Abstract:
HNO3HClO4 method was applied to digest samples and the contents of essential elements in Jatropha Curcas seeds collected from different localities in Yunnan Province were determined by ICPOES.The results showed that the contents of four trace elements in the J.curcas seeds were: Fe 35-134 μg/g, Cu 26-37 μg/g, Zn 54-126 μg/g, Mn 15-41 μg/g.The other elements contained in J.curcas seeds were Ca 5331-7428μg/g, Mg 9 909-11 817 μg/g, K 12735-14503μg/g, P 17240-19239μg/g.It was indicated that the J.curcas seeds contained plentiful of essential elements.