甜杏仁中微量元素的光谱测定  

Determination of Microelements in Sugary Almond by Flame Atomic Absorption Spectrometry

作　　者：李志洲 

机构地区：[1]陕理工化学与环境科学学院

出　　处：《光谱实验室》2008年第4期584-588,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：陕西理工学院科研资助项目(SLGQD0605)

摘　　要：采用火焰原子吸收光谱法(FAAS)测定了甜杏仁中锰、铁、锌、铜、钴、镁、钠、钾、铅、铬和镍的含量,并用加标回收检验了测定方法的可靠性。结果发现:杏仁中金属元素的回收率在95.00%—108.26%之间;测定的甜杏仁金属元素的含量依次为Na、K、Mg、Zn、Fe、Ni、Mn、Cu、Co、Pb、Cr,其中,甜杏仁中人体必需的微量元素Na、K、Mg、Zn、Fe含量较高。重金属Pb、Cr含量较少。Microelements （Manganese, iron, zinc, copper, cobalt, magnesium, sodium, potassium, lead, chromium and nickel） in the sugary almond were determined by flame atomic absorption spectrometry（FAAS）, and the reliability of the method was tested by the standard recovery. The recovery of microelements are in the range of 95. 00%-108. 26%. The concentration order ofmicroelements in the sugary almond is Na〉K〉Mg〉Zn〉Fe〉Ni〉Mn〉Cu〉Co〉Pb〉Cr. It is interesting to note that the concentrations of necessary microelements, Na, K, Mg, Zn, Fe, are higher, but the heavy metal Pb and Cr are lower.

关 键 词：甜杏仁 微量元素 火焰原子吸收光谱法 

分 类 号：O657.31[理学—分析化学]