ICP—AES测定花粉中8种微量元素含量的研究

目的探讨电感耦合等离子体原子发射光谱仪（ICP—AES）法检测花粉中微量金属元素的含量，并了解花粉作为营养品对人们的食用价值。方法从石家庄市多处花粉出售市场购买23份不同种类或不同产地的花粉样品，用微波消解法消解这23种花粉样品，利用ICP—AES测定其中的铁、铜、锌、锰、铝、铬、铅及砷8种微量金属元素的含量。结果花粉中含有丰富的营养元素铁、铜、锌和锰，有毒元素镉和铅的含量非常少，砷的含量比较少，铝的含量比较多。8种微量元素在花粉中的加标回收率为93．4％-109．4％，标准偏差为1．11％～4．36％。结论ICP—AES可同时测定花粉中8种微量元素，并省时、省力、检出线低，精密度高。监测市售花粉，可确认花粉是一种很好的营养品。

Determination of 8 Trace Element Contents in Pollens by ICP-AES

Objective] To discuss to the determination of trace element contents in pollens by using ICP-AES method,and understand the nutritional value of pollens.Methods] 23 different types of pollen samples from different areas were bought in various markets in Shijiazhuang city,then they were digested by microwave digestion method,contents of Cd,Cu,Fe,Mn,Zn,Al,Pb and As were determined by ICP-AES.Results] nutrient elements such as Fe,Cu,Zn and Mn were rich in pollens,while the contents of toxic elements Cd and P...