RT Journal Article SR Electronic T1 DETERMINATION OF ETHYL ALCOHOL WITH THE PHOTOELECTRIC COLORIMETER JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 369 OP 371 VO 74 IS 4 A1 HENRY NEWMAN A1 MASON ABRAMSON YR 1942 UL http://jpet.aspetjournals.org/content/74/4/369.abstract AB The concentration of alcohol in solutions may be accurately determined by vacuum distillation of the sample off of anhydrous sodium sulphate at a temperature of 50 to 55 degrees C. into a solution of potassium dichromate in strong sulphuric acid, and the determination of the amount of dichromate reduced by photoelectric colorimetry.