SampliQ SPE 

SampliQ Alumina N sorbents, with 50 - 200 μm particle size, can adsorb molecules by interaction with the aluminum metal center, hydrogen bonding with the surface hydroxyl groups, or by ion exchange if the surface carries a charge. The neutralized surface allows interaction with compounds whose heteroatoms are electronegative (e.g., N, O, P, S) or with an electron-rich, highly aromatic structure.