CVRČKOVÁ, Olga, Miroslav CIGANEK, Jana BLATOVÁ and Zdeněk ŠIMEK. Photodegradation of Polycyclic Aromatic Hydrocarbons and Nitrated Polycyclic Aromatic Hydrocarbons in Dichlormethane and Isooctane Solution. In SACH Conference. Analytical Chemistry of Organic Contaminants in the Enwironment. Zurich, Switzerland: SACH Conference. Analytical Chemistry of Organic Contaminants in the Enwironment, 2003, p. 45-45.
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Basic information
Original name Photodegradation of Polycyclic Aromatic Hydrocarbons and Nitrated Polycyclic Aromatic Hydrocarbons in Dichlormethane and Isooctane Solution
Name in Czech Fotodegradace PAH a nitrovaných PAH
Authors CVRČKOVÁ, Olga (203 Czech Republic), Miroslav CIGANEK (203 Czech Republic), Jana BLATOVÁ (203 Czech Republic) and Zdeněk ŠIMEK (203 Czech Republic, guarantor).
Edition Zurich, Switzerland, SACH Conference. Analytical Chemistry of Organic Contaminants in the Enwironment, p. 45-45, 1 pp. 2003.
Publisher SACH Conference. Analytical Chemistry of Organic Contaminants in the Enwironment
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10406 Analytical chemistry
Country of publisher Switzerland
Confidentiality degree is not subject to a state or trade secret
Organization unit Faculty of Science
Keywords in English Photodegradation; Polycyclic Aromatic Hydrocarbons; Nitrated Polycyclic Aromatic Hydrocarbons;
Tags Nitrated Polycyclic Aromatic Hydrocarbons, Photodegradation, Polycyclic Aromatic Hydrocarbons
Changed by Changed by: doc. RNDr. Zdeněk Šimek, CSc., učo 37019. Changed: 31/1/2006 16:00.
Abstract
Photodegradation of two PAHs (anthracene and chrysene), two NPAHs (9-nitroanthracene, and 6-nitrochrysene) and seven MePAHs (1-methylchrysene, 2-methylchrysene, 3-methylchrysene, 4-methylchrysene 5-methylchrysene, 6-methylchrysene, 1-methylantracene, -methylantracene, 9-methylantracene) was studied in isooctane solutions exposed to the UV radiation from light simulator. Samples were placed in closed glass vials. PAHs and NPAHs were divided into three groups according to their life times. Degradation of all PAHs and NPAHs was faster in dichloromethane compared with isooctane. Decomposition of NPAHs was easier than degradation of corresponding parent PAHs. The most frequent photoproducts were quinone, benzoic acid and derivatives with hydroxyl, carbonyl and carboxyl groups for both PAHs and NPAHs. Chlorinated compounds were identified in dichloromethane. Degradation intermediates underwent further oxidation, fragmentation, reduction or radical chlorine addition in dichloromethane. Final degradation products of all PAHs were n-alcanes. Based on GC-MS data the mechanism of photoproducts formation was proposed.
Links
GA525/03/0367, research and development projectName: Ekotoxikologie persistentních organických polutantů životního prostředí
Investor: Czech Science Foundation, Ecotoxicology of persistent organic environmental pollutants
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