An evaluation of radiocolloid sizing techniques.

  title={An evaluation of radiocolloid sizing techniques.},
  author={A. Warbick and Guenter Ege and R. Mark Henkelman and Robert S. Maier and Donald M. Lyster},
  journal={Journal of nuclear medicine : official publication, Society of Nuclear Medicine},
  volume={18 8},
Techniques for sizing radiocolloids are reviewed. The small size range (1-100 nm) of many radiocolloids and their polydispersity limit the choice of the technique used. To compare several techniques directly, the particle size of Technetium-99m sulfide colloid was studied using Nuclepore filtration, ultracentrifugation and electron microscopy. The last of these was adopted as the method of choice. Using this technique, the particle size and shape of colloids below 100 nm can be accurately… CONTINUE READING

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