Researchers established chemical fingerprints for 18 batches of Shentong Zhuyu Decoction (SZD) using UPLC, identifying 16 common peaks and assessing similarities with a specialized evaluation system.
Cluster analysis, principal component analysis, and partial least square discriminant analysis were employed to categorize the samples into two groups, pinpointing 11 influential components.
Notable disparities were found among five key components, and the study emphasizes that combining multi-component analysis with fingerprinting is effective for quality control of SZD standards.