Abstract
GEL electrophoresis allows the detection of radioactive compounds by contact with a photographic film. I have tried to separate radioactive ions by electrophoresis, using a thin layer of radiosensitive photographic gelatin as supporting medium. I hoped thus to locate smaller amounts of radioactive substances within a shorter time and, above all, to achieve higher efficiency in detection and location of tritium-labelled molecules through autoradiography. This communication gives a brief account of the first runs of autoradiographic electrophoresis in a thin layer of buffered photographic gelatine and affords a glimpse of the possibilities of this new type of supporting medium.
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