Počet záznamov: 1
Application of Progresive Laboratory Methods for Determination of Fire Accelerators
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$a Application of Progresive Laboratory Methods for Determination of Fire Accelerators $b elektronický zdroj $f Marek Hodálik $g školiteľ Danica Kačíková 210 $a Zvolen $d 2023 301 $a DF-183776-20137 328 $a Doktorandská dizertačná práca, DF KPO TU Zvolen 330 $a The doctoral thesis deals with the issue of weathering and determination of fire accelerators in samples. The main goal of the doctoral thesis is to design and verify a progressive forensic method of sample processing to determine fire accelerants in fire investigation. One of the sub-goals of the work is to determine changes in the composition of selected gasoline residues. Model samples of matrices of cotton carpet and ignitable liquid - gasoline (fire accelerator) representing samples obtained from the fire scene under different processing conditions (primarily temperature and time) were examined. Gasoline EVO 95 Slovnaft was used as a fire accelerator, and cotton carpet ARYA 05 BEIGE/BLUE as a matrix. In laboratory conditions, the samples were exposed to different weathering intervals (0 minutes - 240 hours). Three variants of the experiments were performed: unburned samples poured with gasoline (USL), burned samples with the presence of gasoline (BSL), and burned samples with gasoline extinguished with water (ESL). Residual gasoline compounds in carpet samples were determined by gas phase extraction (HS) coupled with gas chromatography (GC) and mass spectrometry (MS). In the research, the following selected gasoline compounds were closely compared: toluene, ethylbenzene, p-xylene, 1,2,3-trimethylbenzene, 1,3,5-trimethylbenzene, and naphthalene. The most significant changes were determined in reducing the intensity of most volatile compounds (alkyl alkanes), where toluene decreased by 11.92% in the unburned USL sample. A similar but less pronounced trend occurred in the burned BSL samples, where toluene decreased by 7.40%. More minor changes occurred in alkyl derivatives of benzene, which include most of the 15 gasoline markers, e.g. (1,2,3-trimethylbenzene, 1,3,5-trimethylbenzene). Conversely, the heavier compound, naphthalene showed an increase in the intensity of 0.42%. In the case of burned samples, the increase was 1.31%. The most significant changes can be 336 $a Elektronický zdroj. 517 1-
$a Aplikácia progresívnej laboratórnej metódy na zisťovanie urýchľovačov horenia 608 $3 sldk_un_auth*h005061 $a dizertácie $X dissertations 610 1-
$9 sldk_un_auth*h029234 $a zvetrávanie $X weathering 610 1-
$9 sldk_un_auth*0050231 $a benzín $X gasoline 610 1-
$9 sldk_un_auth*0047380 $a metóda HS-GC-MS $X HS-GC-MS method $X HS-GC-MS 610 1-
$9 sldk_un_auth*0034544 $a vyšetrovanie požiarov $X investigation of fires 610 1-
$9 sldk_un_auth*0030884 $a urýchľovače horenia $X accelerators of combustion 610 1-
$9 sldk_un_auth*h019295 $a odber vzoriek $X sampling 610 1-
$9 sldk_un_auth*h036342 $a príčiny požiarov $X fire causes 675 $a (043.3) $v 2.stred $z slo 675 $a 551.3.053 $v 2. stred 675 $a 665.73 $v 2.stred $z slo 675 $a 544.452 $v 2.stred $z slo 675 $a 543.05 $v 2. stred $z slo 675 $a 57.082.1 $v 2. stred $z slo 675 $a 620.11 $v 2. stred $z slo 675 $a 550.85 $v 2. stred $z slo 675 $a 616-072.5 $v 2. stred $z slo 675 $a 614.841.2 $v 1. stred. $z slo 700 -1
$3 sldk_un_auth*0049689 $a Hodálik $b Marek $f 1997- $4 070 $p TUZDFPO $T Katedra protipožiarnej ochrany 702 -1
$3 sldk_un_auth*p0015986 $a Kačíková $b Danica $f 1964- $4 727 $p TUZDFPO $T Katedra protipožiarnej ochrany 801 -0
$a SK $b ZV001 $c 20230919 $g AACR2 856 4-
$u https://opac.crzp.sk/?fn=detailBiblioForm&sid=EC7951772ACC837B5F7EC1A56A1E
Počet záznamov: 1