College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, People's Republic of China.
Biol Trace Elem Res. 2010 Jun;135(1-3):304-13. doi: 10.1007/s12011-010-8627-z. Epub 2010 Feb 20.
Element fingerprints were deciphered for Fritillaria thunbergii from Chinese ten major fritillaria-producing regions for the purpose of examining differences in element composition with region of origin and identifying elements' importance to F. thunbergii. Analysis by inductively coupled plasma optical emission spectrometry allowed simultaneous determination of 18 elements in F. thunbergii (Al, B, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Na, Mn, Mo, S, Ni, P, Pb, and Zn), and patterns in element concentrations were deciphered by principle component analysis (PCA) and hierarchical cluster analysis (HCA). The element fingerprint was established which well reflected the element characteristics of F. thunbergii. Meanwhile, the ten regions were discriminated with 100% accuracy using HCA and PCA based on 18 of these elements. The element Mg, Ca, K, B, P, Mo, Na, Cd, Ni, and Al were viewed as the characteristic element of F. thunbergii, and the fingerprint of these elements could be used to distinguish the authenticity of F. thunbergii Miq.
为了研究不同产地的元素组成差异，并鉴定对浙贝母有重要作用的元素，我们对中国十大浙贝母产区的浙贝母进行了元素指纹分析。电感耦合等离子体发射光谱法（ICP-OES）分析可同时测定浙贝母中的 18 种元素（Al、B、Ca、Cd、Co、Cr、Cu、Fe、K、Mg、Na、Mn、Mo、S、Ni、P、Pb 和 Zn），主成分分析（PCA）和层次聚类分析（HCA）可解析元素浓度模式。该元素指纹很好地反映了浙贝母的元素特征。同时，基于这 18 种元素，HCA 和 PCA 可准确区分 10 个产区，准确率达到 100%。元素 Mg、Ca、K、B、P、Mo、Na、Cd、Ni 和 Al 被视为浙贝母的特征元素，这些元素的指纹图谱可用于鉴别浙贝母的真伪。
