Each time we lost activity during purification of any of the components we were characterizing, we "returned" to the chromatographical column fractions and tried to reconstitute it via complementation.    From Wordnik.com.  [Aaron Ciechanover - Autobiography] Reference

When the radio-labeled protein was incubated in crude reticulocyte Fraction II in the presence of ATP, we observed a dramatic increase in its molecular weight: it now migrated as a sharp peak in the void volume of the gel filtration chromatographical column.    From Wordnik.com.  [Aaron Ciechanover - Autobiography] Reference

You may hear them mention, as the dramatic music crescendos and your favorite stars pretend to be concerned, a chromatographical process.    From Wordnik.com.  [xml's Blinklist.com] Reference