free amino acids

Analysis of free amino acids in different extracts of Orthosiphon stamineus leaves by high-performance liquid chromatography combined with solid-phase extraction

Shafaei A, Halim NHidayah Ab, Zakaria N, Ismail Z. Analysis of free amino acids in different extracts of Orthosiphon stamineus leaves by high-performance liquid chromatography combined with solid-phase extraction. Pharmacognosy Magazine [Internet]. 2017;13(51s):s385-s391. https://www.ncbi.nlm.nih.gov/pubmed/29142388