Estimation of lactic acid in biological material by oxidation with ceric sulphate

Mechanism of Phenylacetylcarbinol Synthesis by Yeast

“…The following methods were employed for determination of substrates and products: acetyl phosphate by the method of Lipmann and Tuttle (1945); acetic acid, determined as volatile acid by steam distillation at pH 2 and titration with standard NaOH; lactic acid by the method of Barker and Summerson (1941); inorganic phosphate by the method of Fiske and Subbarow (1925); adenosine triphosphatase by the method of DuBois and Potter (1943); pyruvic acid, manometrically by ceric sulfate oxidation ( Barron and Lyman, 1939). Lactic acid also is oxidized by ceric sulfate (Gordon and Quastel, 1939). The actual amount of unutilized pyruvic acid was found by correcting the result from ceric sulfate oxidation for the lactic acid formed.…”

Metabolism of normal and tumour tissue

“…were carried out in phosphate-Ringer by the first method of Dickens & Simer [1930,1] and in bicarbonate-Ringer or serum by the second method of Dickens & 8imer [1931,1]. Lactic acid was estimated by the method of Gordon & Quastel [1939].…”

Morin Reation for Beryllium

“…During recent years the author compared many procedures for the determination of specific gravity-e. g., the methods of the falling drop, the submerged float, suspension or flotation (10,22,25), balanced liquids (14), and the schlieren, and various micropycnometers. Because of the limited range of application of most of these procedures, references to which may be found in the review by Blank and Willard (12), only the last two methods have been studied in detail.…”