Studies on the Photoelectric Effect and its Medical Applications. Fifth Report. : The Photoelectric Effect of Proteins and Albuminuria

Abstract

1) The writer measured the photoelectric effect and the threshold wave length of albumin, casein, peptone, gelatin, globulin and haemoglobin in their various conditions. 2) Albumin which is almost perfectly dry by heating, shows photoeectric effect even with the longer visible rays than 5600Å. The threshold wave length of albumin changes according to its humidity. 3) The threshold wave length of solid peptone is longer than that of its aqueous solution. 4) The writer found the apparent photoelectric effect of casein which was considered not photoelectrical. 5) We can sensitively detect albuminuria by means of photoelectric effect.