DETERMINATION OF CRYSTALLINE ANDROSTERONE WITH THE EVELYN PHOTOELECTRIC COLORIMETER

Abstract

A modification of the Zimmermann procedure for color development was applied to the assay of crystalline androsterone, and the Evelyn photoelectric colorimeter was calibrated for the technic in terms of androsterone. The greatest advantage gained by the use of this colorimeter was the elimination of the subjective factor inherent in visual comparative measurements. The data indicate a high degree of reliability and reproducibility of results in the assay of crystalline androsterone.