玫瑰花口服液的红外指纹图谱及化学模式识别

Fingerprint Infrared Spectrum on Rose Oral Liquid and Its Chemical Pattern Recognition

目的:采用红外光谱和化学模式识别相结合建立了玫瑰花口服液质量评价的方法。方法:以11批玫瑰花口服液和4种伪品作红外光谱分析,对主要吸收峰进行指认,获得红外指纹图谱,并按不同特征吸收峰位下的透射比进行相似度计算,通过相似度分析对11批玫瑰花口服液及4种伪品的红外图谱一致性进行了考察,并把获得的指纹图谱采用系统聚类分析和主成分分析进行化学模式识别。结果:11批玫瑰花口服液红外指纹图谱一致性良好,玫瑰花口服液及伪品通过相似度分析和化学模式识别均能够很好地区分开来,相似度和聚类分析、主成分分析结果相一致,2种化学计量方法具有良好的相关性。结论:结果表明该方法是鉴别玫瑰花口服液真伪的有效方法。

Objective： To establish a system on the quality assessment of Rose oral liquid on the combination of chemical pattern recognition. Method： Selecting the infrared spectrograms of 11 batches of Rose oral liquid and 4 kinds of counterfeit to analysis,the primary peaks were deciphered,obtained the fingerprint infrared spectrum,Moreover,according to transmittance of the different characteristic absorption peaks, the similarity was calculated,the consistency of the infrared spectrograms of 11 batches of Rose oral liquid and 4 kinds of counterfeit was investigated by similarity. The fingerprints were obtained and were handled by hierarchical clustering analysis and principal component analysis. Result： The results showed that the infrared spectrograms of11 batches of Rose oral liquid for were not only in good agreement,but also Rose oral liquid and counterfeit could completely be distinguished by similarity analysis and chemical pattern recognition,and the result of similarity was the same as cluster analysis or principal component analysis,the two methods of chemometrics showed good correlation. Conclusion： The method was convenient for differentiation of counterfeit and applicable to quality evaluation of Rose oral liquid.