All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Photostability of polycyclic aromatic hydrocarbons (PAHs) and nitrated polycyclic aromatic hydrocarbons (NPHs) in dichloromethane and isooctane solutions

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027162%3A_____%2F05%3A06000006" target="_blank" >RIV/00027162:_____/05:06000006 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Photostability of polycyclic aromatic hydrocarbons (PAHs) and nitrated polycyclic aromatic hydrocarbons (NPHs) in dichloromethane and isooctane solutions

  • Original language description

    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.

  • Czech name

    Fotostabilita polycyklických aromatických uhlovodíků (PAU) a nitrovaných polycyklických aromatických uhlovodíků (NPAU) v roztoku dichlormetanu a isooktanu

  • Czech 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.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CB - Analytical chemistry, separation

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Polycyclic Aromatic Compounds

  • ISSN

    1040-6638

  • e-ISSN

  • Volume of the periodical

    25

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    15

  • Pages from-to

    141-156

  • UT code for WoS article

  • EID of the result in the Scopus database