The Journal of Slovak University of Technology in Bratislava

Acta Chimica Slovaca

Acta Chimica Slovaca ONL

<abstract><title style='display:none'>Abstract</title> Corrosion resistance of tungsten and nickel in molten eutectic LiF-NaF was investigated by measurement of polarization resistance and chronopotentiometry. Results obtained by both methods were compared by digital simulation of diffusion of corrosion products. All measurements were carried out at the temperature of 680 °C in two types of atmospheres; in inert argon and oxidation air atmosphere. It was found that presence of air (oxygen) significantly decreases corrosion resistance of used metals. From tested materials, tungsten was more corrosion resistant material than nickel in both types of atmospheres. Obtained results were also compared with those measured in the molten eutectic LiF-NaF-KF earlier.</abstract>

Abstract

Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37, Bratislava, Slovakia

Keywords

<article-title>Corrosion resistance of tungsten and nickel in molten eutectic mixture LiF-NaF</article-title>

Corrosion resistance of tungsten and nickel in molten eutectic mixture LiF-NaF

{"article-title":"Corrosion resistance of tungsten and nickel in molten eutectic mixture LiF-NaF"}

<abstract><title style='display:none'>Abstract</title> Solubility data of the conversion system 2NH4+ - 2Na+ - S2O82- - SO42- - H2O at 20 °C and 30 °C for the partial pseudoternary systems Na2S2O8-(NH4)2SO4-H2O, (NH4)2S2O8-Na2SO4-H2O, Na2S2O8-NaNH4SO4-H2O and (NH4)2S2O8-NaNH4SO4-H2O have been correlated using the relative activity coefficient expansion of the crystallizing component. The obtained correlation equations have been used for the calculation of mean activity coefficients of ammonium and sodium peroxodisulfates in their saturated solutions of the mentioned pseudoternary systems.</abstract>

Heřmanova 35, 170 00 Prague 7, Czech Republic

<article-title>Mean Activity Coefficients of Peroxodisulfates in Saturated Solutions of the Conversion System 2NH4+ — 2Na+ — S2O82– — SO42– — H2O at 20 °C and 30 °C</article-title>

Mean Activity Coefficients of Peroxodisulfates in Saturated Solutions of the Conversion System 2NH — 2Na — SO — SO — HO at 20 °C and 30 °C

<abstract><title style='display:none'>Abstract</title> This paper is focused on the influence of granulated activated carbon (GAC) and zeolite as catalysts as well as influences of temperature and pH on the ozonation process. From obtained results it can be concluded that the addition of granulated activated carbon and zeolite to model wastewater has a positive effect on the efficiency and degradation rate of methylene blue oxidation with ozone. The highest oxidation efficiency was observed in the alkaline pH range for which radical reaction mechanism of ozone is characteristic. From the results obtained during the study of the effect of temperature on the ozonation process it follows that both the efficiency and the rate of oxidation of methylene blue grow with increasing temperature.</abstract>

Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 81237 Bratislava, Slovakia

<article-title>Influence of reaction conditions on the ozonation process</article-title>

Influence of reaction conditions on the ozonation process

{"article-title":"Influence of reaction conditions on the ozonation process"}

<abstract><title style='display:none'>Abstract</title> The title compound, C17H32NO4I・H2O, is chiral molecule with seven stereogenic centres. The absolute configuration was assigned from the synthesis and confirmed by the structure determination. The central six-membered ring of the indolizine moiety and 1,4-dioxane ring adopt a chair conformation, with two atoms displaced by -0.530(3), 0.712(3) and -0.631(2), 0.602(2) Å, respectively, from the plane of the other four atoms. The conformation of the pyrrolidine ring is close to that of a envelope, with the flap atom displaced by -0.600(3) A from the plane through the remaining four atoms. The electron structure was calculated by the semiempirical quantum chemistry method PM3. The crystal structure of compound is stabilized by O-H・・・I and O-H・・・O hydrogen bonds.</abstract>

Institute of Analytical Chemistry, Faculty of Chemical and Food Technology, Slovak Technical University, Radlinského 9, SK-812 37 Bratislava, Slovak Republic

Institute of Mathematics and Physics, Faculty of Mechanical Engineering, Slovak University of Technologyy, Námestie slobody 17, SK-812 31 Bratislava, Slovak Republic

Institute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology, Slovak Technical University, Radlinského 9, SK-812 37 Bratislava, Slovak Republic

<article-title>Crystal, molecular and electron structure of (2R,3R,4aS,5S,7R,10aS,10bS)-5-ethyl- 2,3-dimethoxy-2,3,7-trimethyl-decahydro-2H- [1,4]dioxino[2,3-g]indolizin-7-ium iodide hydrate</article-title>

Crystal, molecular and electron structure of (2R,3R,4aS,5S,7R,10aS,10bS)-5-ethyl- 2,3-dimethoxy-2,3,7-trimethyl-decahydro-2H- [1,4]dioxino[2,3-g]indolizin-7-ium iodide hydrate

<abstract><title style='display:none'>Abstract</title> Optimal conditions of spray drying of a fructooligosaccharide-rich mixture prepared by enzymatic conversion of sucrose were investigated. It was found that efficient drying of the mixture containing about 40 % of monosaccharides and sucrose required addition of a compound with a high glass transition temperature. The addition of maltodextrin helped to achieve satisfactory solids yield and moisture. Optimized process parameters were the feed flow rate and solids concentration, drying air flow rate and inlet temperature.</abstract>

Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

<article-title>Spray drying of the mixtures of mono-, di-, and oligosaccharides</article-title>

Spray drying of the mixtures of mono-, di-, and oligosaccharides

{"article-title":"Spray drying of the mixtures of mono-, di-, and oligosaccharides"}

<abstract><title style='display:none'>Abstract</title> In this work, the influence of the inter-ring dihedral angles and their deformation on the energetics of diphenylamine molecule and its radical is investigated by the B3LYP/6-311++G** approach. Our approximated bond dissociation enthalpy of diphenylamine is 370.0 kJ mol-1 and it is in good agreement with the recently published experimental data. The potential functions of both the molecule and the radical with respect to the mutual aromatic ring orientations are presented. The potential function for the molecule is of a double-barrier type, whereas the radical possesses a single-barrier function. The calculated total electronic energies are used to approximate the change of the bond dissociation enthalpy with the twisting of the dihedral angle. The dependence of the bond dissociation enthalpy on the dihedral angle is represented by a single-barrier type function. The dependence of the nitrogen atom spin density on the studied dihedral angle is also discussed.</abstract>

Adam Vagánek Institute of Physical Chemistry and Chemical Physics, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovakia

Institute of Physical Chemistry and Chemical Physics, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovakia

<article-title>Torsional deformation effect on the N—H bond dissociation energy in diphenylamine</article-title>

Torsional deformation effect on the N—H bond dissociation energy in diphenylamine

<abstract><title style='display:none'>Abstract</title> Strong correlation of stabilization energies of π-stacked pyridine and fluorinated pyridine dimers with various relative orientations is presented. Four possible orientations of the monomers were considered. A SAPT decomposition of the interaction energies is presented and briefly discussed. The dominant electrostatic contribution to the stabilization energy is found in some dimers and its possible origin is addressed in the discussion. An outline of possible future studies is introduced.</abstract>

Institute of Physical Chemistry and Chemical Physics, Slovak Technical University, SK-81237 Bratislava, Slovakia

<article-title>Ab initio study of the structure and energetic of pyridine dimers</article-title>

Ab initio study of the structure and energetic of pyridine dimers

{"article-title":"Ab initio study of the structure and energetic of pyridine dimers"}

<abstract><title style='display:none'>Abstract</title> This work deals with the design and the application of a robust control to a chemical reactor. The reactor is exothermic one. There are two parameters with only approximately known values in the reactor. These parameters are the reaction enthalpies. Because of the presence of uncertainty, the robust output feedback is designed. Two robust controllers are designed, the first one is based on the small gain theorem and the second one uses the H2/H∞ control techniques. The presented experimental results confirm applicability of mentioned approaches to safe control of nonlinear processes.</abstract>

Institute of Information Engineering, Automation and Mathematics, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

<article-title>Robust control of a chemical reactor with uncertainties</article-title>

Robust control of a chemical reactor with uncertainties

{"article-title":"Robust control of a chemical reactor with uncertainties"}

<abstract><title style='display:none'>Abstract</title> During last decades interest in ferrates(VI) has increased significantly. On one hand they serve as strong, non-toxic oxidants without harmful by-products and, on the other hand, as an efficient coagulant in both drinking and waste water treatment technology. In this work we focused on the electrochemical preparation of ferrate (VI) salts in eutectic low temperature molten sodium hydroxide - water mixture using pure iron anodes. Some information on the stability and kinetics of decomposition of sodium ferrate(VI) prepared by molten-system electrolysis is discussed. An assumption that electrochemically prepared ferrate(VI) in molten hydroxide media are stable enough to be used especially in the field of waste water treatment was confirmed by our observation.</abstract>

Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinsk��ho 9, 812 37 Bratislava, Slovakia

<article-title>Electrochemical study of the stability of ferrates(VI) in low temperature molten hydroxide</article-title>

Electrochemical study of the stability of ferrates(VI) in low temperature molten hydroxide

<abstract><title style='display:none'>Abstract</title> A mixture of galacto-oligosaccharides and non-prebiotic sugars was separated using a simulated moving bed unit equipped with eight packed-bed columns of a cation exchanger. In order to determine operating conditions using triangle theory, equilibrium adsorption isotherms of galactose, glucose, lactose, tri- and tetragalacto-oligosaccharide were measured. It was found that each column of the SMB unit had a maximum separation efficiency of more than 3000 theoretical plates. The achieved purity of galacto-oligosaccharides in the raffinate stream was 99.9 %, similarly 99.9 % of extract was formed by non-prebiotic sugars lactose, glucose and galactose. The productivities in the raffinate and extract, were 0.6 g/(L h) and 2.4 g/(L h), respectively.</abstract>

<article-title>Simulated moving bed chromatography separation of galacto-oligosaccharides</article-title>

Simulated moving bed chromatography separation of galacto-oligosaccharides

{"article-title":"Simulated moving bed chromatography separation of galacto-oligosaccharides"}

<abstract><title style='display:none'>Abstract</title> The students frequenting the program Chemical Engineering at the Department of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology of the Slovak University of Technology in Bratislava are taught to be able to combine and develop their knowledge acquired in the area of chemical, energetic, environmental, and safety engineering. Prior to completing their study, they are obliged to develop a report regarding engineering, economic, and safety analysis of important chemical technology. This paper presents the most valuable outputs of the student’s Technology project aimed on simulation and optimization of the fuel additives production technology. 2-Ethoxy-2-methylpropane (ethyl-t-butyl ether, ETBE) production based on liquid-phase etherification of 2-methylpropene with ethanol in the presence of heterogeneous catalyst was studied. Different patented technologies were investigated in terms of their profitability and safeness. The first technology was an isothermal reactor with the product separation via distillation (Kochar &amp; Marcell, 1981). The next ETBE production design assumed was a modification of the previous one; the product separation was carried out using liquid-phase extraction (Pucci et al., 1992). The last design considered in this study was a reactive distillation column with a pre-reactor (Bakshi et al., 1992). In all three technologies, etherification reaction was carried out using Amberlyst ion-exchange resin in its H+ form as the catalyst. Selected ETBE production designs were simulated using Aspen+ program. Their profitability was compared on basis of the investment and operation costs assessment taking into account both the produced ETBE yield and purity. Further, basic safety analysis of all chosen technologies was performed in order to identify possible hazards. Finally, individual and social risk connected with the plant operation was computed. Taking into account these economic and safety criteria, the best alternative for ETBE production was the reactive distillation.</abstract>

Department of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinsk��ho 9, 812 37 Bratislava, Slovakia

<article-title>Fuel additives production: ethyl-t-butyl ether, a case study</article-title>

Fuel additives production: ethyl-t-butyl ether, a case study

{"article-title":"Fuel additives production: ethyl-t-butyl ether, a case study"}

<abstract><title style='display:none'>Abstract</title> Nowadays, there are well known PCR-based techniques to detect polymorphism in plants. Marker technologies which are applied in breeding and varietal characterization can be exchanged across laboratories with standardization to yield reproducible results. This article describes applying of simple sequence repeats (SSR) markers in European laboratories, in which the reproducibility of these popular markers are examined. One of the European Union interests is characterization of grape varieties and preparation of International Vitis catalogue for comparison global varieties as Chardonnay, Sauvignon, Pinot noir with the domestic for each other country. Grape genome contains of many SSR, which are highly polymorphic. This review provides the latest information in SSR research including novels in research, comparison, development and application of microsatellites.</abstract>

Department of Biotechnology, Faculty of Chemical and Food Technology of Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia

Department of Molecular Biology, The Plant Production Research Centre — Piešťany, Institute of Viticulture and Enology, Bratislavská cesta 122, 92168 Piešťany, Slovakia

Department of Biotechnology, Faculty of Natural Science of University Ss. Cyril and Metodius in Trnava, J. Herdu 2, 917 01 Trnava, Slovakia

<article-title>Characterization of vine varieties by SSR markers</article-title>

Characterization of vine varieties by SSR markers

{"article-title":"Characterization of vine varieties by SSR markers"}

<abstract><title style='display:none'>Abstract</title> The paper presents an approach for robust PI controller design for a system affected by parametric uncertainty. The method is based on plotting the stability boundary locus in the plane of controller parameters that is called (kp, ki)-plane. Designed robust PI controller is implemented for control of two counter-current tubular heat exchangers in series with uncertain parameters, in which kerosene as a product of distillation in a refinery has to be cooled by water. The controlled variable is the temperature of the outlet stream of the kerosene from the second heat exchanger and the control input is the volumetric flow rate of the inlet stream of the cold water in the second heat exchanger. Simulation results of robust PI control of heat exchangers are also presented.</abstract>

Institute of Information Engineering, Automation and Mathematics, Faculty of Chemical and Food Technology, STU in Bratislava, Radlinského 9, 812 37 Bratislava, Slovakia

<article-title>Design of Robust PI Controller for Counter-Current Tubular Heat Exchangers</article-title>

Design of Robust PI Controller for Counter-Current Tubular Heat Exchangers

{"article-title":"Design of Robust PI Controller for Counter-Current Tubular Heat Exchangers"}

<abstract><title style='display:none'>Abstract</title> The review is an attempt at critical evaluation of known synthetic procedures used for laboratory and industrial preparation of a synthetic antihypertensive - Dexmedetomidine as to their complexity, published yield and atom economy</abstract>

Institute of Organic Chemistry, Catalysis and Petrochemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovak Republic

<article-title>Synthetic approaches to dexmedetomidine (review)</article-title>

Synthetic approaches to dexmedetomidine (review)

{"article-title":"Synthetic approaches to dexmedetomidine (review)"}

<abstract><title style='display:none'>Abstract</title> In this study, mixed phase ZnO-TiO2 nanocomposite consisting of hexagonal ZnO and anatase/rutile TiO2 has been synthesized via sol-gel process.The physical and photochemical properties of samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), photoluminscience spectra (PL) and and photocurrent action spectra techniques. In the case of minerlization of rhodamine B (RhB) and malachite green (MG) dyes, the coupled ZnO-TiO2 nanocomposite with the suitable band structure and the lowest photoluminescence intensity showed the best photodecolorization activity. Synergistic effects between the two oxides for photocatalytic decomposition of RhB and MG are proposed to elucidate the decolorization mechanism. The lifetime of electrons and holes was prolonged in the ZnO-anatase/rutile multiple-component system, which can enhance the light harvest and the ability of generating photo-induced electron-hole pairs of active sites, and the favorable electron-transfer properties in the coupled ZnO-TiO2 nanocomposite. Therefore, the as-prepared ZnO-TiO2 nanocomposite showed an excellent efficiency towards the removal of aqueous organic dyes and it is of certain significance for environmental photocatalysis.</abstract>

College of Science, Huazhong Agricultural University, Wuhan 430070, PR China

<article-title>Effectiveness of photodecomposition of rhodamine B and malachite green upon coupled tricomponent TiO2(Anatase-Rutile)/ZnO nanocomposite</article-title>

Effectiveness of photodecomposition of rhodamine B and malachite green upon coupled tricomponent TiO(Anatase-Rutile)/ZnO nanocomposite

<abstract><title style='display:none'>Abstract</title> In current time we can see worldwide rise in number of people suffering from civilization diseases, such as health threatening cardiovascular diseases, obesity, diabetes mellitus, cancer and many others. Cereal products which provide income of important nutritional substance for human health belong among groceries with proven medical effect. Among significant components of cereals with proven effect in prevention of civilization diseases belongs roughage, β-glucans, phytochemicals. Important role also play vitamins and minerals, which are present in cereals in minor values. Article summarizes presence of medically important substances in cereals.</abstract>

Department of Nutrition and Food Assessment, Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic

<article-title>Health-promoting substances contained in cereals (review)</article-title>

Health-promoting substances contained in cereals (review)

{"article-title":"Health-promoting substances contained in cereals (review)"}

<abstract><title style='display:none'>Abstract</title> Given the importance of the cookies of type Maria worldwide, and considering the absence of any scientific study setting out their main features, it becomes important to identify the differentiating characteristics of several commercialized brands, in particular related to the chemical, physical and sensory characteristics. In this way, the aim of this work was to study and compare eight different brands of cookies of type Maria. The elemental chemical analysis (moisture, ash, protein, fat, fibre and carbohydrates contents), determination of physical parameters (volume, density, texture and colour) and sensory evaluation of studied cookies were performed. Multivariate statistical methods (Pearson correlation, principal component analysis and cluster analysis) were applied to estimating relationships in analysed data. The results for the elemental analysis showed that the samples were very similar in terms of some components, like for example ashes, while quite different in terms of other components, such as moisture and fat contents. With respect to texture and colour the samples showed, in general, some important differences. In terms of sensory evaluation, the sample C was the one that in most sensory tests gathered the preference of the panellists. The cluster analysis showed that the sample A was much different from the other samples. The results of principal component analysis showed that the main component explains 32.6 % of the total variance, and is strongly related to variables associated to colour.</abstract>

Departamento de Indústrias Alimentares, ESAV, Quinta da Alagoa, Estrada de Nelas, Ranhados, 3500-606 Viseu, Portugal

CI&DETS, Instituto Politécnico de Viseu, Av. Cor. José Maria Vale de Andrade, Campus Politécnico, 3504-510 Viseu, Portugal

<article-title>Analysis of the physical-chemical and sensorial properties of Maria type cookies</article-title>

Analysis of the physical-chemical and sensorial properties of Maria type cookies

{"article-title":"Analysis of the physical-chemical and sensorial properties of Maria type cookies"}

<abstract><title style='display:none'>Abstract</title> Surface water pollution by organic contaminants was investigated using passive sampling by semipermeable membrane devices (SPMDs), based on free transfer of analyte (diffusion) from water into receiving phase of sampler. The work was aimed at isolation method of contaminants from passive samplers extracts and instrumental analysis of polycyclic aromatic hydrocarbons. Gel permeation chromatography after silica gel sample cleanup was used as a method for cleaning the extracts of passive samplers from interfering Triolein, the receiving phase in the samplers. The efficiency of isolation and cleaning was determined for polycyclic aromatic hydrocarbons as a target group of contaminants. Polycyclic aromatic hydrocarbons were determined in the obtained fraction by gas chromatography coupled with mass spectrometry.</abstract>

Slovak University of Technology, Faculty of Chemical and Food Technology, Radlinského 9, 812 37 Bratislava, Slovakia

Water Research Institute, Nabr. Arm. Gen. L. Svobodu 5, 812 49 Bratislava, Slovakia

<article-title>Development of method of isolation and purification of PAHs from exposed semipermeable membrane devices (SPMDs) prior to GC-MS analysis</article-title>

Development of method of isolation and purification of PAHs from exposed semipermeable membrane devices (SPMDs) prior to GC-MS analysis

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Acta Chimica Slovaca ist in den folgenden Services indiziert: <ul> <li> Baidu Scholar </li> <li> Case </li> <li> Chemical Abstracts Service (CAS) - CAplus </li> <li> Chemical Abstracts Service (CAS) - SciFinder </li> <li> CNKI Scholar (China National Knowledge Infrastructure) </li> <li> CNPIEC - cnpLINKer </li> <li> Dimensions </li> <li> EBSCO </li> <li> ExLibris </li> <li> FSTA - Food Science &amp; Technology Abstracts </li> <li> Genamics JournalSeek </li> <li> Google Scholar </li> <li> Japan Science and Technology Agency (JST) </li> <li> J-Gate </li> <li> JournalTOCs </li> <li> KESLI-NDSL (Korean National Discovery for Science Leaders) </li> <li> MyScienceWork </li> <li> Naver Academic </li> <li> Naviga (Softweco) </li> <li> Paperbase </li> <li> Pirabase </li> <li> Polymer Library </li> <li> ProQuest </li> <li> Publons </li> <li> QOAM (Quality Open Access Market) </li> <li> ReadCube </li> <li> Semantic Scholar </li> <li> Sherpa/RoMEO </li> <li> TDNet </li> <li> TEMA Technik und Management </li> <li> Ulrich's Periodicals Directory/ulrichsweb </li> <li> WanFang Data </li> <li> Web of Science - Emerging Sources Citation Index </li> <li> WorldCat (OCLC) </li> <li> X-MOL </li> </ul>

<DIV align=left> Instructions for Authors Please submit your manuscripts to Acta Chimica Slovaca via e-mail to: <A href="mailto:acs@fchpt.stuba.sk">acs@fchpt.stuba.sk</A> Open Access License This journal provides immediate open access to its content under the <A href="https://creativecommons.org/licenses/by/4.0/">Creative Commons BY 4.0 license</A>. Authors who publish with this journal retain all copyrights and agree to the terms of the above-mentioned CC BY 4.0 license. Open Access Statement The journal is an Open Access journal that allows a free unlimited access to all its contents without any restrictions upon publication to all users. </DIV>

Acta Chimica Slovaca publish papers on fundamental and applied aspects of chemistry, biochemistry, chemical technology, chemical engineering and process control, biotechnology and food technology. <DIV align=justify> Why subscribe and read <UL> <LI>new scientific information from all branches of chemistry </LI></UL> Why submit <UL> <LI>fast peer review process and editing </LI></UL> Rejection Rate <UL> <LI>35% from submitted articles </LI></UL> Archiving Sciendo archives the contents of this journal in <A href="https://www.portico.org/">Portico</A> - digital long-term preservation service of scholarly books, journals and collections. Plagiarism Policy The editorial board is participating in a growing community of <A href="https://www.crossref.org/services/similarity-check/">Similarity Check System's</A> users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. </DIV>

Editor-in-Chief Milan Polaković, Faculty of Chemical and Food Technology, Slovak University of Technology, Slovakia Editor Lucia Birošová, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Slovakia Editorial Advisory Board Albert Breier, Institute of Molecular Physiology and Genetic, Slovak Academy of Sciences, Slovakia Ľudovít Varečka, Faculty of Chemical and Food Technology, Slovak University of Technology, Slovakia Ján Tkáč, Institute of Chemistry, Slovak Academy of Sciences, Slovakia Pavel Fellner, Faculty of Chemical and Food Technology, Slovak University of Technology, Slovakia Pavol Šajgalík, Institute of Inorganic Chemistry, Slovak Academy of Sciences, Slovakia Ľubor Fišera, Faculty of Chemical and Food Technology, Slovak University of Technology, Slovakia Miroslav Koóš, Institute of Chemistry, Slovak Academy of Sciences, Slovakia Editors ad hoc (experts from Slovak University of Technology and Slovak Academy of Sciences) Language Editors Barbora Dudášová, Faculty of Chemical and Food Technology, Slovak University of Technology, Slovakia Technical Editor Vladimír Dvonka, Faculty of Chemical and Food Technology, Slovak University of Technology, Slovakia Web Manager Ľuboš Čirka, Faculty of Chemical and Food Technology, Slovak University of Technology, Slovakia Administration Office Faculty of Chemical and Food Technology Radlinského 9, 812 37 Bratislava <A href="mailto:acs@fchpt.stuba.sk">acs@fchpt.stuba.sk</A> Journal Publisher Webpage <A href="https://content.sciendo.com/view/journals/acs/acs-overview.xml">content.sciendo.com/view/journals/acs/acs-overview.xml</A> Publisher De Gruyter Poland Bogumiła Zuga 32A Str. 01-811 Warsaw, Poland

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Volume 6 (2013): Issue 2 (October 2013)

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