Preferred Label : Zimm plot;
IUPAC definition : A diagrammatic representation of data on scattering from large particles, corresponding
to the equation: \[\frac{K_{c}}{Δ R (\theta)} \frac{1}{\bar{M}_{{w}}\ P (\theta)}
2\ A_{2}\ c { ... }\] and used for the simultaneous evaluation of the mass average
molar mass, M w, the second virial coefficient of the chemical potential, A2, and
(usually) the z-average radius of gyration, s 2 z 1 2; c is the mass concentration
of the solute, ΔRθ the excess Rayleigh ratio, and P θ the particle scattering function
that comprises (usually) the z-average radius of gyration. K depends on the solute,
the temperature and the type of radiation employed. Several modifications of the Zimm
plot are in frequent use; the most common one uses the excess scattering instead of
the excess Rayleigh ratio.;
Origin ID : Z06748;
See also
A diagrammatic representation of data on scattering from large particles, corresponding
to the equation: \[\frac{K_{c}}{Δ R (\theta)} \frac{1}{\bar{M}_{{w}}\ P (\theta)}
2\ A_{2}\ c { ... }\] and used for the simultaneous evaluation of the mass average
molar mass, M w, the second virial coefficient of the chemical potential, A2, and
(usually) the z-average radius of gyration, s 2 z 1 2; c is the mass concentration
of the solute, ΔRθ the excess Rayleigh ratio, and P θ the particle scattering function
that comprises (usually) the z-average radius of gyration. K depends on the solute,
the temperature and the type of radiation employed. Several modifications of the Zimm
plot are in frequent use; the most common one uses the excess scattering instead of
the excess Rayleigh ratio.
