ICP-MS法测定不同产地乌梅无机元素含量

目的建立电感耦合等离子体质谱法(ICP-MS)同时测定乌梅中16种无机元素的方法,对乌梅进行分析和评价。方法样品经微波消解后,采用ICP-MS法测定乌梅16种无机元素含量,运用SPSS 21.0对数据进行主成分分析(PCA)和相关分析。结果乌梅间无机元素的组成大体相同,16种元素中以K、Ca、Mg、Na、Fe、B含量较为丰富。通过PCA,27批相同产地的乌梅样品均聚在一起,表明乌梅中无机元素含量的差异与产地的生态环境有一定关系,而品种间的差异并不明显。乌梅的特征元素为Cu、Zn、Ca、Mg,综合分析四川地区的无机元素得分较高。结论本研究建立了准确高效分析评价不同产地乌梅中无机元素的方法,为乌梅的品种选育、质量控制和综合利用提供科学依据。

Simultaneous determination of inorganic elements in Mume Fructus from different regions by ICP-MS

Objective To establish an inductively coupled plasma mass spectrometry (ICP-MS) method for the simultaneous determination of 16 inorganic elements of Mume Fructus, and the elements were analyzed and evaluated. Methods ICP-MS was used to determine the content of 16 inorganic elements in the samples after microwave digestion. Principal component analysis (PCA) and correlation analysis were performed using SPSS21.0. Results There were no differences in the types of inorganic elements in the samples of Mume Fructus, and the content of K, Ca, Mg, Na, Fe and B was abundant in the 16 elements. Through principal component analysis, 27 batches of samples from the same origin were all clustered together, indicating that the difference of inorganic element content was related to the ecological environment of the origin, but the difference between varieties was not obvious. The characteristic elements of Mume Fructus were Cu, Zn, Ca, Mg, and the results showed that the scores of samples from Sichuan was the highest. Conclusion This study established an accurate and efficient method for the analysis and evaluation of inorganic elements in Mume Fructus from different habitats, which provided a scientific reference for the breeding, safety evaluation, and comprehensive utilization of Mume Fructus resource.