Studies on Column Fractionation of Polyethyl Acrylate -Especially on θ Column Fractionation with Mixed θ Solvents-

Fractionation Studies on Provitamin

In previous studies we found that a commercial cholesterol preparation obtained from the Wilson Laboratories had a high concentration of antirachitic provitamin. In the present studies we undertook to concentrate the provitamin fraction in cholesterol and to study its properties. 175 gm. of the commercial product, Cholesterol W, were dissolved in 1200 cc. of 10 per cent solution of sodium hydro...

Theoretical analysis of the performance of a foam fractionation column.

A model system for theory and experiment which is relevant to foam fractionation consists of a column of foam moving through an inverted U-tube between two pools of surfactant solution. The foam drainage equation is used for a detailed theoretical analysis of this process. In a previous paper, we focused on the case where the lengths of the two legs are large. In this work, we examine the appro...

On (θ, θ)-Derivations in Semiprime Rings

Polarized light based scheme to monitor column performance in a continuous foam fractionation column

BACKGROUND A polarized light scattering technique was used to monitor the performance of a continuously operated foam fractionation process. The S11 and S12 parameters, elements of the light scattering matrix, combined together (S11+S12) have been correlated with the bubble size and liquid content for the case of a freely draining foam. The performance of a foam fractionation column is known to...

Micromachined Electrical Field-flow Fractionation Systems with On-column Electrical and Resonance Light Scattering Detection Modalities

iii This dissertation is dedicated to two fantastic women:-my mother, for teaching me the value of education, and her endless support and encouragement and-my wife, for her tolerance and patience with such an imperfect husband, and her dedication to me and our children I dearly love you both! iv ACKNOWLEDGEMENTS First, I would like to thank my advisor, Dr. A. Bruno Frazier, who has been the mos...