Welchrom Alumina-N

Welchrom® Alumina-N is a strong polar SPE adsorbent of neutral alumina with neutral surface treatment, it can interact with aluminum metal centers and form hydrogen bonds with surface silicol groups, absorbing molecules with the charged surface by ion exchange. Further, it has strong retention ability to heterocyclic compounds containing nitrogen, phosphorus, sulfur groups, aromatic hydrocarbons and organic amines, etc. Widely used for sample pretreatment of sudan red and malachite green.