In order to establish a high performance liquid chromatographic (HPLC) method for the analysis of anthocyanin-like substances in tea, six typical anthocyanins (delphinidin, cyanidin, petunidin chloride, pelargonidin, paeonidin and malvidin) were used as the targets, and Cosmosil 5C18-AR-Ⅱ chromatographic column (250 mm×4.6 mm, 5 μm) was used with the mobile phases of 0.5% formic acid in water and 100% acetonitrile as mobile phases A and B, respectively. The column temperature was 35 ℃, the flow rate was 0.8 mL·min-1, the detection wavelength was 525 nm, and the injection volume was 20 μL. Under the analytical conditions, the anthocyanin components were well separated. In a certain range, the linear relationship was significant, and the correlation coefficient square (R2) was above 0.999 0. The relative standard deviations (RSD) of the repeatability, precision and stability tests were in the range of 1.20%-1.40%, 1.15%-2.12% and 1.35%-3.38%, respectively. The results of the spiked recovery test show that the average recoveries of the anthocyanin components were in the range of 86.08%-110.34% with an RSD between 0.24% and 6.13%. The method has good reproducibility, precision and stability, and can detect the contents of anthocyanin-like substances in tea.
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