Study on Identification Method of Fructus Lycii Origin by Mineral Elements

In order to rapid discriminate the source of Fructus Lycii origin, Fructus Lycii from five different areas were collected, the content of K, Ca, Na, Mg, Fe, Zn ,Cu and Mn were analyzed with flame atomic absorption spectrometry,and the data was analyzed with Stepwise discriminant analysis method,and the discriminant function was established. The results showed that Fructus Lycii from five different areas was well clustering. The discriminant model was re-discriminated by using the method of mutual test; its discrimination accuracy was 94.4% for the original samples and the unknown samples. The recognition rates for Ningxia, Hebei, Qinghai cultivation regions were all 100%. In conclusion, mineral element combined with chemometrics method was a fast and accurate method to identify the origin source of Fructus Lycii.