency for formation of Ga-PVP complex while the same is true for Cu and Zn in neutral and basic pH. Germanium is always inert towards the interaction with PVP at all pH values. No interaction of arsenic was observed in acidic and neutral pH; while in basic pH the tendency to form As-PVP complex is considerably higher. The result can be considered as a model of  in-vivo  interaction of PVP-Ga/Cu/Zn/As complexation.

Studies on the interaction of poly( N -vinylpyrrolidone) with no-carrier-added 61 Cu, 62 Zn, 66 Ga, 69 Ge and 71 As using tracer packet technique