Trace element analysis in some Salvia species by inductively coupled plasma-mass spectrometry (ICP-MS) and chemometric approach

Abstract

In this study, the stems, leaves, flowers, roots and mixed all parts of five Salvia species were analyzed for their trace element (Li, Be, V, Cr, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Ag, Cd, Cs, Ba, Hg, Tl, Pb, and U) contents using ICP-MS. The seeds, roots leaves, flowers, and mixed parts of each species were digested by concentrated nitric acid and hydrogen peroxide in a microwave by before ICP-MS the analysis. The accuracy and precision of the method were evaluated by CRM 1573a Tomato Leaves. Trace element contents in different parts of each sample were compared. Concentration of toxic elements (As, Cd, Hg and Pb) were lower than those declared by WHO, except Cr content. Cr content in the root sections of Salvia suffruticosa (SFR), S. hydrangea (SHR), S. trichoclada (STR), S. xanthocheila (SXR), leaf samples of S. kronenburgii (SKL) and S. xanthocheila (SXL). also the Cr content in the leaf sections of Salvia kronenburgii (SKL) Salvia xanthocheila (SXL) was found high. When consider the daily metal (Zn, Cu, Sr, Ba and Ni ) needs It was concluded that these Salvia species can be nutritive sources. In addition, Salvia samples were classified by utilizing chemometric techniques such as Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA). While the first two main components explained 55.30% of the total variance, the first six main components explained 89.60% of total variance

Keywords

• Salvia
• trace element
• ICP-MS
• PCA

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