Allsep Anion Series

Anion Exclusion Columns separate organic acids and weakly ionized anions by an anion exclusion mechanism. Dilute mineral acids are the typical mobile phase for the separation. Acetonitril may be used as an organic modifier to decrease the retention of hydrophobic compounds.

The Allsep Anion column has been developed for the separation of inorganic anions by suppressor-based or singlecolumn ion chromatography. This column is also an excellent choice for single-column IC (SCIC). For SCIC applications, the column works well with p-hydroxybenzoic acid and phthalic acid mobile phases. The Allsep columns are available in stainless steel or metal-free formats.