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  1. No Access

    Article

    Comments on paper: Veronika Silliková, Jana Jakubčinová, Miroslav Horník, Igor Gomola, Silvia Dulanská, “Determination of caesium-137 in water samples using modified carbon microfibers”, J. Radioanal. Nuclear Chem. (2022) 331:1275–1284. https://doi.org/10.1007/s10967-022–08212

    Dušan Berek in Journal of Radioanalytical and Nuclear Chemistry (2023)

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    Chapter

    Polymers and Their Complexity

    Synthetic polymers are multicomponent complex systems having overlap** distributed properties. This chapter focuses on description of these overlap** distributions of molecular properties such as molar mas...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Liquid Chromatography as a Tool for Determination of Distribution of Polymer Molecular Characteristics

    In order to assess the distribution of their molecular properties, polymers must be separated. This book is devoted to the methods of polymer separations in solution. This chapter is intended to provide basic ...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Entropy/Enthalpy Compensation in Polymer Liquid Chromatography

    This chapter provides the basic concept of entropy/enthalpy compensation phenomenon operative in polymer LC. History of the development of the methods based on entropy/enthalpy compensation is followed by spec...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Liquid Chromatography Under Limiting Conditions

    LCLC is another approach to exploit the phenomenon of entropy/enthalpy compensation. The methods are broadly categorized as “barrier methods”. The working principle based on the nature of the eluent and barrie...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Challenges and Opportunities

    The final chapter of the book summarizes the strengths and limitations of different methods of LC of polymers. Still existing challenges and opportunities are highlighted.

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Conventional Entropy-Controlled Methods of Polymer Liquid Chromatography

    This chapter is devoted to the polymer LC methods, in which the processes of permeation and exclusion of macromolecules into/from the porous column packing particles play a decisive role. For obvious reasons, ...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Book

    Liquid Chromatography of Synthetic Polymers

    Entropy/Enthalpy Compensation and Critical Conditions

    Muhammad Imran Malik, Dusan Berek in Physical Chemistry in Action (2023)

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    Chapter

    Liquid Chromatography at Critical Conditions

    The most important method of polymer LC based on entropy/enthalpy compensation namely LCCC is comprehensively discussed in this chapter. The detailed discussion focuses on the establishment of the critical con...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Temperature Gradient Interaction Chromatography

    The chapter focuses on phenomenon of entropy/enthalpy compensation during the chromatographic run by continuous change in the temperature of the system. The working principle of the method is followed by a com...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Hyphenation of Liquid Chromatography with Spectroscopy

    The chapter provides a comprehensive overview of the current state-of-the-art of the hyphenation of polymer LC methods with spectroscopic techniques (FTIR, MS, NMR). Challenges in hyphenation of LC with spectr...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Non-exclusion Methods of Polymer Liquid Chromatography

    In this chapter, a brief discussion of most important polymer LC procedures, which employ the enthalpy-based separation mechanism, generally designated as enthalpic interactions, is provided. As mentioned prev...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Eluent Gradient Interaction Chromatography

    The chapter focuses on phenomenon of entropy/enthalpy compensation during the chromatographic run by continuous change in the mobile phase (eluent) composition. The working principle of the method is followed ...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Two-Dimensional Liquid Chromatography

    The chapter provides a comprehensive description of possibilities of coupling of different modes of polymer LC. Approaches of two-dimensional analysis are followed by description of the experimental setup for ...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Polymers in Solution

    This chapter is destined for the readers not involved in the research and applications of macromolecular substances. Its purpose is the brief, simplified elucidation of the selected principles and terms, major...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

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    Chapter

    Instrumentation for Polymer Liquid Chromatography

    Due to dissimilar nature of separation for different modes of polymer LC, several additional challenges are posed compared to HPLC of small molecules. This chapter mainly focuses on peculiarities of instrument...

    Muhammad Imran Malik, Dusan Berek in Liquid Chromatography of Synthetic Polymers (2023)

  17. No Access

    Article

    Microporous carbon fibers prepared by carbonization of cellulose as carriers of particles of active substances

    Microporous carbon fibers prepared by controlled carbonization of cellulose proved promising carrier of nano- and microparticles of solid active substances. The average pore size of the carbon fibers ranges fr...

    Ivan Novák, Ondrej Šauša, Igor Maťko, Esra Simsek Bilgin, Dušan Berek in Chemical Papers (2020)

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    Article

    Carbon nanofiber based CuO nanorod counter electrode for enhanced solar cell performance and adsorptive photocatalytic activity

    Dye-sensitized solar cells (DSSCs) are known as new generation solar cell of photovoltaic technologies (PV), and have become hotspot topic in the PV research. DSSCs include four main components such as photoan...

    Bayram Kilic, Esra Bilgin Simsek, Sunay Turkdogan in Journal of Nanoparticle Research (2020)

  19. No Access

    Article

    Porous carbon fibers prepared from cellulose

    A series of porous carbon microfibers has been prepared by controlled carbonization of cellulose precursors. Their surface area determined by the BET method from argon absorption ranges from about 1 to almost ...

    Igor Maťko, Ondrej Šauša, Katarína Čechová in Journal of Thermal Analysis and Calorimetry (2019)

  20. Article

    The 24th International Symposium on Separation Sciences (ISSS2018)

    Milan Hutta, Dušan Berek in Chromatographia (2019)

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