Patent ID: 6759442
Filing Date: 2004-07-06
Classification: B01D,B01J

Abstract:
A packing material for solid phase extraction, comprising a synthetic polymer obtained by copolymerizing a hydrophobic monomer (A) which comprises an aromatic divinyl compound and a hydrophilic monomer (B) which comprises a (meth)acrylic acid ester of a polyhydric alcohol having a hydroxyl group, wherein the (meth)acrylic acid ester of a polyhydric alcohol having a hydroxyl group is glycerol dimethacrylate, and introducing thereto an ion exchange group by a chemical modification comprising the step of introducing said ion exchange group by chemically bonding it to a hydroxyl group introduced from said glycerol dimethacrylate as the hydrophilic monomer (B), wherein said ion exchange group is covalently bonded to said polymer.