181Hf-Labelled rat serum transferrin: Influence of temperature on the metal-binding configurations

A181Hf-labelled rat serum transferrin sample was studied at different temperatures between 100 K and 346 K using a fast BaF2 TDPAC setup. Relaxation effects were observed in the liquid serum as well as in the frozen serum sample. The temperature dependence of the correlation time has been determined. Different relaxation modes are discussed.