Material: PP columns with PE filter elements. Packing material for solid-phase extraction SPE Adsorbent ROTI ® X Bond SA (SCX) Benzenesulphonic acid modified silica gel, strong acidic cation exchanger (SCX) Please note: Adsorbent with hydrophobic and π-π-interactions (benzene ring); Ion exchange of organic compounds from aqueous matrix; Elution of interesting compounds with solvent systemes, which compensate the ionic and nonpolar interactions, e.g. methanolic HCl. Similar phases: Strata ® SCX, Bond Elut SCX, Discovery ® DSC-SCX, Supelclean™ LC-SCX, CLEAN-UP ® Benzenesulfonic Acid, Bakerbond™ Aromatic Sulfonic Acid, Isolute ® SCX, LiChrolut ® SCX