EFFECT OF THE PLOTTING PARAMETER 'K' UPON LIGHT-SCATTERING RESULTS,
Abstract
The optimization of the Zimm grid fit, as applied to the scattering of light from dilute polymer solutions, is discussed as a function of the plotting parameter 'k'. The characteristic parameters of the polymer and of its solution are relatively insensitive to the choice of 'k'; however, it is shown by a detailed error analysis, that a theoretically predictable value of 'k' minimizes the ratio of a function of error of the independent variable (a linear combination of the concentration and of a function of the scattering angle) to the same function of error of the dependent variable (the reciprocal intensity function). Optimal fit is obtained by choosing a value of the plotting parameter 'k' such that, on the average, the error committed on the independent variable is less than one percent of that committed on the dependent variable. It is thus shown that 'k' is not arbitrary, but that a predictable value can optimize the fit of the grid. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1966
- Accession Number
- AD0643718
Entities
People
- Frederick Eirich
- Michel Boeul
Organizations
- New York University Tandon School of Engineering