By Anonymous on Wednesday, - 09:02 am:

what is the main difference between Normal phase and Reverse phase

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By Anonymous on Thursday, December 26, 2002 - 07:34 am:

Simple but complicated question. 'main difference'?

reverse phase is based on solubility or dipole weakness, normal phase is based on retardation based on hydrogen bonding to silica or induced dipole strength(polarity)?

normal phase elutes peaks from non-polar to most polar by time.
reverse phase elutes peaks in reverse order to that of normal phase?

main difference? water should be avoided with normal phase Liquid chromatography but with planar chromatography it is OK.