Chapter 26

Question	Answer
Column Chromatography	Stationary phase held in a narrow tube Mobile phase forced through the tube under pressure or by gravity
Planar Chromatography	Stationary phase is supported on a flat plate or in the interstices of a paper Mobile phase moves through the stationary phase by capillary action or gravity
Elution Chromatography	Involves transporting a species through a column by continuous addition of fresh mobile phase Tradition column Chromatography Movement down the column increases the distance between the two bands and broadens both bands. To improve separation: Alter the conditions so that the first component moves down the column much faster than the second

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