Spectrometric Determination of Lanthanides Series

Ganjali, Mohammad Reza; Gupta, Vinod K.; Faridbod, Farnoush; Norouzi, Parviz

doi:10.1016/b978-0-12-804704-0.00006-2

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“…Soluble fractions of these elements from soil are absorbed by plants. The abundance of cerium, as average concentration in the soil, is 60 mg/kg and of lanthanum 30 mg/kg [95]. Lavender blossoms concentrate the largest quantities of rare earth elements.…”

Section: Discussionmentioning

confidence: 99%

Elemental Characterization of Romanian Crop Medicinal Plants by Neutron Activation Analysis

Haidu

Párkányi

Moldovan³

et al. 2017

Journal of Analytical Methods in Chemistry

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The metallic elements concentrations of medicinal plants (coriander, dill, Echinacea, lavender, chamomile, mint, and plantain, used for phytopharmaceutical products), cultivated in unpolluted region, were analyzed by neutron activation analysis. The essential nutrients, macro-, micro-, and trace elements (K, Ca, Mg, Na, Fe, Mn, Rb, Sr, and Zn), potentially toxic elements (Al, As, Ba, Co, Sb, Cr, and V), and rare earth elements were monitored and were compared with those presented in the literature. An estimation of their contributions to intake and toxicity for a person was made, which revealed that (a) teas prepared from the examined plants represent useful contribution to the food provided intake of three essential macronutrients (K, Ca, and Mg); (b) the Cu, Mn, Rb, Sr, Zn, and rare earths levels are normal or low; (c) the quantities of As, Ba, Co, Sb, Cr, and V do not represent toxicological concerns; (d) the examination of the estimated Al and Fe quantities recovered in infusions in the conditions of usual daily tea consumption is below the Tolerable Daily Intake values. The strategy of cultivation of medicinal plants in unpolluted areas is efficient and beneficial. However, individual plants ability to concentrate preferentially certain elements suggests controlling the contamination level of raw materials.

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Section: Discussionmentioning

confidence: 99%