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    Determination of trace elements in illicit spice samples by using ICP-MS
    (Elsevier Science Bv, 2015) Bora, Taner; Aksoy, Cagdas; Tunay, Zeki; Aydin, Firat
    The narcotic and toxic effects of synthetic cannabinoids have been intensely investigated by scientists in recent years. Most of these studies have been about the effects of synthetic cannabinoid compounds on the human body. However, in this study, we aimed to determine trace element concentrations in seized spice products and observe whether they were above the limit values. The investigated spice product plants contained brooklime, which was the most popular raw material in illicit spice drugs in Turkey. The synthetic cannabinoid contents of the samples were identified by GC-MS. All samples were analyzed by ICP-MS after microwave digestion. The concentration values of Ba, Be, Co, Cr, Cu, Ni, Li, Pb, U, and Zn in three brooklime samples and twenty-nine spice samples containing brooklime were reported. Certified standard reference material CRM SRM 1573a tomato leaves were used to assess the accuracy of the method. After checking the accuracy, excess amounts of the digested CRM were also used to check the precision of the method. Trace element contents in the analyzed samples were likely to be of negligible concern. Barium was the only distinctive element determined. To our knowledge, this is the first study in this field. (C) 2015 Elsevier B.V. All rights reserved.
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    Öğe
    Trace element analysis in some salvia species by inductively coupled plasma-mass spectrometry (Icp-ms) and chemometric approach
    (Marmara University, 2020) Tunay, Zeki; Yener, İsmail; Oral, Elif Varhan; Demirkoz, Aslı Barla; Ölmez, Özge Tokul; Fırat, Mehmet; Öztürk, Mehmet; Aydın, Işıl; Aydın, Fırat; Ertaş, Abdülselam
    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. © 2020 Marmara University Press.
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    Öğe
    Trace Elemental Analysis of Allium Species by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) with Multivariate Chemometrics
    (Taylor & Francis Inc, 2019) Oral, Elif Varhan; Tokul-Olmez, Ozge; Yener, Ismail; Firat, Mehmet; Tunay, Zeki; Terzioglu, Pinar; Aydin, Firat
    Aerial parts and roots of the 12 Allium species collected from five localities of Turkey were studied for trace elements (Ag, As, Cd, Co, Cr, Cu, Ni, Pb, Se, Tl, V, and Zn) using inductively coupled plasma mass spectrometry (ICP-MS). A tomato leaves certified reference material was used to characterize the accuracy and precision of the analysis. Each Allium species contained Se (315-2740 mu g/kg), Tl (2.75-71 mu g/kg), V (77-6790 mu g/kg), and Zn (3.73-26.6 mg/kg) which can meet the necessary daily intake of these minerals. In addition, chemometric analyses were performed using correlation analysis, principal component analysis, and hierarchical cluster analysis to determine the association of 12 trace elements in the Allium species. Using chemometrics, the distribution of elements between aerial parts and roots, and geographic collection localities of Allium species were also examined. This study is important the consumers because of the wide consumption of Allium species. This report is the first detailed characterization of the metal content of Allium species.