1.   The relations derived in this and other chapters normally assume that the polymer sample has a unique molar mass.

2.   Successive additions of small quantities of non-solvent to the solution allow a series of fractions of steadily decreasing molar mass to be separated.

3.   Fractions of increasing molar mass are collected from the bottom of the column.

4.   A useful approach was proposed by Schulz who suggested that a cumulative mass fraction be plotted against the molar mass.

5.   The differential curve can be obtained by determining the slope of this curve at selected molar masses and plotting this against the appropriate molar mass.