[Determination of metal elements in whole Tetraena Mongolia Maxim from West Erdos Region of Inner Mongolia by ICP-AES].
The sand storm has become a global environmental problem. Since desert woody plants have many special biological characteristics, they play an important role in improving ecological environment and so on. In the present paper, the contents of ordinary and trace metal elements in whole Tetraena Mongolia Maxim, which only exists in West Erdos Region of Inner Mongolia in the world and is protected and endangered national second-class species, were determined by ICP-AES technique and compared with other desert woody plants. The results indicated that the ordinary elements Ca, K, Mg, Na and Al and the trace elements essential to plant vital activities, such as Fe, Mn, Cu and Zn show different content orders in different parts of the plant. For example, the content orders are Ca>Na>Mg>Al>K>Fe>Cu>Mn>Zn for both main root and old root. In twig and leaf, however, the order is Ca>Na>Mg>Al>K>Fe>Mn>Cu>Zn, while in fibrous root the order is K>Ca>Na>Mg>Al>Fe>Cu>Mn>Zn. The element contents of Mn and Zn are lower than the average content of terrestrial plants. The recovery ratio obtained by standard addition method ranged between 94.98% and 120.0%, and its RSD was lower than 3. 5% with a good precision. The results provide theoretical directions for protecting and exploiting vegetable resource of the endangered and wilding plant.
Liu
Ying
Y
College of Life and Environmental Science, Central University for Nationalities, Beijing 100081, China. ly@imnu.edu.cn
Li
Jing-feng
JF
Feng
Jin-zhao
JZ
D002681:China; D019684:Magnoliopsida / Q000737:chemistry*; D008670:Metals / Q000032:analysis*; D018514:Plant Structures / Q000737:chemistry; D013054:Spectrophotometry, Atomic / Q000379:methods*; D014131:Trace Elements / Q000032:analysis*
D008670:Metals; D014131:Trace Elements