On the calculation of moments of molecular weight distribution from sedimentation equilibrium data

journal article
Published by National Institute of Standards and Technology (NIST) in Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry

Vol. 71A (1) , 13-17
https://doi.org/10.6028/jres.071a.006

Abstract

In this paper we discuss a technique for calculating moments of polydisperse materials in terms of concentration readings along the cell. The proposed method minimizes dependence on data from the end points where they may be unreliable. An analysis is given of the errors involved in the use of the proposed method when the underlying molecular weight distribution is the Schulz distribution or the lognormal.

Keywords

MOLECULAR WEIGHT AVERAGE
MOLECULAR WEIGHT DISTRIBUTIONS
MOMENTS
POLYDISPERSITY
POLYNOMIAL REPRESENTATION
SEDIMENTATION EQUILIBRIUM

This publication has 1 reference indexed in Scilit:

ON THE SIGNIFICANCE OF AVERAGE MOLECULAR WEIGHTS FROM SEDIMENTATION EQUILIBRIUM EXPERIMENTS
Proceedings of the National Academy of Sciences, 1964