[火焰原子吸收光谱法测定南瓜中的微量元素]

[Determination of trace elements in pumpkin by FAAS].

作者信息

Fan Wen-xiu, Li Xin-zheng, Jing Rui-jun

机构信息

Department of Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China.

出版信息

Guang Pu Xue Yu Guang Pu Fen Xi. 2006 Mar;26(3):567-70.

PMID:16830783

Abstract

Conditions for simultaneous determination of multi-trace elements in pumpkin by FAAS were studied. K, Ca, Mg, Na, Zn, Cu, Mn, Fe, Co and Cr in different parts and different growth periods of pumpkin were determined, the relative standard deviation of the method is between 0.1% and 2.6%, and the recovery is between 96.7% and 106.5%. Analytical results were satisfactory. The results showed that some elements essential to human such as K, Ca, Mg, Zn, Cr and Mn in pumpkin are abundant, implying that the nutritive value of pumpkin is high.

摘要

研究了火焰原子吸收光谱法（FAAS）同时测定南瓜中多种微量元素的条件。测定了南瓜不同部位和不同生长时期的钾、钙、镁、钠、锌、铜、锰、铁、钴和铬，该方法的相对标准偏差在0.1%至2.6%之间，回收率在96.7%至106.5%之间。分析结果令人满意。结果表明，南瓜中钾、钙、镁、锌、铬和锰等一些人体必需元素含量丰富，这意味着南瓜的营养价值很高。