UPLC fingerprint and chemical pattern recognition of Salvia miltiorrhiza stems and leaves from different habitats / 中草药

ABSTRACT

Objective: To study and establish the UPLC of Salvia miltiorrhiza stems and leaves (SMSL) and analyze the specific peaks composition by ESI-QTOF/MS, and provide scientific basis for the comprehensive development and utilization of resources SMSL. Methods: The fingerprint of SMSL was established by UPLC, the samples were conducted by Acquity UPLC BEH C18 (100 mm×2.1 mm, 1.7 μm) and eluted with acetonitrile and 0.1% formic acid at the flow rate of 0.4 mL/min. The detection wavelength was set at 280 nm and column temperature was 35℃. Negative ion mode was chosen for qualitative analysis. The capillary voltage was set at 3.0 kV. The nebulization gas was set to 800 L/h at 400℃, and the source temperature was 120℃. The similarity evaluation, cluster analysis (CA), and principal component analysis (PCA) were used to deal with the experimental data, in order to find out the similarities and differences among the 12 batches of SMSL from five different areas. Results: The specific chromatogram of SMSL was obtained, and 13 common peaks were identified by ESI-QTOF/MS. Similarities of the 12 batches of samples were 0.823-0.997, the results of CA and PCA were consistent with similarity evaluation. Conclusion: The establishment of UPLC fingerprint of SMSL and the application of chemical pattern recognition can provide a more comprehensive reference for the quality control of SMSL and the utilization value of non-medicinal parts of S. miltiorrhiza.