云南建水草牙中金属元素的光谱测定

摘要

[目的]测定云南建水草牙(Typha lotifolia L.)中8种金属元素的含量,以期为这一资源的开发利用提供科学依据.[方法]采用火焰原子吸收光谱法测定草芽中的Fe、Zn、Cu、Ni、Co、Cd、Pb和Cr元素的含量.[结果]建水草牙分有多种时人体有益的矿物元素,7种金属元素含量顺序为Fe＞Zn ＞Cu＞Ni＞C0＞Cd ＞Pb,Cr未检测出；Fe元素含量较高,而Cu含量相对较低.[结论]建水草牙含矿物元素较丰富.%[Objective ] To determine the content of 8 metal elements in Typha latifolia L. from Jianshui County of Yunnan Province, so at to provide a scientific basis for development and utilization of this resources. [Method] Contents of 8 metal elements including Fe, Zn, Cu, Ni, Co, Cd, Pb and Cr were determined by flame atomic absorption spectrometry. [Result] Typha latifolia L. was rich in various mineral elements to human health. The content ordet of 7 analyzed mineral elements was Fe＞Zn＞Cu＞Ni ＞Co ＞Cd＞Pb. Cr element could not be detected in tested sample. The content( Fe was higher in Typha latifolia L. , while Cu was relatively lower. [ Conclusion ] There were abundant mineral el-ements which were necessary fur people in the Typha latifolia L..