Amino acid standard H is a quantitative mixture of 18 amino acids at 2,5 µMol/ml each in 0,1N HCl, for use as a high-purity calibration standard for HPLC analysis of protein hydrolysates.

• Contains eighteen (18) amino acids for assessment of amino acid composition of peptide hydrolysates
• Contains exact amounts of each amino acid (2,5±0,1 µMol/ml, except cystine at 1.25±0,1 µMol/ml), enabling its use as a quantitation standard
• Dissolved in 0,1N hydrochloric acid and stabilized as 1 ml aliquots in sealed glass ampules

To permit standardisation of microbiological and other assays, the mixture uses only the L-form of each amino acid. The molar concentration of each amino acid is verified by conventional amino acid analysis methods, making the mixture suitable as both a qualitative and quantitative standard.