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目的:利用电子鼻技术研究进口与国产血竭的气味检测方法,采用判别因子分析(DFA)方法,以达到准确、快速鉴别进口与国产血竭的目的。方法:通过正交试验对进口与国产血竭样品粉碎粒度、检测样品量、顶空进样量、孵化时间、孵化温度等重要因素进行筛选,确定进口与国产血竭电子鼻检测的最佳条件;并采用DFA判别模型对数据进行分析。结果:建立了进口与国产血竭的电子鼻检测方法,得到二者气味识别指纹图谱,建立了进口与国产血竭的DFA判别模式。结论:本实验采用电子鼻技术建立了进口与国产血竭准确而快速的鉴别方法,为中药真伪的快速鉴别及气味的科学化、标准化研究提供了新的思路。
OBJECTIVE: To study the odor detection methods of imported and domestic dried blood by electronic nose technology and to use the discriminant factor analysis (DFA) method to achieve the purpose of accurate and rapid identification of imported and domestic dried blood. Methods: The orthogonal test was used to screen the important factors such as the particle size, the sample size, the sample volume in the headspace, the incubation time and the hatching temperature of the blood samples from imported and domestic DRGs. The optimal conditions ; And using DFA discriminant model to analyze the data. Results: The method of electronic nose detection for imported and domestic blood was established, and the fingerprint of the odor was identified. The DFA discriminant model of imported and domestic blood was established. Conclusion: The method of electronic nose was used in this experiment to establish the accurate and rapid identification method of imported and domestic blood serum, which provided a new idea for the rapid identification of authenticity of Chinese medicine and the scientific and standardization of odor.