ICP-MS用于云南南部四种特色蜂蜜的植物源鉴别分析

发布时间：2018-03-07 21:52

本文选题：云南　切入点：蜂蜜　出处：《光谱学与光谱分析》2016年01期 　论文类型：期刊论文

【摘要】：采用电感耦合等离子体质谱(ICP-MS)技术结合化学计量学分析技术对采自云南南部的四种特色蜂蜜中的23种矿物元素进行了分析。结果表明:ICP-MS技术测定蜂蜜中多种矿物元素含量的稳定性、精确度较好,回收率较高;23种矿物元素中有21种元素(Na,Mg,K,Ca,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Se,Sr,Mo,Cd,Sb,Ba,Tl,Pb)在不同蜂蜜品种间存在显著差异;主成分分析结果显示,前4个主成分的累积方差贡献率达到77.74%,第一主成分中的Mg,Ca,Mn,Co,Sr,Cd,Ba七种元素包含大部分蜂蜜信息;通过逐步判别分析,Mg,K,Ca,Cr,Mn,Sr,Pb共七种元素被筛选出来并用于建立判别函数模型,对所建模型进行回代检验和交叉检验,正确判别率分别为90%和86.7%,表明多元素指标对云南南部四种特色蜂蜜植物源的判别效果较好。鉴于所采蜂蜜样品都来自云南南部,气候和土壤等环境条件类似,四种蜂蜜中矿质元素的差异主要与对应的蜜源植物有关,因此,利用矿质元素差异鉴别蜂蜜植物源具有可行性。
[Abstract]:In this paper, 23 mineral elements in four kinds of special honey collected from southern Yunnan were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and chemometrics. The results show that the determination of many minerals in honey by the ICP-MS technique is based on the ICP-MS technique. Stability of element content, Among the 23 mineral elements with higher recovery rate, 21 elements (NaMg-Mg-KPb) were found to have significant differences among different honey varieties, and the results of principal component analysis showed that: (1) there were significant differences among different honey varieties. The results of principal component analysis showed that: (1) there were significant differences between different honey varieties. The results of principal component analysis showed that: (1) there were significant differences between different honey varieties. The results of principal component analysis (PCA) showed that there were significant differences between different honey varieties. The cumulative variance contribution rate of the first four principal components was 77.74. The seven elements of the first principal component, MgCa-Ca-MnCo-Co-Sr-CD-Na, contained most of honey information, and seven elements were screened out by stepwise discriminant analysis and used to establish a discriminant function model. The correct discriminant rates of the models were 90% and 86.7, respectively, which indicated that the multi-element indexes had better discriminant effect on the plant origin of four kinds of characteristic honey in southern Yunnan, whereas the honey samples were collected from the south of Yunnan Province, and all the samples were from the south of Yunnan Province, and the results showed that all the honey samples were collected from the south of Yunnan Province. The difference of mineral elements in the four kinds of honey is mainly related to the corresponding honey source plants, so it is feasible to identify the honey plant source by using the difference of mineral elements.
【作者单位】：中国农业科学院蜜蜂研究所;农业部蜂产品质量安全风险评估实验室;云南省农业科学院;清华大学化学系;
【基金】：国家自然科学基金项目(31172274,31372385) 现代蜂产业技术体系(CARS45) 公益性行业(农业)专项项目(201203046)资助
【分类号】：S897;O657.63

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