应用ICP-MS测定不同种类蜂蜜中的微量元素和重金属

蜂蜜含有丰富的人体必需的微量元素,但是不同品种蜂蜜间微量元素的含量差别研究较少。应用ICP-MS分析了不同蜂蜜种类中微量元素和重金属的含量。结果表明蜂蜜中含有丰富的Ca,Fe,Zn,Mn,Cu,Se和Mo等微量元素,不同品种间差别较大。所测定的六种蜂蜜中Ca,Fe,Zn,Mn,Cu,Se和Mo含量最高的分别是枣花蜜、枸杞蜜、苦瓜蜜、苦瓜蜜、荔枝蜜、荔枝蜜和枸杞蜜,达到了132.79,24.38,4.60μg.g-1.FW,2 930.10,480.02,29.39和3.45 ng.g-1.FW。各种蜂蜜中重金属的含量较少,As和Pb的含量在30 ng.g-1.FW以下,Hg,Cd和Cr的含量更低,在10 ng.g-1.FW以下,且品种间差别不大。说明蜂蜜营养丰富,食用安全性高,但是不同人群应当根据需要选择适合自己的品种。

Application of ICP-MS to Detection of Trace Elements and Heavy Metals in Different Kinds of Honey

Honey contains abundant trace elements, which are important nutritional elements for human health, but the difference between different species has not been reported. Seven kinds of trace elements and five kinds of heavy metals in different honey species were analyzed by the method of ICP-MS. The results showed that honey contained many wholesome elements, such as Ca, Fe, Zn, Mn, Cu, Se and Mo, but there was great difference between different species. The highest concentrations of Ca, Fe, Zn, Mn, Cu, Se and Mo were 132.79 micorg x g(-1) x FW (jujube flower honey), 24. 38 microg x g(-1) x FW (medlar flower honey), 4.60 microg x g(-1) x FW (balsam pear flower honey), 2930.10 ng x g(-1) x FW (balsam pear flower honey), 480. 02 ng x g(-1) x FW (lychee flower honey), 29.39 ng x g(-1) x FW (lychee flower honey) and 3. 45 ng x g(-1) x FW (medlar flower honey) respectively. Honey contains little heavy metals, the concentrations of As and Pb are below 30 ng x g(-1) FW, and those of Hg, Cd and Cr are not higher than 10 ng x g(-1) x FW. The conclusion is that honey is a wholesome and safe food.