The ratio of two bulk forms of this quantity is given by the polydispersity index, which describes the width of the distribution of this property for certain compounds.
The ratio of two bulk forms of this quantity is given by the polydispersity index, which describes the width of the distribution of this property for certain compounds. In size exclusion chromatography, a negative relationship is obtained between the logarithm of this quantity and the elution volume, while in gel electrophoresis, "ladder molecules" with known values for this property are used as reference compounds. The highest peak corresponding to this property is possessed by monoisotopic particles in mass spec. For 10 points, identify this quantity which is usually expressed in Daltons for biological molecules, and which describes the total number of AMUs present in a compound.
The ratio of two bulk forms of this quantity is given by the polydispersity index, which describes the width of the distribution of this property for certain compounds.
{molecular weight} [or {molecular} mass; accept {molar mass}]