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Statements

Subject Item
n2:RIV%2F00027162%3A_____%2F05%3A06000006%21RIV06-MZE-00027162
rdf:type
skos:Concept n13:Vysledek
dcterms:description
V roztoku isooktanu a dichlormetanu byla studována kinetika foto-degradace osmi PAU (naftanen, antracen, fenantren, pyren, bifenyl, chrysen benz[a]antracen a tetracen) a pěti NPAU (1-nitronaftalen, 2-nitrofluoren, 9-nitroantracen, 1-nitropyren a6-nitrochrysen), které byly umístěny v laboratoři a v boxu s osvětlením. Podle poločasu rozkladu byly PAU a NPAU rozděleny do tří skupin. Degradace testovaných sloučenin byla rychlejší v dichlormetanu než v isooktanu. Rozklad NPAU byl snadnější vporovnání s původními PAU. Nejčastějšími produkty rozkladu byly chinony, kyselina benzoová a další deriváty PAU a NPAU s hydroxyl, karbonyl a karboxyl skupinami. V dichlormetanu byly identifikovány chlorované deriváty testovaných sloučenin. Bylozjištěno, že degradační meziprodukty podléhají další oxidaci, fragmentaci, redukci nebo radikálové adici chloru. Kinetics of photodegradation of eight PAHs (naphthalene, anthracene, phenanthrene, pyrene, biphenyl, chrysene, benz[a]anthracene and tetracene) and five NPAHs (1-nitronaphthalene, 2 nitrofluorene, 9-nitroanthracene, 1-nitropyrene a 6-nitrochrysene) wasstudied in isooctane and dichloromethane solutions standing in a laboratory and in a light simulator. PAHs and NPAHs were divided into three groups according to their life times. Degradation of tested compounds was faster in dichloromethane compared withisooctane. Decomposition of NPAHs was easier than degradation of corresponding parent PAHs. The most frequent photoproducts were quinones, benzoic acid and other derivatives with hydroxyl, carbonyl and carboxyl groups for both PAHs and NPAHs. Chlorinatedderivatives of tested compounds were identified in dichloromethane. Degradation intermediates underwent in further oxidation, fragmentation, reduction or radical chlorine addition. Kinetics of photodegradation of eight PAHs (naphthalene, anthracene, phenanthrene, pyrene, biphenyl, chrysene, benz[a]anthracene and tetracene) and five NPAHs (1-nitronaphthalene, 2 nitrofluorene, 9-nitroanthracene, 1-nitropyrene a 6-nitrochrysene) wasstudied in isooctane and dichloromethane solutions standing in a laboratory and in a light simulator. PAHs and NPAHs were divided into three groups according to their life times. Degradation of tested compounds was faster in dichloromethane compared withisooctane. Decomposition of NPAHs was easier than degradation of corresponding parent PAHs. The most frequent photoproducts were quinones, benzoic acid and other derivatives with hydroxyl, carbonyl and carboxyl groups for both PAHs and NPAHs. Chlorinatedderivatives of tested compounds were identified in dichloromethane. Degradation intermediates underwent in further oxidation, fragmentation, reduction or radical chlorine addition.
dcterms:title
Photostability of polycyclic aromatic hydrocarbons (PAHs) and nitrated polycyclic aromatic hydrocarbons (NPHs) in dichloromethane and isooctane solutions Photostability of polycyclic aromatic hydrocarbons (PAHs) and nitrated polycyclic aromatic hydrocarbons (NPHs) in dichloromethane and isooctane solutions Fotostabilita polycyklických aromatických uhlovodíků (PAU) a nitrovaných polycyklických aromatických uhlovodíků (NPAU) v roztoku dichlormetanu a isooktanu
skos:prefLabel
Photostability of polycyclic aromatic hydrocarbons (PAHs) and nitrated polycyclic aromatic hydrocarbons (NPHs) in dichloromethane and isooctane solutions Photostability of polycyclic aromatic hydrocarbons (PAHs) and nitrated polycyclic aromatic hydrocarbons (NPHs) in dichloromethane and isooctane solutions Fotostabilita polycyklických aromatických uhlovodíků (PAU) a nitrovaných polycyklických aromatických uhlovodíků (NPAU) v roztoku dichlormetanu a isooktanu
skos:notation
RIV/00027162:_____/05:06000006!RIV06-MZE-00027162
n3:strany
141;156
n3:aktivita
n14:Z
n3:aktivity
Z(MZE0002716201)
n3:cisloPeriodika
2
n3:dodaniDat
n12:2006
n3:domaciTvurceVysledku
n15:9928359
n3:druhVysledku
n8:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
535961
n3:idVysledku
RIV/00027162:_____/05:06000006
n3:jazykVysledku
n17:eng
n3:klicovaSlova
photostability; photodegradation; polycyclic aromatic hydrocarbons; nitrated polycyclic aromatic hydrocarbons; dichloromethane; isooctane
n3:klicoveSlovo
n6:isooctane n6:dichloromethane n6:photostability n6:nitrated%20polycyclic%20aromatic%20hydrocarbons n6:photodegradation n6:polycyclic%20aromatic%20hydrocarbons
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[7F38331C70C0]
n3:nazevZdroje
Polycyclic Aromatic Compounds
n3:obor
n11:CB
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n12:2005
n3:svazekPeriodika
25
n3:tvurceVysledku
Ciganek, Miroslav
n3:zamer
n7:MZE0002716201
s:issn
1040-6638
s:numberOfPages
15