[Characteristic fingerprint analysis and determination of main components on Andrographis paniculata extract by UPLC].

OBJECTIVE: To establish an analytical method for characteristic fingerprint and determination of main components of Andrographis paniculata Extract by UPLC. METHODS: The chromatographic conditions were Waters ACQUITY UPLC BEH-C18 (2. 1 mm x 0 mm,1.7 µm)by gradient elute using acetonitrile-water as mobile phase(0 -2 min,20% ~ 25% A;2 ~ 5 min,25% ~ 35% A;5 ~ 7 min,35% A;7 ~10 min,35%~ 55% A) at a flow rate of 0. 5 min/mL,detecting wavelength at 220 nm. Results:Contents of the andrographolide, neoandrographolide, 14-deoxyandrographolide and 14-deoxy-l11,12-didehydroandrographolide had good resolution with the correlation coefficients exceed 0. 9999 and the average percent recovery lied in 97. 2% to 103.9%, RSD was less than 3.0% (n = 6). The chromatograms of Andrographis paniculata Extract shared seven common peaks in which four of them were recognized by reference standard with the similarities over 0. 9. CONCLUSION: It is a fast,accurate and validated method,and can be useful in quality evaluations of Andrographis paniculata Extract.