“…The measured results were compared with a multielemental standard for GF AAS (CertiPUR ® , Merck, Darmstadt, Germany). The samples were prepared according to the methodology of Kunová et al [44]. The sample extracts were analyzed for K, Na, Ca, Mg, P, Fe, Mn, Zn, Cu, Co, and Cr using a fast sequential atomic absorption spectrophotometer (Varian model AA 240 FS) at specific wavelengths: K-766.5 nm, Na-589.6 nm, Ca-393.4 nm, Mg-279.6 nm, P-177.5 nm, Fe-241.8 nm, Mn-279.5 nm, Zn-213.9 nm, Cu-324.8 nm, Co-240.7 nm, Cr-357.9 nm [44].…”