Metal bioaccumulation by the freshwater algaScenedesmus quadricauda |
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Authors: | A Fargašová A Bumbálová E Havránek |
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Institution: | (1) Department of Environmental Sciences, Faculty of Chemical Technology, Slovak Technical University, Radlinského 9, 812 37 Bratislava, Slovak Republic;(2) Department of Analytical Chemistry, Faculty of Pharmacy, Comenius University, Odbojárov 10, 832 32 Bratislava, Slovak Republic |
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Abstract: | Bioaccumulation of six metals (Cu2+, Cu+, Mo6+, Mn2+, V5+, Ni2+) and their combinations by algaScenedesmus quadricauda was determined by using radio nuclide X-ray fluorescence (RXFA). The metals were added into the cultivation medium in concentrations corresponding with EC50 value for each metal. The obtained results indicate that Ni2+, Cu2+ and Cu+ were accumulated in high amounts (20%, 17.5% and 15.19%) the Mo6+ ion (<0.2%) was accumulated in the lowest amount. For metal-metal interactions in accumulation of metal ions by algaS. quadricauda three types of answers were determined: inhibition (Mo Cu2+, Ni, Mn, V; V Ni, Mn; Mn Ni, Cu2+, Cu+; Cu+ Ni; Cu2+ Ni; Ni Mn, V), enhancement (V Cu+; Cu2+ Mn;Cu+ V, Mn; Mn V; Ni Cu2+, Cu+) and neutral effect (V Mo; Cu2+ Mo; Cu+ Mo; Mu Mo; Ni Mo). |
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