ABSTRACT
Objective: To establish a method for the determination of seven organic acids, one flavone and two iridoid terpenoids in Lonicerae Japonicae Flos from different habitats. Methods: The content of 10 components in Lonicerae Japonicae Flos from different habitats were determined by ultra-performance liquid chromatography (UPLC). The mobile phase for gradient elution was 0.1% phosphoric acid solution (A)- methanol (B); The flow rate was 0.3 mL/min, and the column temperature was 30 ℃. Results: A UPLC method for simultaneous determination of seven organic acids, one flavone and two iridoid terpenoids in Lonicerae Japonicae Flos was established. Principal component analysis (PCA) and partial least squares method (PLS-DA) were used to analyze the distribution and characteristics of 10 constituents of Lonicerae Japonicae Flos collected from different habitats; Three production areas of Shandong, Jiangsu and Shaanxi are respectively grouped into one group. Conclusion: The method is stable and feasible, which could be used as a reference for evaluating the quality of Lonicerae Japonicae Flos in a more comprehensive way.