|
|
Toxicity of selected nitramines
Papírek, Jan ; Fojt, Pavel (referee) ; Bednařík, Karel (advisor)
This Bachelor Thesis is focused on determination of toxicity of selected nitramines and nitrosoamines, which had to be synthesized soon. Out of total 10 prepared N-nitro and N- nitrosocompounds 4 were selected for testing their toxicity in test using Duckweed (Lemna Minor). Factor IC50 was determined for two compounds 3,7-dinitro-1,3,5,7-tetraazabicyclo [3.3.1]- nonane (DPT) and 3,7-dinitroso-1,3,5,7-tetraazabyciclo [3.3.1] nonane (DNPT), unfortunately factor for other compounds failed to determine, because conditions of test validity hadn’t been kept. In the end of the thesis is compared toxicity of N-nitro and N-nitrosocompounds based on results and observations.
|
|
|
Biotransformation of nitro aromates
Tomeček, Jaromír ; Bednařík, Karel (referee) ; Friedl, Zdeněk (advisor)
Contamination by nitroaromatic compounds, such as explosives, pesticides or other nitroaromatic compounds, is worldwide environmental problem. This text focuses on contamination by compounds from military and ammunition industry, most especially 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitro-1,3,5-triazinane (RDX) and 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX). First goal of this work is to provide the reader with a aerobic biodegradation and transformation processes of nitroaromatic compounds named above. The second goal is to compare the toxicity of initial nitroaromates and their transformation intermediates.
|
|
|
Modern detection methods of energetic materials
Šesták, Jozef ; Bednařík, Karel (referee) ; Friedl, Zdeněk (advisor)
The review of modern detection methods of explosives was composed. Firstly the thesis deals with the detection methods commonly used in forensics science such as gas chromatography, mass spectrometry, ion mobility spectrometry, Raman spectroscopy and mainly their innovations. Then the thesis is focused on simple but very sensitive methods using fluorescence and chemiluminescence. At the end a methods as the results of a latest research are mentioned. The main of them are micro cantilever sensors and differential reflectometry. Security and counterterrorist warfare is main point of thesis.
|
|
|
Toxicity of selected nitramines
Papírek, Jan ; Fojt, Pavel (referee) ; Bednařík, Karel (advisor)
This Bachelor Thesis is focused on determination of toxicity of selected nitramines and nitrosoamines, which had to be synthesized soon. Out of total 10 prepared N-nitro and N- nitrosocompounds 4 were selected for testing their toxicity in test using Duckweed (Lemna Minor). Factor IC50 was determined for two compounds 3,7-dinitro-1,3,5,7-tetraazabicyclo [3.3.1]- nonane (DPT) and 3,7-dinitroso-1,3,5,7-tetraazabyciclo [3.3.1] nonane (DNPT), unfortunately factor for other compounds failed to determine, because conditions of test validity hadn’t been kept. In the end of the thesis is compared toxicity of N-nitro and N-nitrosocompounds based on results and observations.
|
|
|
Biotransformation of nitro aromates
Tomeček, Jaromír ; Bednařík, Karel (referee) ; Friedl, Zdeněk (advisor)
Contamination by nitroaromatic compounds, such as explosives, pesticides or other nitroaromatic compounds, is worldwide environmental problem. This text focuses on contamination by compounds from military and ammunition industry, most especially 2,4,6-trinitrotoluene (TNT), 1,3,5-trinitro-1,3,5-triazinane (RDX) and 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX). First goal of this work is to provide the reader with a aerobic biodegradation and transformation processes of nitroaromatic compounds named above. The second goal is to compare the toxicity of initial nitroaromates and their transformation intermediates.
|
|
|
Modern detection methods of energetic materials
Šesták, Jozef ; Bednařík, Karel (referee) ; Friedl, Zdeněk (advisor)
The review of modern detection methods of explosives was composed. Firstly the thesis deals with the detection methods commonly used in forensics science such as gas chromatography, mass spectrometry, ion mobility spectrometry, Raman spectroscopy and mainly their innovations. Then the thesis is focused on simple but very sensitive methods using fluorescence and chemiluminescence. At the end a methods as the results of a latest research are mentioned. The main of them are micro cantilever sensors and differential reflectometry. Security and counterterrorist warfare is main point of thesis.
|
guest ::
