Abstract: Macro-elements and trace elements in whole body, muscle and skin of Laudakia stoliczkana and Laudakia tarimensis from Xinjiang were determined with the atomic absorption spectrometry. The results showed that the contents of element K, Ca, Na, Mg, Fe, Zn, Sr, Mn, Cr, Br, Cu, Co, and Mo are rich in both Laudakia stoliczkana and Laudakia tarimensis; whereas the contents of harmful elements Pb , Cd ,Co, and Ni is very low. There are no significant differences among the three samples such as the whole body ,muscle and skin in the same species, but the contents of the trace element in the whole body are higher than those of the other two samples. Compared with the contents of trace elements necessary for human health and anticancer function of Fe, Zn, Sr and Mn in the two Laudakia species, 168.36, 94.14, 78.12 and 44.28μg/g are found in the Laudakia stoliczkana, respectively and 338.22, 183.16, 88.44 and 32.46μg/g in the Laudakia tarimensis, respectively. The contents of Fe, Zn, Sr are distinctly higher than these of Laudakia stoliczkana, but the content of Mn in the Laudakia tarimensis is lower than that of the Laudakia stoliczkana. Both Laudakia stoliczkana and Laudakia tarimensis as Chinese medicinal drugs and Uighur medicinal materials have rather high medical values and potential uses. The relationships between these beneficial elements and their medical mechanism were discussed. It had provided some scientific evidences for their further studies and applications of these two endemic medicinal Laudakia species.

Key words: Laudakia stoliczkana, Laudakia tarimensis, trace element, major element, atomic absorption spectrometry