One Single Amino Acid for Estimation the Content of Total Free Amino Acids in Qingkailing Injection Using High-Performance Liquid Chromatography-Diode Array Detection
Figure 1
Representative HPLC chromatograms obtained from (a) the blank control solution, (b) the mixed standards solution, and (c) QKLI sample solution. Numbers 1–14 were identified as Asp (1), Glu (2), Ser (3), Gly (4), Arg (5), Ala (6), Pro (7), Tyr (8), Val (9), Ile (10), Leu (11), Phe (12), Orn (13), and Lys (14).
