论文部分内容阅读
目的:对不同产地百合药材中无机元素进行分析评价。方法:采用微波消解样品,电感耦合等离子体-原子发射光谱法ICP-AES(inductively coupled plasma-atomic emission spectrometer)测定两个主产地35批百合药材中20种无机元素的含量,并用EZ info、SPSS软件对数据进行分析。结果:百合中K、P、Mg、Ca、Na、Si、Fe、Al元素含量较高,含量范围分别为7.200×10~3~1.955×10~4μg·g~(-1),1.114×10~3~2.982×10~3μg·g~(-1),450.525~772.953μg·g~(-1),276.633~827.536μg·g~(-1),51.884~871.821μg·g~(-1),47.523~540.714μg·g~(-1),46.847~595.202μg·g~(-1),20.592~264.639μg·g~(-1),所有样品中均未检测到Hg。以20种元素含量为变量,进行主成分分析,绘制PCA(principal components analysis)得分图,35批百合药材被分成以产地为区分的两组。再结合直观的变量重要性投影值VIP(variable importance in the projection)处理结果综合给出各变量的权重系数,得出两产地主要的差异性元素为:K、P、Fe、Si、Na。结论:研究结果可为百合药材的种植栽培与质量控制提供依据。
Objective: To analyze and evaluate the inorganic elements in lily herbs in different areas. Methods: Twenty kinds of inorganic elements in 35 batches of Lilium were determined by inductively coupled plasma-atomic emission spectrometer (ICP-AES) with microwave digestion samples and analyzed by EZ info, SPSS The software analyzes the data. Results: The contents of K, P, Mg, Ca, Na, Si, Fe and Al in lily were higher than those in lily, and the contents ranged from 7.200 × 10-3 to 1.955 × 10-4 μg · g -1, 1.114 × 10 ~ 3 ~ 2.982 × 10 ~ 3μg · g -1, 450.525 ~ 772.953μg · g -1, 276.633 ~ 827.536μg · g -1, 51.884 ~ 871.821μg · g -1 ), 47.523 ~ 540.714μg · g ~ (-1), 46.847 ~ 595.202μg · g ~ (-1) and 20.592 ~ 264.639μg · g ~ (-1), respectively. No Hg was detected in all the samples. The principal component analysis (PCA) was performed using 20 elements as variables, and PCA (principal components analysis) score was drawn. 35 batches of Lilium were divided into two groups, which were distinguished by their origin. Combined with the variable importance in projection (VIP), the weight coefficients of each variable are given. The main differences among the two producing areas are K, P, Fe, Si and Na. Conclusion: The results provide the basis for the cultivation and quality control of lily herbs.