By Emilie forrestier on Monday, August 30, 2004 - 04:24 am:

What is the importance of the regulation of the pressure at the hand of column

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By chromatographer1 on Monday, August 30, 2004 - 05:10 am:

this controls the amount of pressure drop over the column and thus the rate of flow. A consistent flow rate (or reproducible flow rate if programmed) is essential to reproducible chromatography