Quality analysis of Xiao'er Magan granules based on chemometrics combined with quantitative analysis of different components
Objective To analyse the quality of Xiao'er Magan granules by the combination of chemometrics and difference analysis of component content.Methods The ultra-performance liquid chromatography/quadrupole time-of-flight-tandem mass spectrometry(UPLC-Q-TOF/MS)method was used to study the characteristic spectrum of basic components.The partial least squares discriminant analysis was used to quantify and screen the markers of quality difference,the methods of muti-component quantification for differential components and fingerprint were established,and the principal component analysis was used to calculate the comprehensive scores of principal components.Results The 12 common peaks were identified by the characteristic spectrum,which were attributed to 6 medicinal herbs,namely Rhizome,Mulberry bark,Bitter almond,Licorice,Perilla seed and Scutellaria.Taking the variable importance projection value＞1 as the criterion,4 characteristic components of quality differences(mulberry A,amygdalin,rosmarinic acid and baicalin)were screened out.The fingerprints similarity of 45 batches of samples were 0.867-0.997.14 components were calibrated,and 8 components were identified,which were mulberroside A,L-amygdalin,amygdalin,rosmarinic acid,baicalin,oroxindin,baicalein and wogonin.The scores of principal component 1 of each enterprise were as follows:G＞H＞A＞C＞E＞D＞F＞I＞B.The scores of principal component 2 were as follows:F＞G＞H＞B＞E＞D＞C＞A＞I.The ranking of the comprehensive scores was as follows:G＞H＞C＞A＞E＞F＞D＞I＞B.Conclusion The preparation quality of enterprise G and H is the best.The established fingerprint and quantitative method of quality differential components are accurate and reliable,which can provide reference for the quality analysis of Xiaoer Magan granules.
Xiao'er Magan granulesChemometricsFingerprintsDifference analysis of component contentUltra-performance liquid chromatography/quadrupole time-of-flight-tandem mass spectrometryQuality analysis
万方数据
维普
