Receptor autoradiography with tritium-sensitive film: potential for computerized densitometry.

Benzodiazepine receptors mounted tissue sections of brain were localized by autoradiography using a tritium-sensitive sheet film (3H-Ultrofilm, LKB). The use of the film had many advantages compared to a previous technique utilizing emulsion-coated coverslips. A major advantage is the adaptability of the film to microdensitometric techniques for measurement of receptors. The densitometry can be carried out by computerized, color-coded image analysis.