基于P&T-GC/MS指纹图谱评价丝束加香滤棒质量的稳定性

目的 形成丝束加香滤棒质量稳定性的评价体系。方法 实验采用吹扫捕集-气相色谱-质谱技术（Purge&Trap-Gas Chromatography-Mass Spectrometry,P&T-GC-MS）结合“中药色谱指纹图谱相似度评价系统”对丝束加香滤棒中特征香味成分进行分析，以建立P&T-GC-MS指纹图谱，并利用欧氏距离法计算其相似度，以及聚类分析法评价不同批次间样品的差异性。结果 相同浓度、不同批次丝束加香滤棒的相似度均高于0.920，表明批次间、批次内样品的质量稳定性较好；各特征香味成分峰面积、保留时间的RSD值均小于1.70%，表明该方法具有良好的精密度、稳定性和重现性；所建的丝束加香滤棒标准指纹图谱与聚类分析结果一致，可将不同浓度的丝束加香滤棒进行有效甄别。结论 该方法可为评价丝束加香滤棒的质量稳定性提供参考依据。

Evaluation of Quality Stability of Tow-flavored Filter Rods Based on P&T-GC/MS Fingerprints

The work aims to form an evaluation system for the quality stability of tow-flavored filter rods. In the experiment, purge & trap-gas chromatography-mass spectrometry (P&T-GC-MS) combined with ''similarity evaluation system of traditional Chinese medicine chromatographic fingerprint'' was used to analyze the characteristic flavor components in the tow-flavored filter rods to establish the P&T-GC-MS fingerprint. Then, the similarity was calculated by Euclidean distance method, and the difference in various batches of samples was evaluated by cluster analysis. The similarity of different batches of tow-flavored filter rods with the same concentration was higher than 0.920 and the quality stability of samples between and in batches was better. The RSD of the peak area and retention time of each characteristic flavor component was lower than 1.70%, indicating that the method had good precision, stability and reproducibility. The established standard fingerprints of the tow-flavored filter rods were consistent with the cluster analysis results, and could effectively identify different concentrations of tow-flavored filter rods. This method can provide a reference for evaluating the quality stability of tow-flavored filter rods.