¡£Least selective Olefins (¡°polar¡±) aluminum oxide phase
¡£Deactivated with KCl
¡£Good baseline separation of most C1 to C10 hydrocarbons
¡£Olefins may co-elute with corresponding paraffin over C5
¡£Minimum surface adsorption of dienes and halocarbons
¡£ASTM recommended phase
¡£Preferred choice of hydrocarbon separation
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