| 程友斌,王政,褚朝森,等.绵马贯众及其伪品的红外指纹图谱鉴别[J].安徽医药,2022,26(9):1739-1743. |
| 绵马贯众及其伪品的红外指纹图谱鉴别 |
| Identification of infrared fingerprints of Rhizoma Dryopteris Crassirhizomae and its counterfeit products |
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| DOI：10.3969/j.issn.1009-6469.2022.09.010 |
| 中文关键词: 鳞毛蕨科 主成分分析 绵马贯众 红外光谱 鉴别 聚类分析 |
| 英文关键词: Dryopteridaceae Principal component analysis Rhizoma Dryopteris Crassirhizomae Infrared spectroscopy Identification Cluster analysis |
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| 中文摘要: |
| 目的建立绵马贯众的红外指纹图谱和化学模式识别模型，为绵马贯众的质量评价和控制方法提供新的参考。方法自2019年10月至2020年11月期间，应用红外光谱技术结合二阶导数、相似度计算、聚类分析和主成分分析方法对红外谱图进行分析。结果绵马贯众9批样品相似度在0.96以上，在红外谱图1 554~1 494 cm-1波段可将正伪品进行区分，聚类分析中在欧式距离平方和为5时绵马贯众与所有伪品清晰归为5类，结果与二阶导数和主成分分析相一致。结论利用建立的绵马贯众及其伪品红外光谱图与化学模式识别模型，可快速评定不同产地绵马贯众的一致性和真伪性，适用于对绵马贯众质量的评价。 |
| 英文摘要: |
| Objective An infrared fingerprint and chemical pattern recognition model of Rhizoma Dryopteris Crassirhizomae was established to provide a new reference for quality evaluation and control methods.Methods From October 2019 to November 2020, the nfrared spectra were analyzed using infrared spectroscopy techniques combined with second derivative, similarity calculation, cluster analysis and principal component analysis.Results The similarity of the 9 batches of samples of Rhizoma Dryopteris Crassirhizomae is above 0.96 and the genuine and fake products can be distinguished in the infrared spectrum of 1 554 cm-1 to 1 494 cm-1. In the cluster analysis, when the sum of squares of the Euclidean distance is 5, all the fakes of Rhizoma Dryopteris Crassirhizomae are clearly classified into 5 categories, and the results are consistent with the second derivative and principal component analysis.Conclusion Using the established infrared spectra and chemical pattern recognition model of Rhizoma Dryopteris Crassirhizomae and its fake products, the consistency and authenticity of Rhizoma Dryopteris Crassirhizomae in different origins can be quickly assessed, which is suitable for evaluating the quality of Rhizoma Dryopteris Crassirhizomae. |
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