WU Min-shan,XIE Can-hui,XIAO Guan-lin,JIN Li-li,BI Xiao-li,XIE Yu-jun,WANG Yuan-ping,XU Ai-li.Study on the Quality Evaluation of Pingtiao Granules by UPLC Fingerprint Combined with Chemometrics[J].Journal of Instrumental Analysis,2025,44(07):1290-1298.
WU Min-shan,XIE Can-hui,XIAO Guan-lin,JIN Li-li,BI Xiao-li,XIE Yu-jun,WANG Yuan-ping,XU Ai-li.Study on the Quality Evaluation of Pingtiao Granules by UPLC Fingerprint Combined with Chemometrics[J].Journal of Instrumental Analysis,2025,44(07):1290-1298. DOI: 10.12452/j.fxcsxb.24122022.
Study on the Quality Evaluation of Pingtiao Granules by UPLC Fingerprint Combined with Chemometrics
The study integrated the fingerprinting technique,multi-indicator determination of the content of each component,at the same time,chemical pattern recognition analysis to systematically explore the characteristics of different batches of Pingtiao granules and to provide a scientific basis for their quality assessment. The analytes were separated on an ACQUITY UPLC BEH Shield RP C
18
column(150 mm×2.1 mm,1.7 μm) by gradient elution,with 0.1% aqueous phosphoric acid-acetonitrile as the mobile phase. A total of seven characteristic components were identified,and the contents of six active components,including gastrodin,paeoniflorin,Parishin A,Parishin E,pinoresinol diglucoside and quercetin were determined. Additionally,the 17 batches of Pingtiao granules were classified by cluster analysis(HCA) and principal component analysis (PCA),and then subjected to orthogonal least partial squares-discriminant analysis(OPLS-DA),in order to screen out the different components among the batches of the samples. The UPLC fingerprints of Pingtiao granules and the determination of the contents of 6 index components were established. 15 common peaks were identified and 7 components were designated,and the similarity of the 17 batches was greater than 0.9. The results of HCA and PCA showed that the components of the 17 batches were clustered into 3 categories,and the OPLS-DA analysis screened out 3 markers that caused the differences between batches. The determination of multi-component conte
nt showed that the differences in chemical content between batches were small. The established UPLC fingerprints and the method for determining the content of the six index components ensure their accuracy and reliability. When combined with the chemical pattern recognition technique,this method can be effectively applied to the quality monitoring and evaluation of Pingtiao granules.
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