122: STYROS® 2R Simulated-Monolith™ Polymeric Reversed Phase. Use of Narrow Bore column of 2.1 mm ID using high pH’s to separate 5 Chlorophenols 122: STYROS® 2R Simulated-Monolith™ Polymeric Reversed Phase. Use of Narrow Bore column of 2.1 mm ID using high pH's to separate 5 Chlorophenols