Agilent offers Amino Acid Standards for us with your ZORBAX Eclipse Amino Acid Analysis (AAA) columns. Each amino acid standard is 10 x 1 mL ampoules and contains Glycine, L-cystine, L-histidine, L-tyrosine, L-leucine, L-methionine, L-serine, L-alanine, L-phenylalanine, L-glutamic acid, L-proline, L-isoleucine, L-arginine, L-threonine, L-valine, L-lysine and L-aspartic acid.