Automatic Counting of Radioactivity on Two-Dimensional Paper Chromatograms
Radioactive tracer techniques, coupled with chemical analysis by paper chromatography, became important in biochemical research in the late 1940’s, and today many investigations into intermediary and other aspects of metabolism rely on these methods. Soon after the marriage of chromatography to the use of tracers, various instruments were constructed which were able simultaneously to locate the positions of radioactive compounds on paper chromatograms and to determine the amount of radioactivity in each separated compound. Such devices are now available commercially in many different designs, and are intended for the scanning and counting of one-dimensional chromatograms only.
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