Paper
XU Qinke, XU Wenjun , SUN Ying, WEI Xuebing, XU Jijun, MA Xiao, GUO Zhaohui,
A microwave digestion-inductively coupled plasma mass spectrometry(ICP-MS) method was
established to determine the contents of 37 inorganic elements(Ag, As, Ba, Be, Bi, Cd, Ce, Co, Cr, Cs, Cu, Dy, Er, Eu,
Gd, Ho, Hg, In, La, Li, Lu, Mn, Nd, Ni, Pb, Pr, Rb, Sc, Sm, Sr, Tb, Th, Tl, Tm, V, Y, and Yb) in Cynomorium songaricum
Rupr samples from different origins. Hierarchical clustering analysis, principal component analysis, and orthogonal partial
least squares discriminant analysis were used to perform cluster analysis, correlation analysis, and difference analysis on
the samples, aiming to explore the relationship between Cynomorium songaricum Rupr from different origins and their
inorganic elements. The results showed differences in the contents of inorganic elements among samples from different
origins. Combined with hierarchical clustering analysis, principal component analysis, and orthogonal partial least squares
discriminant analysis, the samples were classified into two categories, and nine differential inorganic elements(In, Th, Y, Cd,
Gd, Dy, Yb, Pr, and Sm) were identified. The established method can effectively distinguish the distribution characteristics
of Cynomorium songaricum Rupr samples from different production areas, providing data support for optimizing the
cultivation of Cynomorium songaricum Rupr and ensuring the quality and safety of medicinal materials.
