[分光光度法测定宝塔花中的微量元素]

[Spectrometric determination of trace elements in pagoda flower].

作者信息

Fan Wen-xiu, Li Xin-zheng

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. 2005 Oct;25(10):1714-6.

PMID:16395922

Abstract

The twelve trace elements in the pagoda flower, including K, Na, Ca, Mg, Pb, Cd, Cu, Mn, Co, Zn, Cr and Fe were determined simultaneously by FAAS. The relative standard deviation of the method is 0.07%-2.31%, and the recovery is 97.0%-107.0%. The analytical results were satisfactory. The results showed that there were comparatively rich metal elements in the pagoda flower. Proportions of the twelve elements are in the order that K > Ca > Mg > Na > Fe > Zn > Cu > Mn > Co > Pb > Cr > Cd. It implied that the nutritive value of the pagoda flower is high.

摘要

采用火焰原子吸收光谱法（FAAS）同时测定了宝塔花中钾（K）、钠（Na）、钙（Ca）、镁（Mg）、铅（Pb）、镉（Cd）、铜（Cu）、锰（Mn）、钴（Co）、锌（Zn）、铬（Cr）和铁（Fe）这12种微量元素。该方法的相对标准偏差为0.07% - 2.31%，回收率为97.0% - 107.0%。分析结果令人满意。结果表明，宝塔花中金属元素含量较为丰富。这12种元素的含量比例顺序为K＞Ca＞Mg＞Na＞Fe＞Zn＞Cu＞Mn＞Co＞Pb＞Cr＞Cd。这表明宝塔花具有较高的营养价值。