35 Result(s)
within
V. Jedináková-Křížová
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Article
Technology of DTPA and immunoglobulins conjugation and their attachment to 90Y and 177Lu radionuclides
The aim of the study of labeling of ligand–antibody conjugates was to find optimal conditions of preparing of these conjugates and appropriate radioactivity of selected nuclide for applications in nuclear medi...
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Article
Interaction of 99Tc onto bentonite and influence of Fe(II) and (Ca, Mg) ion exchange in its interlayers
99Tc is a redox active radionuclide, which is present as contaminant at a number of sites where nuclear fuel cycle operations have been carried out. The aim of our research was study of b...
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Article
Diffusion of 99-technetium in compacted bentonite under aerobic and anaerobic conditions
The main aim of this study was to investigate diffusion of technetium 99Tc under different conditions. Because technetium represents one of the most dangerous fission products due to its very long halftime and hi...
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Article
Characterization of metal-texaphyrin complexes and preparation of radionuclide-texaphyrin complexes
This paper summarizes results achieved in labelling texaphyrin with radionuclides (e.g., with 177Lu) and characterization of the metal-texaphyrin complexes. Thin layer chromatography (TLC) method was used for the...
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Article
Radiochemical studies in the development of deep geological repository in the Czech Republic
In this contribution the main achievements of radiochemical studies performed within the framework of the Czech DGR development programme are summarized and further plans outlined. The results of selection of ...
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Article
Quality assessment of hydrosphere in the vicinity of Czech nuclear power plants by radioanalytical methods
The paper deals with the impact of nuclear plants and radioactive waste disposal on surface and ground water quality in their vicinity using various radiometric and radioanalytical methods. The impact of nucle...
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Article
Radiochemical studies in the development of deep geological repository in the Czech Republic
In this contribution the main achievements of radiochemical studies performed within the framework of the Czech DGR development programme are summarized and further plans outlined. The results of selection of ...
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Article
Characterization of metal-texaphyrin complexes and preparation of radionuclide-texaphyrin complexes
This paper summarizes results achieved in labelling texaphyrin with radionuclides (e.g., with 177Lu) and characterization of the metal-texaphyrin complexes. Thin layer chromatography (TLC) method was used for the...
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Article
Diffusion of 99-technetium in compacted bentonite under aerobic and anaerobic conditions
The main aim of this study was to investigate diffusion of technetium 99Tc under different conditions. Because technetium represents one of the most dangerous fission products due to its very long halftime and hi...
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Article
The use of liquid scintillation spectrometry for the determination of radionuclidic purity of 90Y from a radiochemical 90Y/90Srgenerator
An extraction technique for the separation of 90Sr from a high excess of90Y has been developed. This procedure can be used for the determination of trace amounts of90Sr in90Y prepared by a radiochemical90Y/90Sr g...
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Article
Extraction of 85Sr by a nitrobenzene solution of bis-1,2-dicarbollylcobaltate in the presence of p-nonylphenylnonaethylene glycol and its use for the determination of nonionic surfactants
The equilibrium data and the typical maxima concerning the dependences of the Sr distribution ratios on the analytical concentration of p-nonylphenylnonaethylene glycol in the system under study can be explain...
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Article
Chromatographic and electromigration analysis of rhenium compounds used in radiopharmacy
A large group of radiopharmaceuticals includes complex radionuclide-ligand compounds which are very sensitive to the preparation conditions, as for example pH of reaction mixture, incubation time, temperature,...
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Article
Study of holmium (III) and yttrium(III) with DOTA complexes as candidates for radiopharmaceutical use
Reaction conditions for complexation of radionuclides with DOTA were studied using thinlayer chromatography (TLC), paper chromatography (PC) and potentiometry. It was found that all of the studied complexes ca...
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Article
Analytical methods applied in preparation of radiolabelled proteins and antibodies
The concept of application of the radiolabelled antibodies in medicine has already proved its vitality. It is obvious that the synthesis and characterisation of intermediates and final products necessitate uti...
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Article
Radioactively labelled porphyrin derivatives
Radioactive labelling of guanidine-bearing tetraphenylporphyrin and Dy—texaphyrin with selected radionuclides (166Ho and 90Y) is described. A basic characterisation of studied porphyrin and texaphyrin, including ...
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Article
Characterisation of Ho-DTPA and Y-DTPA complexes by capillary isotachophoresis and TLC with radiometric detection
The complexation of holmium and yttrium with DTPA (diethylentriaminepentaacetic acid) was studied as a first step for labelling of monoclonal antibodies for radiopharmaceutical application. Thin-layer chromato...
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Article
Extraction separation of strontium and yttrium radionuclides by hydrogen heptachlorodicarbollylcobaltate in the presence of benzo-15-crown-5
Extraction of strontium and yttrium by the nitrobenzene solution of H+-form of heptachloro-bis-1,2-dicarbollylcobaltate (H+B–) in the presence of benzo-15-crown-5 (B15C5, L) has been investigated. The presence of...
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Article
The Study of Various Rhenium Compounds by Capillary Electrophoresis
The conditions for the synthesis of rhenium compounds (pH, reaction time, concentration of reducing agent) have been determined previously by thin-layer chromatography. A Britton-Robinson buffer solution has b...
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Article
Determination of Radiochemical Yield of 186Re-Labeled Complexes Using Thin-Layer Chromatography
The reaction conditions for synthesis of three rhenium complexes 186Re-methylendiphosphonate (MDP), 186Re-hydroxyethylidendiphosphonate (HEDP) and 186Re-citrate were investigated. Radiochemical yield of complexat...
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Article
The Complexes of Holmium with Methylenediphosphonate and 1-Hydroxyethylidenephosphonate
The composition and stability of holmium methylenediphosphonate (MDP) and 1-hydroxyethylidenephosphonate (HEDP) complexes were studied by potentiometric titration methods in 0.1M NaCl at 25 °C. It was found th...
