Department of Geochemistry

Video file

Department of Geochemistry is occupied with research of composition, structure and properties of rocks including coal and derivatives using methods of surface chemistry, geochemistry and petrology. There are studies in processes of origin and accumulation of organic substance in rocks and in characteristics of biological sources and palaeo- environment. Products of not perfect combustion in relation with contamination of the environment and problems of carbon dioxide as a greenhouse gas are studied.

International Cooperation

Kyushu University
Japan
National Research Center
Egypt

Project Coke production using plastic wastes from Egypt and Czech Republic, Pyrolysis of coal/rubber blends in cokemaking,

Investigators: Ivana Sykorova, Martina Havelcova, Ahmed Melegy

Universität Leoben
Austria

Biomarkers and petrographic parameters: relationship between them and limits of their explanatory power, 13-18482S

United States Geological Survey, Reston
USA

Projekt ICCOP - Interlaboratory Study of D7708-Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks, Investigator: P.C. Hackley, Co-worker I. Sykorova and other 26 co-investigators from 15 countries

University of Sielsia in Sosnowiec
Poland

Project ICCOP - Self-heating of coal and coal wastes

University of Porto
Portugal

Classification of coal structures from self-heated coal and coal wastes.
Projekt ICCOP (Self-heating of coal and coal wastes)

INCAR (Instituto Nacional del Carbon, Oviedo)
Spain

Projekt ICCOP - New Handbook of Coal and Organic Petrology Editorial Board,

Investigator: I. Sykorova, I. Suarez Ruiz, K. Christanis

University of Patras
Greece

Project ICCOP - New Handbook of Coal and Organic Petrology Editorial Board,

investigators: I. Sykorova, I. Suarez Ruiz, K. Christanis

University of Salzburg
Austria

Publications:

- Finger F., Rene M., Verner K.: Bavarian phase and origin of the South Bohemian Batholith. - Journal of Geosciences

- Finger F., Verner K., Rene M., Dörr W.: Petrology of orthogneisses from the Strazek Moldanubian. - International Journal of Geoscinces

RWTH Aachen University, Austria
Austria

Results

Controlling the structure of nitrogen-doped zeolite-templated carbon for CO2 capture based on the synthesis conditions

2024

Publication:
N. Kostkova, Maryna Vorokhta, M. Kormunda, R. Pilar, G. Sadovska, P. Honcova, E. Mikyskova, J. Moravkova, P. Sazama, 2024. Controlling the structure of nitrogen-doped zeolite-templated carbon for CO2 capture based on the synthesis conditions, Microporous and Mesoporous Materials 379, 113286. https://doi.org/10.1016/j.micromeso.2024.113286

Alkali-activated geopolymers based on calcined phosphate sludges and metakaolin

2024

Publication:
Karoui O., Andrejkovičová S., Pato P., Patinha C., Perná I., Řimnáčová D., Hajjaji W., Ascenão G., Rocha F., Mlayah A. (2024): Alkali‑activated geopolymers based on calcined phosphate sludges and metakaolin. Environmental Science and Pollution Research 31,
45138–45161. https://doi.org/10.1007/s11356-024-34025-y

Foamed phosphate by-product based geopolymers and dye adsorption efficiency

2024

Publication:
Karoui O., Andrejkovičová S., Pato P., Patinha C., Řimnáčová D., Perná I., Hajjaji W., Rocha F., Mlayah A. (2024): Foamed phosphate by-product based geopolymers and dye adsorption efficiency. Applied Clay Science 257, 107446. https://doi.org/10.1016/j.clay.2024.107446

Metakaolin-based geopolymer formation and properties: The influence of the maturation period and environment (air, demineralized and sea water)

2024

Publication:
Perná I., Novotná M., Hanzlíček T., Šupová M., Řimnáčová D. (2024): Metakaolin-based geopolymer formation and properties: The influence of the maturation period and environment (air, demineralized and sea water). Journal of Industrial and Engineering Chemistry 134, 415–424. https://doi.org/10.1016/j.jiec.2024.01.005

Quaternary floodings in the Zanzibar Channel (NW Indian Ocean, Tanzania) – Identifying palaeoceanographic patterns and palaeoenvironment using a multiproxy study

2024

Publication:
K. Holcová, F. Scheiner, Martina Havelcová, P. Kraft, L. Ackerman, A. Tichá, K. Česáková, R. Milovský, 2024. Quaternary floodings in the Zanzibar Channel (NW Indian Ocean, Tanzania) – Identifying palaeoceanographic patterns and palaeoenvironment using a multiproxy study. Marine Geology 107366. https://doi.org/10.1016/j.margeo.2024.107366

Comparison of microwave and thermal reactivation of spent activated carbons: A pilot scale demonstration

2024

Publication:
Martina Švábová, Marek Šváb, Maryna Vorokhta, 2024. Comparison of microwave and thermal reactivation of spent activated carbons: A pilot scale demonstration. Journal of Water Process Engineering 67, 106189. https://doi.org/10.1016/j.jwpe.2024.106189

Formation and radiolytic alteration of uraniferous solid bitumen related to hydrothermal base-metal mineralizationin the Bytíz deposit, Příbram district, Czech Republic

2024

Publication:
Tatiana Larikova, Ivana Sýkorová, M. Racek, Martina Havelcová, V. Machovič, L. Lapčák, 2024. Formation and radiolytic alteration of uraniferous solid bitumen related to hydrothermal base-metal mineralizationin the Bytíz deposit, Příbram district, Czech Republic. International Journal of Coal Geology 286, 104590. https://doi.org/10.1016/j.coal.2024.104590

Solid bitumen as an indicator of petroleum migration, thermal maturity, and contact metamorphism: A case study in the Barrandian Basin (Silurian - Devonian), Czech Republic

2024

Publication:
V. Suchý, Ivana Sýkorová, J. Zachariáš, K. Brabcová Pachnerová, P. Dobeš, Martina Havelcová, I. Rozkošný, Q. Luo, W. Cao, J. Wu, P. Mácová, A. Viani, I. Světlík, D. Maxa, 2024. Solid bitumen as an indicator of petroleum migration, thermal maturity, and contact metamorphism: a case study in the Barrandian Basin (Silurian - Devonian), Czech Republic. International Journal of Coal Geology 286, 104493. https://doi.org/10.1016/j.coal.2024.104493

Hierarchically porous carbon foams coated with carbon nitride: Insights into adsorbents for pre-combustion and post-combustion CO2 separation

2025

Publication:
Maryna Vorokhta, M. I. M. Kusdhany, Martina Švábová, M. Nishihara, K. Sasaki, S. M. Lyth, 2025. Hierarchically porous carbon foams coated with carbon nitride: Insights into adsorbents for pre-combustion and post-combustion CO2 separation, Separation and Purification Technology 354, 129054. https://doi.org/10.1016/j.seppur.2024.129054

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Graphical abstract-Hierarchically porous carbon foams coated with carbon nitride
Graphical abstract

The effect of carbonization temperature on textural properties of sewage sludge-derived biochars as potential adsorbents

2024

Publication:
Řimnáčová D., Bičáková O., Moško J., Straka P., Čimová N. (2024): The effect of carbonization temperature on textural properties of sewage sludge-derived biochars as potential adsorbents. Journal of Environmental Management 359, 120947. 
https://doi.org/10.1016/j.jenvman.2024.120947

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Graphical abstract-The effect of carbonization temperature on textural properties of sewage sludge-derived biochars as potential adsorbents
Graphical abstract

Proximal ejecta of the putative parent impact crater for Australasian tektites at the Bolaven Plateau

2024

Publication:
Jiří Mizera, Vladimír Strunga (2024): Proximal ejecta of the putative parent impact crater for Australasian tektites at the Bolaven Plateau. Proceedings of the National Academy of Sciences 121, e2400122121. doi.org/10.1073/pnas.2400122121

Image
 Proximal ejecta of the putative parent impact crater for Australasian tektites at the Bolaven Plateau
Map showing distribution of the diamicton (circles with thickness in the legend) and lava flows on and around BP. Triangles indicate lavas with 40Ar-39Ar ages older than or roughly contemporaneous with the AAT impact; their color indicates alkaline (red) or tholeiitic (white) basalts. The map has been constructed by merging maps in figures 7 and S7 from ref. 1, and complemented with age and composition data from supplements in ref. 2.

Jurassic Park approached: a coccid from kimmeridgian cheirolepidiacean Aintourine Lebanese amber

2024

With the exception of a fly and a mite from the Triassic of Italy, all Mesozoic amber arthropods are from the Cretaceous. Late Jurassic Lebanese amber from Aintourine revealed a completely preserved adult coccid male (wing length 0.8 mm), Jankotejacoccus libanogloria gen. et sp. n., the earliest record of a plant sucking scale insect. Associated plant material included the cheirolepidiaceans Protopodocarpoxylon, Brachyphyllum and Classostrobus, plus Classopolis pollen, suggesting a forested temporary swamp habitat with ferns, tree ferns, water ferns, tall araucarian and ginkgoacean trees and shrubs. (Sub)tropic lateritic soil with vegetation debris underwent incomplete microbial decomposition in an anoxic water environment of peat swamp development. Strata-associated marine organisms support the Kimmeridgian age revealed by zircons. The discovery opens a new field of research in Jurassic amber fossils.

Publication:
P. Vršanský, H. Sendi, J. Kotulová, J. Szwedo, M. Havelcová, H. Palková, L. Vršanská, J. Sakala, Ľ. Puškelová, M. Golej, A. Biroň, D. Peyrot, D. Quicke, D. Néraudeau, P. Uher, S. Maksoud, D. Azar, 2024. Jurassic Park approached: a coccid from kimmeridgian cheirolepidiacean Aintourine Lebanese amber. National Science Review, nwae200. https://doi.org/10.1093/nsr/nwae200

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1 Jurassic Park approached: a coccid from 2 Kimmeridgian cheirolepidiacean Aintourine 3 Lebanese amber
Figure: First Jurassic insect from amber (Kimmeridgian Aintourine, Lebanon). (A) Locality and its 708 surrounding (see MM). (B) rough and prepared samples in UV and white light – from the same rock piece 709 as the holotype. (C and E) details of the insect inclusion Jankotejacoccus libanogloria Szwedo, Azar et 710 Sendi, sp. n., holotype, SNM Z 40023A and syninclusions. (D) pollen (SP-33219-1.1-4): upper row, 711 spores of a tree fern affiliated to Cyatheaceae/ Dicksoniaceae (2x Cyathidites spp., Deltoidospora sp.);

Evolution of palaeoclimate, palaeoenvironment and vegetation in Central Europe during the Miocene Climate Optimum.

2023

The studied parastratotype profile of the regional Carpathian foreland (late Burdigalien) in the Hevlín quarry indicates the existence of a warm-temperate to subtropical palaeoclimate with a zonal vegetation cover of subtropical deciduous evergreen forest and warm-temperate to subtropical mixed mesophytic forest. These findings are consistent with global trends (high temperatures and high sea level) and suggest the occurrence of relatively widespread wet conditions during the Miocene climatic optimum.
The result was achieved in collaboration with the Faculty of Science of Charles University Prague, the Faculty of Science of Masaryk University Brno, the University of Bonn and Geological Institute of the CAS.

Publication:
F. Scheiner, M. Havelcová, K. Holcová, N. Doláková, S. Nehyba, L. Ackerman, J. Trubač, Š. Hladilová, J. Rejšek, T. Utescher, 2023: Evolution of palaeoclimate, palaeoenvironment and vegetation in Central Europe during the Miocene Climate Optimum. Palaeogeography, Palaeoclimatology, Palaeoecology 611, 111364, doi.org/10.1016/j.palaeo.2022.111364
 

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Fig. A schematic simplified model of the reconstructed palaeoenvironment at the Hevlín locality. Positions of the analysed sections within the depositional system are indicated by white columns
Fig. A schematic simplified model of the reconstructed palaeoenvironment at the Hevlín locality. Positions of the analysed sections within the depositional system are indicated by white columns

Microporous carbon foams: The effect of nitrogen-doping on CO2 capture and separation via pressure swing adsorption

2023

Publication:
M. Vorokhta, M. I. M. Kusdhany, D. Vöröš, M. Nishihara, K. Sasaki, S.M., 2023. Microporous carbon foams: The effect of nitrogen-doping on CO2 capture and separation via pressure swing adsorption. Chemical Engineering Journal 471, 144524 https://doi.org/10.1016/j.cej.2023.144524 

Formation of Australasian tektites from gravity and magnetic indicators.

2023

Karimi, K., Kletetschka, G., Mizera, J., Meie, V., 2023. Formation of Australasian tektites from gravity and magnetic indicators. Scientific Reports 13, 12868. 
https://doi.org/10.1007/s10967-022-08692-5 

Diversity of the terpene synthesis in the Thuja species – a comparative chemotaxonomic study.

2023

Malhocká, A., Švábová, M., 2023. Diversity of the terpene synthesis in the Thuja species – a comparative chemotaxonomic study. Biochemical systematics and ekology 110, 104703. 
https://doi.org/10.1016/j.bse.2023.104703 

Activated three-dimensionally ordered micromesoporous carbons for CO2 capture

2023

Publication:
M. Vorokhta, J. Nováková, M. Dopita, I. Khalakhan, V. Kopecký Jr., M. Švábová, 2023. Activated three-dimensionally ordered micromesoporous carbons for CO2 capture. Materials Today Sustainability 24, 100509. 
https://doi.org/10.1016/j.mtsust.2023.100509

Oxygen determination in the Ti certified reference material ERM-EB090b by instrumental photon activation analysis

2023

Publication:
Mizera, J., Krausová, I., Chvátil, D., Olšanský, V., 2023. Oxygen determination in the Ti certified reference material ERM-EB090b by instrumental photon activation analysis. Journal of Radioanalytical and Nuclear Chemistry
doi: 10.1007/s10967-023-09260-1

A chemotaxonomic analysis of terpenes variation in Metasequoia glyptostroboides and Sequoiadendron giganteum resins

2023

Malhocká, A., Švábová, M., 2023. A Chemotaxonomic Analysis of Terpenes Variation in Metasequoia glyptostroboides and Sequoiadendron giganteum resins. Journal of Essential Oil Bearing Plants 26. 
https://doi.org/10.1080/0972060X.2023.2280139

New Insights into the Internal Structures and Geotechnical Rock Properties of the Giant San Andrés Landslide, El Hierro Island, Spain

2023

Publication: Klimeš J., Hussain Y., Mreyen A.S., Cauchie L., Schlögel R., Piroton V., Petružálek M., Blahůt J., René M., Meletlidis S., Havenith H.B., 2023. New insights into internal structures and geotechnical rock properties of the giant San Andrés landslide, El Hierro island, Spain. Remote Sensing 15, 1627, 1–22. 
https://doi.org/10.3390/rs15061627 

The thermal stability of carbon materials in the air: Quantitative structural investigation of thermal stability of carbon materials in air

2023

G. Sádovská, P. Honcová, J. Morávková, I. Jirka, M. Vorokhta, R. Pilař, J. Rathouský, D. Kaucký, E. Mikysková, P. Sazama, 2023. The thermal stability of carbon materials in the air: Quantitative structural investigation of thermal stability of carbon materials in air. Carbon 206, 211-225. 
https://doi.org/10.1016/j.carbon.2023.02.042 

Natural bitumen hosted uranium mineralization: stability of the radiogenic system.

2023

Strunga, V., Sihelská, K., Lorinčík, J., Holá, M., Krausová, I., Goliáš, V., Čurda, M., Mizera, J., 2023. Natural bitumen hosted uranium mineralization: stability of the radiogenic systém. Journal of Radioanalytical and Nuclear Chemistry 332, 1597–1606. 
https://doi.org/10.1007/s10967-022-08692-5

Biochar as an effective material for acetone sorption and the effect of surface area on the mechanism of sorption

2023

Švábová M., Bičákova O., Vorokhta M., 2023. Biochar as an effective material for acetone sorption and the effect of surface area on the mechanism of sorption. Journal of Environmental Management 348, 119205. 
https://doi.org/10.1016/j.jenvman.2023.119205  

Mercury Occurrence and Speciation in Sediments from Hard Coal Mining in Czechia.

2023

Publication:
Vöröš D., Baizán P. D., Slavíček K., Díaz-Somoano M., Geršlová E., 2023. Mercury Occurrence and Speciation in Sediments from Hard Coal Mining in Czechia. Journal of Hazardous Materials 459, 132204. 
https://doi.org/10.1016/j.jhazmat.2023.132204  

Microporous carbon foams: The effect of nitrogen-doping on CO2 capture and separation via pressure swing adsorption

2023

M. Vorokhta, M. I. M. Kusdhany, D. Vöröš, M. Nishihara, K. Sasaki, S.M., 2023. Microporous carbon foams: The effect of nitrogen-doping on CO2 capture and separation via pressure swing adsorption. Chemical Engineering Journal 471, 144524. 
https://doi.org/10.1016/j.cej.2023.144524 

Formation of Australasian tektites from gravity and magnetic indicators

2023

Karimi, K., Kletetschka, G., Mizera, J., Meie, V., 2023. Formation of Australasian tektites from gravity and magnetic indicators. Scientific Reports 13, 12868. 
https://doi.org/10.1007/s10967-022-08692-5 Q2

Diversity of the terpene synthesis in the Thuja species – a comparative chemotaxonomic study

2023

Malhocká, A., Švábová, M., 2023. Diversity of the terpene synthesis in the Thuja species – a comparative chemotaxonomic study. Biochemical systematics and ekology 110, 104703. 
https://doi.org/10.1016/j.bse.2023.104703

A chemotaxonomic analysis of terpenes variation in Metasequoia glyptostroboides and Sequoiadendron giganteum resins

2023

Malhocká, A., Švábová, M., 2023. A Chemotaxonomic Analysis of Terpenes Variation in Metasequoia glyptostroboides and Sequoiadendron giganteum resins. Journal of Essential Oil Bearing Plants 26.  
https://doi.org/10.1080/0972060X.2023.2280139

Natural bitumen hosted uranium mineralization: stability of the radiogenic system

2023

Strunga, V., Sihelská, K., Lorinčík, J., Holá, M., Krausová, I., Goliáš, V., Čurda, M., Mizera, J., 2023. Natural bitumen hosted uranium mineralization: stability of the radiogenic systém. Journal of Radioanalytical and Nuclear Chemistry 332, 1597–1606. 
https://doi.org/10.1007/s10967-022-08692-5 

The thermal stability of carbon materials in the air: Quantitative structural investigation of thermal stability of carbon materials in air

2023

G. Sádovská, P. Honcová, J. Morávková, I. Jirka, M. Vorokhta, R. Pilař, J. Rathouský, D. Kaucký, E. Mikysková, P. Sazama, 2023. The thermal stability of carbon materials in the air: Quantitative structural investigation of thermal stability of carbon materials in air. Carbon 206, 211-225. 
https://doi.org/10.1016/j.carbon.2023.02.042  

Evolution of palaeoclimate, palaeoenvironment and vegetation in Central Europe during the Miocene Climate Optimum

2023

F. Scheiner, M. Havelcová, K. Holcová, N. Doláková, S. Nehyba, L. Ackerman, J. Trubač, Š. Hladilová, J. Rejšek, T. Utescher, 2023. Evolution of palaeoclimate, palaeoenvironment and vegetation in Central Europe during the Miocene Climate Optimum. Palaeogeography, Palaeoclimatology, Palaeoecology 611, 111364.   
https://doi.org/10.1016/j.palaeo.2022.111364 

Chemical character and structure of uraniferous bitumens (Vrchlabí, Czech Republic)

2022

Machovič V., Havelcová M., Lapčák L., Mizera J., Sýkorová I., 2022. Chemical character and structure of uraniferous bitumens (Vrchlabí, Czech Republic). International Journal of Coal Geology, Volume 264, December 2022, DOI: doi.org/10.1016/j.coal.2022.104137 
 

Neutron Activation Analysis in Urban Geochemistry: Impact of Traffic Intensification after Opening the Blanka Tunnel Complex in Prague

2022

Mizera J., Havelcová M., Machovič V., Borecká L., Vöröš D., 2022. Neutron Activation Analysis in Urban Geochemistry: Impact of Traffic Intensification after Opening the Blanka Tunnel Complex in Prague. Minerals 12, 281. DOI: doi.org/10.3390/min12030281

Late Carboniferous palaeodepositional changes recorded by inorganic proxies and REE data from the coal-bearing strata: An example on the Czech part of the Upper Silesian Coal basin (USCB)

2022

Vöröš D., Geršlová E., Šimoníková L., Díaz-Somoano M., 2022. Late Carboniferous palaeodepositional changes recorded by inorganic proxies and REE data from the coalbearing strata: An example on the Czech part of the Upper Silesian Coal basin (USCB), Journal of Natural Gas Science and Engineering, Volume 107, November 2022, DOI: doi.org/10.1016/j.jngse.2022.104789

Journal of Petroleum Science and Engineering Volume 210, March 2022, 109980

2022

Švábová M., Vorokhta M., 2022. Water sorption and transport in Silurian shales. Journal of Petroleum Science and Engineering, Volume 210, March 2022,  DOI: doi.org/10.1016/j.petrol.2021.109980

Palaeo-thermal history of the Blanice Graben (the Bohemian Massif, Czech Republic): The origin of anthracite in a late-Variscan strike-slip basin

2022

Suchý V., Zachariáš J., Sýkorová I., Kořínková D., Pešek J., Pachnerová-Brabcová, K., Qingyong Luo, Filip, J., Světlík, I., 2022. Paleothermal history of the Blanice Graben (the Bohemian Massif, Czech Republic): The origin of anthracite in a late-Variscan strike-slip basin. International Journal of Coal Geology, 263, 104, 104129, 1-23. doi.org/10.1016/j.coal.2022.104129

Distinction between consecutive construction phases by combined microscopic study and quantitative pore space analysis: Case study of Horn's Bastion, Riga Castle (Latvia)

2022

Rasina M., Lusens M., Racek M., Přikrylová J., Weishauptová Z., Řimnáčová D., Přikryl R., 2022. Distinction between consecutive construction phases by combined microscopic study and quantitative pore space analysis: Case study of Horn’s Bastion, Riga Castle (Latvia), Journal of Cultural Heritage, Volume 57, September–October 2022, Pages 88-96. DOI:  doi.org/10.1016/j.culher.2022.08.004

Free-Blockage Mesoporous Silica Nanoparticles Loaded with Cerium Oxide as ROS-Responsive and ROS-Scavenging Nanomedicine

2022

Purikova O., Tkachenko I., Smid B., Veltruska K., Dinhova T.N., Vorokhta M., Kopecky V., Hanykova L., Ju X.H., 2022. Free-Blockage Mesoporous Silica Nanoparticles Loaded with Cerium Oxide as ROS-Responsive and ROS-Scavenging Nanomedicine. Advanced Functional Materials 32, 2208316. doi.org/10.1002/adfm.202208316

Characterization of gas diffusion layer transport properties by limiting current approach

2022

Yakovlev Y.V., Rodríguez M.G., Lobko Y.V., Vorokhta M., Kúš P., Matolínová I., Matolín V., 2022. Characterization of gas diffusion layer transport properties by limiting current approach. Electrochimica Acta, Volume 404, February 2022, DOI: doi.org/10.1016/j.electacta.2021.139755

Investigation of Accessory Minerals from the Blatná Granodiorite Suite, Bohemian Massif, Czech Republic

2022

René M., 2022. Investigation of accessory minerals from the Blatná granodiorite suite, Bohemian Massif, Czech Republic. In: René M. (ed.) Mineralogy, IntechOpen Ltd., London, 165–185. DOI: 10.5772/intechopen.102628

Geology and Petrography of Uraniferous Bitumens in Permo-Carboniferous Sediments (Vrchlabí, Czech Republic)

2022

Publication: Havelcová M., Sýkorová I., René M., Mizera J., Coubal M., Machovič V., Strunga V., Goliáš V., (2022): Geology and Petrography of Uraniferous Bitumens in Permo-Carboniferous Sediments (Vrchlabí, Czech Republic). Minerals 12, 544. DOI: doi.org/10.3390/min12050544

Services

Fuel analysis

 

Dry sample handling (ČSN 44 1304)  

Dominik Vöröš

Wet sample handling (ČSN 44 1304)  
Sieving      
Determination
Determination of moisture content (ČSN 44 1377)   Dominik Vöröš
Determination of ash content (ČSN ISO 1171)  
Determination of volatile matter content (ČSN ISO 562)      
Determination of gross calorific value (ČSN ISO 1928)       
Determination of total carbon and hydrogen contents(ČSN 44 1355)  
Determination of total nitrogen content – Kjeldahl method (ČSN ISO 333)       
Determination of total sulphur content (ČSN 44 1379)  
Determination of sulphur forms contents (ČSN ISO 157)  
Determination of total carbon, hydrogen and nitrogen content – Instrumental method (ČSN ISO 29541)     CHNS/O microanalyser Flash FA 1112 Thermo Finnigan

Determination of iodine number in activated carbon (ASTM-D4607)     
 
Determination of carbon dioxide content (ČSN ISO 925)       

Chromatografic analysis

Sample preparation
Sample extraction Soxhlet extraktor Büchi B-811, Dionex Accelerated Solvent Extractor Martina Havelcová
Determination of extracted fractions 
Analyses
Qualitative assessment of extractable compounds Trace Ultra - DSQ II ThermoScientificTrace 1310 GC - ISQ Thermo Scientific Martina Havelcová
Quantitation of extractable compounds
Determination of PAHs (ČSN 75 7554)
Determination of BTEX  
Determination of volatile organic compounds (headspace)  
Determination by pyrolysis-gas chromatography CDS Pyroprobe 5150 -Trace Ultra - DSQ II ThermoScientific

ICP laboratory

The method of optical emission spectrometry with inductively coupled plasma (ICP-OES) is used for the elemental analysis of water and solid matrices. The method enables the determination of a wide range of major, minor and trace elements. The spectrometer uses the principle of emission and subsequent detection of light radiation of ionized elements present in the sample. The operation of the device requires argon as a carrier gas for plasma generation. For the analysis of solid samples, it is necessary to ensure their decomposition and subsequent completion into solution

ICP/OES equipment
optical emission spectrometer with inductively coupled plasma Agilent 5900 with simultaneous axial and radial plasma observation (SVDV mode) 
• autosampler 
• Hg hydride vapor generator 
• PreeKem M6 microwave digestion with the HP16 rotor

Microwave digestion of coal, rock and sediments
Pseudo-total method (aqua regia)  

Dominik Vöröš

Total digestion method (alkaline fusion)  
ICP-OES analysis
Up to 5 elements (of any kind) Spektrometr Agilent 5900

Dominik Vöröš

5-10 elements (trace elements)
Over 10 elements (major plus trace elements)
Hg analysis

Sorption and porosimetric analysis

Sorption analysis
Determination of volume, surface area and distribution of micropores Gravimetrický sorpční analyzátor IGA - 100 (Hiden Isochema)

Martina Švábová
Maryna Vorokhta
Daniela Řimnáčová 
 

Determination of moisture content
Determination of sorption of water vapour and organic vapours
Determination of CO2 sorption capacity at atmospheric pressure and pressures up to 2 MPa
Determination of micropore volume and surface area according to the Lippens and de Boer Vads-t plot method Volumetric sorption analyser SURFER (Thermo Scientific) 
Determination of CO2 and CH4 sorption capacity under supercritical conditions High pressure manometric sorption apparatus (originally designed and manufactured equipment) Daniela Řimnáčová 
Porosimetric analysis
Determination of volume, surface area and distribution of meso-, macro- and coarse pores, apparent density and porosity Porosimeter Pascal 140 + 240 Porotec, Porosimeter PASCAL 140 + 440 EVO (Thermo Scientific)

 

Martina Švábová
Maryna Vorokhta
Daniela Řimnáčová 

Pycnometry
Determination of skeletal (helium) density Pyknometr Pycnomatic ATC (Thermo Scientific)


Martina Švábová

Materials preparation
Heating and cooling of materials in a temperature range of 25-1300 ºC in an inert atmosphere Tube furnace 8013 T (CLASIC)

Maryna Vorokhta

Physical activation of carbon materials using CO2

Petrographic analysis

Processing of samples and microscopic preparations
Macropetrographic characteristics and photo documentation of rock sediments including coal   Alexandr Šulc 
Preparation of piece and grain polish and think sections for analyzes of organic matter and minerals (ISO 7404 -2) Simplimet 3000, Leco GPX 300, Discoplan – TS, Logitech PM 5, Logitech CL 50
Micropetrographic analysis
Determination of light reflectance of coal and dispersed organic matter in rocks (ISO 7404 - 5) NIKON a systém analýzy obrazu Lucia - Laboratory Imaging Ivana Sýkorová  
Determination of the maceral composition of coal and dispersed organic matter in rocks (ISO 7404 - 3) Olympus BX51 a systém QDI Coal - CRAIC
Determination of microlithotype composition of coal (ISO 7404 - 4)  
Quality test of solid fuel for spits (ČSN-EN 1860-2)  
Determination of microhardness
 
DuraScan - 20, Struers