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Zbigniew Samczyński
Laboratory of Nuclear Analytical Techniques, Institute of Nuclear Chemistry and Technology, 03-195 Warsaw, Poland

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Journal article
Published: 03 September 2020 in Sustainability
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High temperature gas-cooled reactors have recently gained importance as a source of electricity and process heat. Nuclear fuel used in these reactors consists of TRISO (TRiple coated ISOtropic) coated particles, where spherical grains of UO2 or UC2 or UCO kernel are covered with four successive layers consisting of pyrolytic carbon and silicon carbide. Of great importance is the chemical purity of reagents and substances used for the production of TRISO coated fuel particles. Analytical techniques ensuring the determination of elements at trace levels are inductively coupled plasma mass spectrometry (ICP-MS) and neutron activation analysis (NAA). They were applied in this work for the chemical characterization of substrates used for TRISO fuel production. Two analytical procedures were developed: the first, where materials are analyzed using ICP-MS, and the second with the aid of NAA. Successive stages of these procedures are described with details. Results of quantitative chemical analysis of examined substances are reported as well as detection limits for the investigated elements. Moreover, the expanded uncertainties estimated for the determined elements while employing the devised analytical procedures are presented.

ACS Style

Ewelina Chajduk; Paweł Kalbarczyk; Jakub Dudek; Marta Pyszynska; Anna Bojanowska-Czajka; Zbigniew Samczyński. Development of Analytical Procedures for Chemical Characterization of Substrates for the Production of TRISO Coated Particles as Nuclear Fuel in High Temperature Gas-Cooled Reactors. Sustainability 2020, 12, 7221 .

AMA Style

Ewelina Chajduk, Paweł Kalbarczyk, Jakub Dudek, Marta Pyszynska, Anna Bojanowska-Czajka, Zbigniew Samczyński. Development of Analytical Procedures for Chemical Characterization of Substrates for the Production of TRISO Coated Particles as Nuclear Fuel in High Temperature Gas-Cooled Reactors. Sustainability. 2020; 12 (17):7221.

Chicago/Turabian Style

Ewelina Chajduk; Paweł Kalbarczyk; Jakub Dudek; Marta Pyszynska; Anna Bojanowska-Czajka; Zbigniew Samczyński. 2020. "Development of Analytical Procedures for Chemical Characterization of Substrates for the Production of TRISO Coated Particles as Nuclear Fuel in High Temperature Gas-Cooled Reactors." Sustainability 12, no. 17: 7221.

Journal article
Published: 26 September 2017 in Nukleonika
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The article describes studies on the separation of uranium from acid pregnant leach solutions obtained from Polish uranium ores: dictyonema shales and sandstone rocks. Ion exchange chromatography was applied for uranium sorption, using commercially available, strongly basic anion exchanger, Dowex 1. In model experiments, the influence of degree of crosslinking of Dowex 1 on the efficiency of uranium extraction was investigated. The effect of H2SO4 concentration on the breakthrough curve of uranyl ions for the Dowex 1 resins, of different crosslinking: X4, X8 and X10, was examined. Unexpectedly high increase of exchange capacity of uranium was observed in case of Dowex 1X10. This gives potential opportunity of improving the effectiveness of uranium recovery process. Applying column packed with Dowex 1X10, ‘yellow cake’ with ca. 92% yield and high purity of recovered uranium was obtained. A block diagram of the procedure for uranium and lanthanides extraction from acidic leach liquor has been proposed.

ACS Style

Bożena Danko; Rajmund S. Dybczyński; Zbigniew Samczyński; Dorota Gajda; Irena Herdzik-Koniecko; Grażyna Zakrzewska-Kołtuniewicz; Ewelina Chajduk; Krzysztof Kulisa. Ion exchange investigation for recovery of uranium from acidic pregnant leach solutions. Nukleonika 2017, 62, 213 -221.

AMA Style

Bożena Danko, Rajmund S. Dybczyński, Zbigniew Samczyński, Dorota Gajda, Irena Herdzik-Koniecko, Grażyna Zakrzewska-Kołtuniewicz, Ewelina Chajduk, Krzysztof Kulisa. Ion exchange investigation for recovery of uranium from acidic pregnant leach solutions. Nukleonika. 2017; 62 (3):213-221.

Chicago/Turabian Style

Bożena Danko; Rajmund S. Dybczyński; Zbigniew Samczyński; Dorota Gajda; Irena Herdzik-Koniecko; Grażyna Zakrzewska-Kołtuniewicz; Ewelina Chajduk; Krzysztof Kulisa. 2017. "Ion exchange investigation for recovery of uranium from acidic pregnant leach solutions." Nukleonika 62, no. 3: 213-221.

Comparative study
Published: 01 August 2012 in Talanta
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Analytical performance of inductively coupled plasma mass spectrometry (ICP-MS) for determination of lanthanides in plant materials was investigated and compared with neutron activation analysis (NAA) as well as ion chromatography (IC) with UV-VIS detection. Two sample preparation protocols were tested: (i) microwave assisted digestion by concentrated nitric acid; (ii) microwave digestion involving silica and fluoride removal, followed by the selective and quantitative lanthanides group separation from the plant matrix. Several Certified Reference Materials (CRM) of plant origin were used for the evaluation of the accuracy of the applied analytical procedures. The consistency of results, obtained by various methods, enabled to establish the tentative recommended values (TRV) for several missing elements in one of CRMs. The ICP-MS, due to its very high sensitivity, has the potential to contribute to this aim. The discrepancy of the results obtained by various methods was discussed in a view of possible matrix effects related to the composition of investigated materials.

ACS Style

Ewa Bulska; Bożena Danko; Rajmund S. DybczyŃski; Agnieszka Krata; Krzysztof Kulisa; Zbigniew Samczyński; Marcin Wojciechowski. Inductively coupled plasma mass spectrometry in comparison with neutron activation and ion chromatography with UV/VIS detection for the determination of lanthanides in plant materials. Talanta 2012, 97, 303 -311.

AMA Style

Ewa Bulska, Bożena Danko, Rajmund S. DybczyŃski, Agnieszka Krata, Krzysztof Kulisa, Zbigniew Samczyński, Marcin Wojciechowski. Inductively coupled plasma mass spectrometry in comparison with neutron activation and ion chromatography with UV/VIS detection for the determination of lanthanides in plant materials. Talanta. 2012; 97 ():303-311.

Chicago/Turabian Style

Ewa Bulska; Bożena Danko; Rajmund S. DybczyŃski; Agnieszka Krata; Krzysztof Kulisa; Zbigniew Samczyński; Marcin Wojciechowski. 2012. "Inductively coupled plasma mass spectrometry in comparison with neutron activation and ion chromatography with UV/VIS detection for the determination of lanthanides in plant materials." Talanta 97, no. : 303-311.

Journal article
Published: 01 January 2012 in The Scientific World Journal
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The preparation, certification, and characterization of two new biological certified reference materials for inorganic trace analysis have been presented. They are based on two different varieties of tobacco leaves, namely, Oriental Basma Tobacco Leaves (INCT-OBTL-5), grown in Greece, and Polish Virginia Tobacco Leaves (INCT-PVTL-6), grown in Poland. Certification of the materials was based on the statistical evaluation of results obtained in a worldwide interlaboratory comparison, in which 87 laboratories from 18 countries participated, providing 2568 laboratory averages on nearly 80 elements. It was possible to establish the certified values of concentration for many elements in the new materials, that is, 37 in INCT-OBTL-5 and 36 in INCT-PVTL-6, including several toxic ones like As, Cd, Hg, Pb, and so forth. The share and the role of instrumental analytical techniques used in the process of certification of the new CRMs are discussed.

ACS Style

Zbigniew Samczyński; Rajmund S. Dybczyński; Halina Polkowska-Motrenko; Ewelina Chajduk; Marta Pyszynska; Bożena Danko; Elżbieta Czerska; Krzysztof Kulisa; Katarzyna Doner; Paweł Kalbarczyk. Two New Reference Materials Based on Tobacco Leaves: Certification for over a Dozen of Toxic and Essential Elements. The Scientific World Journal 2012, 2012, 1 -16.

AMA Style

Zbigniew Samczyński, Rajmund S. Dybczyński, Halina Polkowska-Motrenko, Ewelina Chajduk, Marta Pyszynska, Bożena Danko, Elżbieta Czerska, Krzysztof Kulisa, Katarzyna Doner, Paweł Kalbarczyk. Two New Reference Materials Based on Tobacco Leaves: Certification for over a Dozen of Toxic and Essential Elements. The Scientific World Journal. 2012; 2012 ():1-16.

Chicago/Turabian Style

Zbigniew Samczyński; Rajmund S. Dybczyński; Halina Polkowska-Motrenko; Ewelina Chajduk; Marta Pyszynska; Bożena Danko; Elżbieta Czerska; Krzysztof Kulisa; Katarzyna Doner; Paweł Kalbarczyk. 2012. "Two New Reference Materials Based on Tobacco Leaves: Certification for over a Dozen of Toxic and Essential Elements." The Scientific World Journal 2012, no. : 1-16.

Comparative study
Published: 10 September 2009 in Applied Radiation and Isotopes
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Lanthanides represent an interesting group of elements which are steadily gaining importance in science and in industry. Literature data suggest that they may have a role in regulating cellular processes and also in agriculture enhancing plant growth. Only few instrumental methods like NAA, ICP-OES and ICP-MS have potential for the determination of low levels of all lanthanides, but in practice they often have to be combined with suitable separation/preconcentration methods to achieve maximum number of elements being determined and to assure good accuracy and precision. In this work an attempt has been made to compare the performance of both variants of NAA: purely instrumental activation analysis (INAA) and radiochemical mode (RNAA) with pre- and post-irradiation group separation for the determination of individual lanthanides with the special emphasis on rarely determined elements (Gd, Ho, Er, Tm, Lu). This has been done by the analysis of two reference materials with different matrices viz. biological (CTA-OTL-1) and mineral (CTA-FFA-1). The results are compared with those obtained by ion chromatography (IC) employing the same lanthanide group preseparation scheme as in the case of RNAA.

ACS Style

Rajmund S. DybczyŃski; Elżbieta Czerska; Bożena Danko; Krzysztof Kulisa; Zbigniew Samczyński. Comparison of performance of INAA, RNAA and ion chromatography for the determination of individual lanthanides. Applied Radiation and Isotopes 2009, 68, 23 -27.

AMA Style

Rajmund S. DybczyŃski, Elżbieta Czerska, Bożena Danko, Krzysztof Kulisa, Zbigniew Samczyński. Comparison of performance of INAA, RNAA and ion chromatography for the determination of individual lanthanides. Applied Radiation and Isotopes. 2009; 68 (1):23-27.

Chicago/Turabian Style

Rajmund S. DybczyŃski; Elżbieta Czerska; Bożena Danko; Krzysztof Kulisa; Zbigniew Samczyński. 2009. "Comparison of performance of INAA, RNAA and ion chromatography for the determination of individual lanthanides." Applied Radiation and Isotopes 68, no. 1: 23-27.