title: Effect of ammonium hydroxide concentration on the recoveries of amino acids during preparation for gas-liquid chromatography.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D002849:Chromatography, Gas; D004305:Dose-Response Relationship, Drug; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*
chemical_list: D000596:Amino Acids; D000644:Quaternary Ammonium Compounds