HPLC
In normal phase HPLC, there is a

non polar solvent/non-polar column
polar solvent/non-polar column
any of the above
non polar solvent/polar column

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HPLC
HPLC methods include

liquid/liquid (partition) chromatography
ion exchange and size exclusion chromatography
liquid/solid (adsorption) chromatography
All of these

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