The AminoPac^® PA10 is a strong anion-exchange column used, as part of the AAA-Direct^TM  system, for high-resolution separations of free amino acids, without derivatization. Amino sugars and carbohydrates are detected simultaneously with amino acids if they are present in the sample. In addition, separation and detection of a wide range of sugars, phosphorylated amino acids, and common oxidation products of sulfur-containing amino acids can be accomplished by this means. AAA-Direct is directly compatible with all four of the commonly used protein hydrolysis procedures, and the results compare favorably with those obtained by the classical Moore and Stein Ninhydrin procedure.

The AminoPac^® PA1 is a pellicular anion-exchange column that offers unique separation characteristics for the separation of amino acids in a variety of specialized applications. The column is particularly well suited for acidic and acid-labile amino acids and for amino acid pairs not completely resolved by cation-exchange chromatography.