| abstract |
The invention provides a packing material for solid phase extraction, ensuring excellent recovery of not only a hydrophobic substance but also an ionic substance by having hydrophobicity and an ion exchange group at the same time, and a solid phase extraction method, a packing apparatus, and a method for treating a sample, using the packing apparatus. The packing material for solid phase extraction is a particle obtainable by copolymerizing a hydrophobic monomer (A) and a hydrophilic monomer (B) and introducing thereinto an ion exchange group, in which the ion exchange group is introduced without impairing the hydrophobic site. |