title: Extraction of amino acids as ion pairs. I. Separation of aromatic amino acids as ion pairs with inorganic anions by partition chromatography in micro columns.
mesh_terms: D000588:Amines / Q000032:analysis*; D000596:Amino Acids / Q000032:analysis*; D002845:Chromatography; D004952:Esters / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D007477:Ions; D008722:Methods; D008832:Microchemistry; D010783:Photometry; D013997:Time Factors
chemical_list: D000588:Amines; D000596:Amino Acids; D004952:Esters; D007477:Ions