Collocations for purity - noun

absolute
the absolute purity of her love

great, high
high-purity silver

ideological
racial
moral, sexual

maintain, preserve
He struggled to preserve his ideological purity.

purity of blood
Hitler's belief in the purity of blood of the German people

purity of form, purity of style
a classical purity of form
the building's unadorned purity of style

purity of heart
She has a purity of heart that inspires others.