Polymethacrylate stationary phase for reversed phase and HILIC separations. Exhibits similar polarity to C18. Wide pH range (2-12) and compatible with 100% aqueous mobile phases. Suitable for the analysis of organic acids. Fulfills USP-NF L71 requirements. Shipping solvent: 100% water. Guard column 220-91524-54 is recommended to prolong the lifetime of the analytical column. Use with PEEK coupler 220-91524-99 (1-piece, double ended) or 220-91524-98 (approx. 3" PEEK tubing and fittings.)