Alumina SPE Cartridge

GREEN MALL AI-A  

Neutral alumina is a highly polar SPE adsorbent with a neutral surface treatment. It can interact with the aluminum metal center to form hydrogen bonds or charge exchange adsorption molecules on the surface of the silanol group. For heterocyclic substances containing nitrogen, phosphorus, and sulfur groups, negative compounds such as aromatic hydrocarbons and organic amines have strong retention ability. It is widely used for sample pretreatment of Sudan red and Malachite green.

GREEN MALL AI-A  
GREEN MALL Alumina-A is an alumina adsorbent with an acidic surface (pH = 4.5). It can be used as a strong polar adsorbent and a medium cation exchanger.

GREEN MALL AI-B  
The alkaline alumina SPE adsorbent obtained by treating acidic alumina with an alkaline solution has a negative surface charge and a similar cationic bonding effect.