**3. Results**

The profile of chemical elements in plants depends on the geochemical characteristics of the soil [13] and on the ability of plants to selectively accumulate minerals essential for their growth. For given plants, the content of mineral and trace elements is characteristic and will be affected by different factors, such as the physical and chemical properties of the soil, application of natural and artificial fertilizers, and climatic conditions of the region. The results obtained for the total content of elements in *Sempervivum tectorum* L. are presented in Tables 2–4.

**Table 2.** Essential (basic) element contents in dry samples.



**Table 3.** The content (mg/kg) of non-essential elements in dry samples.

 Limit of detection.

**Table 4.** The total content (mg/kg) of toxic elements (Cd, Pb, As, Hg, and Ni) in dry samples.


The bioavailable content of Ca, Mg, Zn, Mn, and Fe in fresh leaves of *Sempervivum tectorum* L. is depicted in Table 5.

The concentrations of elements in juice obtained from fresh leaves are presented in Table 6.


**Table 5.** Bioavailable content of Ca, Mg, Zn, Mn, and Fe in fresh leaves of *Sempervivum tectorum* L. as a mean values (RSD for all samples varied between 3–8%).

**Table 6.** Element concentrations (mg/L) in fresh juice from *Sempervivum tectorum* L.

