麦饭石是一种天然矿物药石。其化学成分相当复杂,由三、四十种化学元素和许多化合物组成。它不仅能吸附水中的无机物、有机物和细菌,而且能溶解出许多矿物质,例如:硅、钙、钠、镁、钾等宏量元素和钛、钒、锗、镧、铈、硒等微量元素。本工作表明,在水中麦饭石还能溶出微量氨基酸。 Medical stone is a natural mineral medicine stone. The chemical composition is quite complex, composed of three or forty chemical elements and many compounds. It not only can absorb inorganic, organic and bacteria in water, but also can dissolve many minerals such as macro elements such as silicon, calcium, sodium, magnesium and potassium and trace elements such as titanium, vanadium, germanium, lanthanum, cerium and selenium element. This work shows that medical stone in water can dissolve trace amino acids.