Tibetan Medicine In The Determination Of Trace Elements Analysis

Tibetan medicine is one of the important parts of Chinese national medicine. The paper based on the theory of trace elements nutritional ecology and Tibetan medicine, instructed by the principles of Chinese medical trace elements. The experiments in this paper adopt acid-digestion as disposal method on sample, and AAS as determining way, analyzed 7 trace elements: Cu, Mn, Fe, Zn, Ni, Se, Cr, 3 normal elements: K, Ca, Mg, 2 heavy metal: Pb, Cd on 22 Tibetan herbs and 10 Tibetan patent medicines. The main works including:1. The analysis and statistics on total contents in samples, the research finds out that except Fe, Zn in Tibetan herb, the elemental distributing obeys normal distributing. The contents of heavy metals on most samples are meeting the need of standard.2. The determination on contents of the water soaking. Analyzing the contents relations between total and water soaking, the first and second water soaking by calculating forming variables, And evaluating the correlation between elements distribution and medical functions. The result indicates that mostly elements distribution is related to medical function.3. Using n-caprylic alcohol extracting in acid or basic conditions to simulating the stomach and small intestine's absorption on elements. Itprovided academic basement for elemental actions on Tibetan medicines. The data shows that PH value notably influenced the absorption of elements in some samples.In conclusion, the paper's object and meaning is studying the elemental kinds, contents, absorptions in Tibetan medicine, find out the rules of correlation and distributions. And it combines the Tibetan medicine to environment, human being, analyses Tibetan medicine in a new and meaningful way and effectively promotes the exploitation of Tibetan medicine and the resource of western region.