The paper aims to explore the difference in the content of mineral elements in different varieties of Lycium barbarum and different production areas of Ningxia. Four varieties of Lycium barbarum, Ningqi 1, Ningqi 5, Ningqi 7 and Ningqi 9, were collected from Guyuan, Zhongwei, Zhongning and Yinchuan, Ningxia. Al, As, B, Ba, Cd, Co, Cr, Cu, Hg, La, Li, Mg, Mn, Mo, Ni, Rb, Sc, Se, Sr, Th, Ti, Fe, Zn, P, Ca and Pb in Lycium barbarum samples was determined by inductively coupled plasma mass spectrometry (ICP-MS). Results showed that there was no significant difference in the contents of mineral elements in different varieties of Lycium barbarum in Ningxia. However, the contents of mineral elements in Lycium barbarum samples from different producing areas in Ningxia have their own characteristics, and the contents of Al, As, Ba, Co, Cu, La, Mg, Mn, Mo, Ni, Rb, Sc, Sr, Ti, Th, Fe and Ca in Lycium barbarum in different planting areas in Ningxia have reached a very significant level, and there is a certain correlation and dependence among 26 kinds of mineral elements in Lycium barbarum. Principal component analysis of 26 mineral elements in Lycium barbarum can be screened Ni, Li, Al, As, Mo, P, Th, Zn, Pb, Hg, Ba were selected as the characteristic mineral element of Lycium barbarum. Mineral element analysis technique can be used as an effective means to trace the origin of Lycium barbarum.
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