A simple and cheap remotely operated system for the iodination of proteins

The manipulations involved proved to be uncomplicated and rapid, the whole procedure taking only 20 min. There was 70% attenuation of radioactivity by the Perspex front panel as measured at the site of the operator. Further attenuation could be achieved at an increased cost by replacing the Perspex screen by a heavy plate glass front. The technique has been used routinely in our laboratory for the iodination of LH and FSH for twelve months, during which time we have made twenty successful preparations. The apparatus described could be adapted to any small scale reaction involving nonvolatile noxious chemicals, including radioisotopes.