There has been considerable discussion on the question of determining total sulphur in urine. Folinl has suggested the use of sodium peroxide as oxidizing agent in determining total urinary sulphur. Benedict,2 by the use of copper nitrate and potassium chlorate, obtains results comparable with those of the Folin method. Ritson3 by using barium peroxide, obtains somewhat higher values than are g...

We have been accustomed to estimate the lactate in blood by hemolysis in water, removal of the proteins by the method of Folin and Wu (4), treatment of the filtrate with CuSO4 and Ca(OH)2 according to Van Slyke (ll), and estimation of the lactate in the centrifugate by a modification of the aeration method of Friedemann, Cotonio, and Shaffer (6). There have been suggestions that some of the pre...

The present day concepts of the amino-acid metabolism in normal persons have been formulated largely on the basis of the studies of Folin and Denis, Van Slyke and Meyer, and Folin and Berglund. These authors have been particularly interested in the relation of the amino-acids in the blood to the processes of protein metabolism in normal persons. The behavior of the amino-acids in the blood in d...

Uric acid is commonly determined in biological fluids by measuring the blue colour produced by its reaction with reagents containing phosphotungstic or arsenotungstic acids under conditions which minimize interference by other reducing substances (Folin & Denis, 1912; Folin, 1933, 1934; Benedict, 1912, 1922; Brown, 1945; Bidmead, 1951). Recovery of uric acid added to blood has never been comple...

Three methods. namely, absorbance of colour by reaction with Folin-Ciocalteau reagent, UV absorbance and fluorescence intensity measurements for detection of H3 histone in 0.15 M standard saline citrate (SSC) solution were compared. Maximum sensitivity was found with the Folin-Ciocalteau method. Effect of varying pH and of yradiation on H3 hi stone and on interaction of H3 hi stone with DNA wer...

Among the ambassadors of Romanian science and culture, we include the doctor Vintilă Ciocâlteu. Along with Victor Babeş, Nicolae Paulescu and George Emil Palade, Vintilă Ciocâlteu contributed further, by the reagent which he prepared together with Otto Folin, to the completion and deepening of the knowledge of cell biology within the medical agricultural, horticultural research or industrial ch...