火焰原子吸收分光光谱法测定燕麦片中铁、锰、铜、锌含量

Determination of Fe,Mn,Cu and Zn Elements in Oatmeal by Flame Atomic Absorption Spectrometry

采用HNO3-HClO4(4+1)湿法消解样品,用火焰原子吸收光谱法测定燕麦片中铁、锰、铜、锌的含量。测得铁、锰、铜、锌的回收率分别在98%～100%、99%～101%9、8%～99%9、6%～101%之间。平均回收率为96%～101%,RSD为0.3%～0.9%,表明该方法准确可靠。

To preprocess samples of oatmeal with HNO3-HClO4（4＋1） wet digestion,the contents of Fe,Mn,Cu,Zn in oatmeal can be determined by flame atomic absorption spectrometry,obtaining the recovery rate of 98%～100% for Fe,99%～101% for Mn,98%～99% for Cu,96%～101% for Zn.,and the average rate is 96%～101%,RSD is 0.3%～0.9%.The result of this experiment shows that the method is reliable and accurate for the test.