Trace Element Analysis in Some Plants Species by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES)

Abstract

In this study, the whole parts of eight edible and medicinal species (Alcea rosea, Carduus pycnocephalus subsp. albidus, Euphorbia gaillardotii, Euphorbia macroclada, Hypericum triquetrifolium, Kickxia lanigera, Malvella sherardiana and Mentha longifolia subsp. noeana were determined for their trace element (Al, As, B, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Se) contents using ICP-OES. Before the whole plant parts were analyzed by ICP-OES, the porcelain crucibles were ashed and dissolved by adding concentrated nitric acid and hydrogen peroxide. The accuracy of the method was assessed by NCS ZC73014 Tea Leaves. The trace element contents obtained from each samples were compared. Calibration curves had good linearity in the concentration ranges 0.05-1.5 mg L-1 for whole elements worked. Since correlation coefficient (R) values were found above 0.9997, the linear range was considered acceptable. When the studied species are compared in terms of their metal contents; Cd (0.41±0.02 mg kg-1) and Cu (13.9±0.9 mg kg-1) metals in Carduus pycnocephalus subsp. albidus, B (22.4±1.6 mg kg-1) metal in Euphorbia macroclada, Se (0.26±0.01 mg kg-1) metal in Hypericum triquetrifolium Al (1424±109 mg kg-1), Cr (4.8±0.2 mg kg-1), Fe (980±67 mg kg-1) Mn (44.6±2.4 mg kg-1) Ni (7.5±0.3 mg kg-1) and Pb (1.15±0.1 mg kg-1) metals in Malvella sherardiana, As (0.62±0.02 mg kg-1) metals in Mentha longifolia subsp. noeana were determined higher. While the toxic element (As and Pb) content of the studied species is low compared to WHO, Cd and Cr contents in some species are found to be high to WHO.

Essential and Heavy Metals Content in Wild and Cultivated Mentha Species from Bosnia and Herzegovina

“…24 The detected high concentrations of Fe and Zn in the samples of cultivated species of Mentha confirmed the results of previous published papers that the deficiency of Zn leads to a deficiency of Fe in plants. 24,25 Twelve elements (Na, K, Ca, Mg, Cr, Cu, Mn, Fe, Ni, Cd, Pb, and Zn) were compared in all Mentha samples by correlation analysis using Microsoft Excel. The element correlations (Pearson, r) in the studied wild and cultivated Mentha samples from various sampling sites are reported in Tables 3 and 4.…”

“…Relatively low content of Cu in wild samples compared to the content of Zn is due to the fact that higher Cu concentrations mean lower Zn content, because higher concentrations of Cu in the soil relative to Zn can reduce the availability of Zn to a plant, due to competition for the same sites for absorption into the plant root. [23][24][25] In cultivated herb samples (Table 2), no Cd was detected in all three samples, while the highest concentration was detected for Fe and the lowest concentrations for Pb. 24 The detected high concentrations of Fe and Zn in the samples of cultivated species of Mentha confirmed the results of previous published papers that the deficiency of Zn leads to a deficiency of Fe in plants.…”

“…[23][24][25] In cultivated herb samples (Table 2), no Cd was detected in all three samples, while the highest concentration was detected for Fe and the lowest concentrations for Pb. 24 The detected high concentrations of Fe and Zn in the samples of cultivated species of Mentha confirmed the results of previous published papers that the deficiency of Zn leads to a deficiency of Fe in plants. 24,25 Twelve elements (Na, K, Ca, Mg, Cr, Cu, Mn, Fe, Ni, Cd, Pb, and Zn) were compared in all Mentha samples by correlation analysis using Microsoft Excel.…”

“…7,12 As presented in Tables 3 and 4, full, strong, and moderate correlations were found between the measured elements. 6,7,8,24 In general, full and moderate correlations were found between macro-elements and trace elements, which include alkaline earth cations as well as essential metals, i.e., Cr, Cu, Zn, Fe, and Mn.…”

Analysis of Trace Elements, Anticholinesterase Activity and ADME/Tox Profiling of some Achillea Species

“…The Aluminium and chromium contents were detected in the range of 190.16-638.40 ng/mg and 0.91-2.71 ng/mg, respectively. In Yener's study, the Al and Cr contents were found 1424 and 4.8 mg/kg in Malvella sherardiana (20). In another study, heavy metal analysis of 20 medicinal plants was performed, and the highest chromium value was found to be 33.75 µg/g (21).…”