Abstract
Abstract Plants and aqueous extracts of Alternanthera maritima (aerial parts and roots), Alternanthera brasiliana and Alternanthera tenella colla (total plant) were selected for analysis of metals bioaccumulation. The synchrotron radiation total reflection X-ray fluorescence (SRTXRF) was used for excitation of the samples and a Si(Li) detector for the detection of the characteristic X-rays emitted by the sample elements. The elements P, S, K, Ca, Ti, Mn, Fe, Cu, Zn, Rb, and Sr were detected in all samples. Further-more Al, Si, Cl, Ni, Br, Rb, Cd, Sn, Sb, Hg, and Pb in Alternanthera maritima samples; Si, Co, Cd, Sn, Sb, and Ce in Alternanthera brasiliana and Al, Si, Co, Ni, Br, Cd, Sn, Sb, and Ce in Alternanthera tenella colla were found. The concentration obtained in the samples for K-shell lines varied from 1.63 µg g−1 for Ni to 3.34 × 105 µg g−1for K, and for L-shell the values ranged from 1.64 x 101 µg g−1 for Cd to 6.71 × 102 µg g−1 for Sn.
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