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Position: Home > Articles > Determination of Trace Elements in Walnut Journal of Anhui Agricultural Sciences 2012,40 (16) 165-167

核桃微量元素含量的测定

作  者:
朱冬;王磊;李超;郑晓程;唐志华
单  位:
陕西理工学院化学与环境科学学院
关键词:
微波溶样;核桃;火焰原子吸收光谱法;微量元素
摘  要:
[目的]研究核桃中的微量元素,为核桃的开发应用提供依据。[方法]采用微波消解溶样,用火焰原子吸收光谱法(FASS)测定了核桃中K、Ca、Mg、Cu、Mn、Zn、Fe 7种微量元素的含量。[结果]核桃中Zn、Cu、Mn、Fe、Mg、K、Ca 7种微量元素含量依次为56.25、36.50、34.50、102.00、280.75、1 929.50、452.50μg/g,回收率在98.6%~100.9%,除了Ca和Cu的测定存在一定的误差,其他元素的RSD在0.03%~1.30%。[结论]该方法所用仪器设备简单,操作步骤方便,结果令人满意。
译  名:
Determination of Trace Elements in Walnut
作  者:
ZHU Dong et al(School of Chemical and Environment Science,Shaanxi University of Technology,Hanzhong,Shaanxi 723001)
关键词:
Microwave digestion;Walnut;FAAS;Trace elements
摘  要:
[Objective] To study the content of trace elements in walnuts and provide basis for its development and utilization.[Method] The walnuts samples were firstly digested with microwave,and the contents of seven trace elements,including K,Ca,Mg,Cu,Mn,Zn and Fe,were determined by FASS.[Result] The contents of Zn,Cu,Mn,Fe,Mg,K and Ca were 56.25,36.50,34.50,102.00,280.75,1 929.50 and 452.50 μg/g with the recoveries between 98.6% and 100.9%.Apart from Ca and Cu whose determination had errors,the RSD of other elements was in the range of 0.03%-1.30%.[Conclusion] The instrument in the experiment is simple and easy with satisfactory results.

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