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采用硝酸-高氯酸湿法消解对枸杞蜂蜜、益母草蜂蜜、塞北蜂蜜、五味子蜂蜜、黄芪蜂蜜、枣花蜂蜜和洋槐蜂蜜进行前处理,用火焰原子吸收分光光度法测定了蜂蜜中钙、铁、钠、镁、锌、铜、钾和锰8种金属元素的含量,并对枸杞蜂蜜中的金属元素进行了加标回收试验。结果表明,这7种蜂蜜中Ca的含量为0~93.856μg/g,Fe的含量为0~8.403μg/g,Na的含量为46.095~1 746.519μg/g,Mg的含量为6.727~25.488μg/g,Zn的含量为0.402~4.827μg/g,Cu的含量为0~0.351μg/g,K的含量为0~0.351μg/g,Mn的含量为0~3.848μg/g;得到的8种金属元素相关系数在0.990 5~0.999 1之间。枸杞蜂蜜中各金属元素加标回收率在94.70%~105.20%之间,相对标准偏差在0.89%~3.76%之间。
Pretreatment of medlar, motherwort, motherwort, honey, Astragalus membranaceus, Chinese date honey and acacia honey by nitric acid-perchloric acid wet digestion method was used to determine the contents of calcium, iron and calcium in honey by flame atomic absorption spectrophotometry Sodium, magnesium, zinc, copper, potassium and manganese content of the metal elements, and the wolfberry honey metal elements were spiked recovery test. The results showed that the contents of Ca, Ca and Ca in the seven kinds of honey were 0 ~ 93.856μg / g, 0 ~ 8.403μg / g, 46.095 ~ 1 746.519μg / g and 6.727 ~ 25.488μg / g, the content of Zn is from 0.402 to 4.827 μg / g, the content of Cu is from 0 to 0.351 μg / g, the content of K is from 0 to 0.351 μg / g, and the content of Mn is from 0 to 3.848 μg / g; The correlation coefficients of the metal elements ranged from 0.990 5 to 0.999 1. The recoveries of various metal elements in the wolfberry honey ranged from 94.70% to 105.20% with the relative standard deviations between 0.89% and 3.76%.