Comparision of Mineral Elements Contents in Leaves of Different Color Nitraria tangutorum Bobr. Fruits

Eleven mineral elements of the Nitraria tangutorum Bobr. leaves of three different colorful fruits in Qaidam basin were analyzed by ICP-MS. The results showed that differences exist among the contents of these elements in the Nitraria tangutorum Bobr. leaves of different colorful fruits. The highest content of major elements is Na. Among them, the highest contents of total major elements and Na both exist in the leaves of purple fruits. Whereas, the lowest amounts of them are in the leaves of red fruits. As for the trace elements, Fe is in relatively higher amount. The highest and lowest contents of the total trace elements and Fe exist in the leaves of prunosus and purple fruits, respectively. In addition, the contents of hazardous elements (Pb and Cd) in the leaves of three different colorful fruits are low. The experimental method is simple, rapid, accurate and reliable, and can provide basic data for the application of Nitraria tangutorum Bobr. leaves of different colorful fruits.