Authors:E. Blicharska, Ł. Komsta, R. Kocjan, A. Gumieniczek, A. Kloc, and J. Kaźmierczak
The paper discusses a possibility to grow seeds on solutions of microelements and application of sprouts enriched in such a way as an alternative to commercial dietary supplements. It contains a short review of the approaches reported till now and a systematic experimental study, carried on the most frequently used seeds (Lens culinaris, Helianthus annuus, Vigna radiata, Glycine max, and Lepidium sativum).Seven metals (Fe, Cu, Zn, Ni, Co, Cd, and Mn) were studied. Seeds were grown on cellulose in 20°C temperature using deionized water enriched with metals in concentrations: 100, 50, 25, 12.5, 6.25, and 3.125 mg/L in a period of 4 days. The reference samples were the seeds grown on pure deionized water. Sprouts were mineralized by microwave radiation, and the metal content was quantified by ion chromatography with on-line post-column derivatization and spectrophotometric detection.The conclusions can be treated as general recommendations, which seeds should be grown and what concentrations of metals in solutions should be applied to provide good enrichment and to avoid risk of microelement overdose.
Authors:Alexey Tymoshenko, Gennadii Tkach, Vitalii Sikora, Valentina Bumeister, Ihor Shpetnyi, Mykola Lyndin, Olena Maksymova, and Anna Maslenko
effect on all biological species  . Direct or indirect intake of different contaminants can cause a disease or become a reason for the development of related disorders [2, 3] .
Heavy metals are considered to be terribly dangerous for their
Authors:Anatolii Romaniuk, Vladyslav Sikora, Mykola Lyndin, Vladyslav Smiyanov, Volodymyr Sikora, Yulia Lyndina, Artem Piddubnyi, Nataliya Gyryavenko, and Anna Korobchanska
into biosphere is comprised of heavy metal salts (HMS). The prevalence and toxicity of these metals pose a significant problem to many countries [ 3, 4 ]. Unfortunately, because of the increase in day-to-day pollution by various emissions, ecological
Authors:Wiesława Ferenc, Beata Cristóvão, Jan Sarzyński, and Paweł Sadowski
properties, derivatives and complexes with alkali metals, such as Zn(II), Hg(I), Hg(II), Cd(II), and Zn(II) [ 2 – 10 ]. Having very important biological activity and specific structure, cinnamic acid has been still extensively and solidly studied.
The metal-organic framework (MOF) is a kind of new type self-assembly porous coordination polymer, which possesses many characteristics such as homologic hole, controllable size of cave, high specific surface area, and good chemical stability. In this study, a three-dimensional framework [Zn2(d-Cam)2(4,4′-bpy)]n with large homochiral channel and the orderly arrangement of left- and right-handed helices was used as chiral stationary phases (CSPs) in gas chromatography (GC). [Zn2(d-Cam)2 (4,4′-bpy)]n-coated open tubular column was prepared by a dynamic coating method for high-resolution GC. Some racemates, isomers, linear alkanes, and alcohols are used as the targets for separation. The column coating properties efficiency, polarity, and selectivity were studied. The experimental results show that the stationary phase has outstanding selectivity and also possesses good recognition ability toward these compounds.
Authors:S. Nabi Nabi, S. Ganai Ganai, and A. Khan Khan
Titan yellow has been adsorbed on a strongly basic anion-exchange resin. The effects of concentration, pH, time, and temperature on adsorption of the dye by the resin have been studied. The effects of surfactants on the distribution coefficients of metal ions were also studied. On the basis of distribution coefficients several binary separations of analytical importance (Zn(II) from Hg(II), Zn(II) from Pb(II), Cu(II) from Pb(II), Cd(II) from Pb(II), and Cu(II) from Hg(II) have been achieved on a column containing the Titan yellow-modified resin. Hg(II) and Pb(II) were selectively analysed in synthetic mixtures.