摘要
An analytical column of Agilent ZORBAX SB-Aq (4. 6 mm × 250 mm, 5 μm) was used to establish HPLC fingerprints of Crataegi Fructus (CF) and Crataegi Cuneata Fructus (CCF). With D-quinic acid as the internal reference, a quantitative analysis of multi-components by single marker (QAMS) method of D-quinic acid, L-malic acid, and citric acid hydrate was established. A total of 33 batches of CF and 10 batches of CCF were analyzed by fingerprint similarity analysis, hierarchical cluster analysis (HCA), principal component analysis (PCA), and partial least squares method-discriminant analysis (PLS-DA). Results showed that there were significant differences between CF and CCF in organic acids. The total amount of three organic acids in CF [(13. 02 ± 2. 85)% ] was significantly higher than that in CCF [(7. 02 ± 0. 62)% ]. Among them, the content of citric acid in CF was the highest [(8. 94 ± 2. 00)% ], followed by the L-malic acid. The content of D-quinic acid in CCF was the highest [(6. 32 ± 1. 00)% ]. The research on organic acids in CF and CCF could provide a reference for the quality evaluation and variety optimization of CF. ? 2023 Authors.
-
单位中国药科大学; 天然药物活性组分与药效国家重点实验室