Now showing items 21-30 of 50
Infrared spectra of high polymers. V. Polyvinyl alcohol Presented in part at the Symposium on Molecular Structure and Spectroscopy, Columbus, Ohio, June 1956.
(Interscience Publishers, Inc.Wiley Periodiocals, Inc., 1956-11)
The infrared spectrum of polyvinyl alcohol has been investigated between 3600 and 70 cm. −1 . Polarization measurements on stretched specimens were made down to about 330 cm. −1 . The spectrum of a deuterated specimen ...
Hysteresis of contact angle of water on paraffin. Effect of surface roughness and of purity of paraffin
(Elsevier, 1953-04)
The experimental results show that when very thin films of purified paraffin were formed in vacuum by volatilization on smooth glass surfaces and water drops were placed upon them, the advancing and the receding contact ...
The metabolism of Brucellae: The nature of the effects of pH and concentration on the rate of oxidation of succinate
(Elsevier, 1956-10)
The sharp rise in the rate of oxidation of succinate by Brucella abortus that occurs with gross increases in hydrogen ion or the substrate concentration was accompanied by an even greater degree of increase in the rate of ...
The infrared and Raman spectra of the pentafluoroethyl halides
(Elsevier, 1959)
The infrared spectra of the pentafluoroethyl halides have been investigated in the gaseous state with double-beam prism spectrometers using NaCl and CaF2 prisms, and the Raman spectra of the compounds have been obtained ...
Polyelectrolyte behavior of glycerol-treated psoas fibers This work was supported by grant No. RG-4917 from the U. S. Public Health Service.
(Interscience Publishers, Inc.Wiley Periodiocals, Inc., 1959-12)
Glycerol-treated psoas fibers lengthen when transferred from distilled water to 0.01 M barbital at pH 3.3. The addition of electrolyte then causes a considerable shortening, depending primarily on the charge of the anion. ...
Peptic hydrolysis of ovalbumin modified by acetylation,
(Elsevier, 1957-09)
1. 1. Two types of acetylated ovalbumin derivatives designated as N-and N,O-acetylovalbumin were prepared by treatment with ketene at pH's 5.6 and 9.0, respectively.2. 2. Both limited and extensive acetylation decreases ...
A method for the determination of guanidoacetic acid and arginine in biological fluids,
(Elsevier, 1959-12)
A method for the determination of either arginine or guanidoacetic acid or both in biological materials has been presented. The method is based on the chromatographic separation of arginine from guanidoacetic acid and the ...
Synthesis of B vitamins by excised parts of White lupine seedlings grown in sterile culture
(Elsevier, 1954-09)
In this investigation it has been found that excised roots, hypocotyls, and epicotyls of White lupine seedlings synthesize thiamine, riboflavin, and niacin when grown in sterile cultures. Oxygen is necessary for this synthesis.