ICP-AES法分析蜂花粉中10种金属元素及含量调查

目的对蜂花粉中金属元素进行含量调查,进一步评价蜂花粉作为营养品的食用价值和副作用,同时探究不同蜜源或者产地的蜂花粉中金属元素含量是否具有显著性差异。方法从石家庄市各花粉专卖店购买71份不同蜜源或不同产地的蜂花粉样品,用微波消解法进行样品前处理,利用电感耦合等离子体发射光谱仪(ICP-AES)测定其中的铬、锌、铜、锰、镉、铁、铅、锂、铝、锶10种金属元素的含量。结果蜂花粉中铁、锌的含量是非常丰富的,同时含有少量的铜和对人体有益的金属元素铬、锂、锶;金属元素锰在大部分蜂花粉中含量并不高,但在山茶蜂花粉中含量很高;而有毒元素铅、镉的含量很低,但铝的含量比较高,特别在荞麦蜂花粉、野苦菜花蜂花粉、猕猴桃蜂花粉、杏花蜂花粉、山芝麻蜂花粉、香瓜蜂花粉、蒲公英蜂花粉中含量尤其高。10种金属元素在蜂花粉中的加标回收率为88.4%～109.7%,标准偏差为1.34%～3.63%。结论蜂花粉是一种很好的营养品,但不同蜜源或者产地的蜂花粉成分有较大差异,故不同人群应根据自身状况选择合适品种的蜂花粉食用,才可达到保健作用。

Analysis on 10 metallic elements and contents in bee pollens by ICP-AES

Objective To analyze metallic elements contents in bee pollens,further evaluation the dietary property and side effects of bee pollens as nourishment.At the same time,to study the contents whether had significant difference between different nectar sources and origins.Method 71 kinds of bee pollens from different species and origins were bought from Shijiazhuang's market.Microwave digestion used to pretreatment the samples,ICP-AES was applied to analyze the contents of Cr,Zn,Cu,Mn,Cd,Fe,Pb,Li,Al and Sr.Resu...