Microelements and rare-earth element in the Calophyllum membranaceurn Gardn leaves were determined by element Plasma Mass Spectrometer. Totally, the content of 47 kinds of elements were measured by ICP-MS.

• 摘要利用元素等离子体质谱仪(ICP-MS)测定薄叶红厚壳叶中的微量和稀土元素，共测定了47种元素的含量。