Clean-up of Extracts for Nitrated Derivatives of Polycyclic Aromatic Hydrocarbons Analyses Prior to their Gas Chromatography Determination

PRYČEK, Jiří, Miroslav CIGANEK and Zdeněk ŠIMEK. Clean-up of Extracts for Nitrated Derivatives of Polycyclic Aromatic Hydrocarbons Analyses Prior to their Gas Chromatography Determination. Journal of Brazilian Chemical Society. 2007, vol. 18, No 6, p. 1125-1131. ISSN 0103-5053.

Basic information

• Original name: Clean-up of Extracts for Nitrated Derivatives of Polycyclic Aromatic Hydrocarbons Analyses Prior to their Gas Chromatography Determination
• Name in Czech: Metoda zpracování extraktů nitrovaných derivátů polycyclických aromatických uhlovodíků před jejich stanovením plynovou chromatografií
• Authors: PRYČEK, Jiří (203 Czech Republic), Miroslav CIGANEK (203 Czech Republic) and Zdeněk ŠIMEK (203 Czech Republic, guarantor).
• Edition: Journal of Brazilian Chemical Society, 2007, 0103-5053.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10406 Analytical chemistry
• Country of publisher: Czech Republic
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 1.539
• RIV identification code: RIV/00216224:14310/07:00023782
• Organization unit: Faculty of Science
• UT WoS: 000251216400004
• Keywords in English: silica gel; fractionation; PAHs; nitro-PAHs; soil; roadside dust
• Tags: fractionation, nitro-PAHs, PaHs, roadside dust, Silica gel, soil
• Tags: International impact

Abstract

Este estudo focalizou o fracionamento da mistura de hidrocarbonetos policíclicos aromáticos e seus derivados, especialmente derivados nitrados, encontrados no solo e em extratos de poeira de beira de estrada. Foi utilizada cromatografia líquida com coluna de sílica gel aberta. Diferentes volumes de hexano, hexano:diclorometano (1:1 e 4:1, v/v), diclorometano e metanol foram usados para a eluiçao de fraçoes individuais. O aumento do volume de hexano nao foi suficiente para separar completamente uma pequena fraçoo polar da fraçao aromática. O aumento do conteúdo de hexano na mistura de eluiçao melhorou a separaçao do grupo dos compostos alvos. Extratos de poeira de beira de estrada e do solo foram obtidos pelo uso de um solvente extrator pressurizado com diclorometano como solvente de extraçao. Os limites de detecçao do método variaram de 50 a 220 pg para cada nitro-PAHs, injetado no cromatografo gasoso. Uma quantidade significante de 1-nitropireno foi detectada em amostras reais coletadas próximas ao centro de Brno.

Abstract (in Czech)

This study was focused on the fractionation of the mixture of polycyclic aromatic hydrocarbons and their derivatives, especially nitrated derivatives, found in soil and roadside dust extracts. Liquid chromatography with an open silica gel bed was used. Different volumes of hexane, hexane:dichloromethane (1:1 and 4:1, v/v), dichloromethane and methanol were used for the elution of individual fractions. Increasing volume of hexane was not sufficient for complete separation of a slightly polar fraction from the aromatic fraction. Increasing content of hexane in the elution mixture improved the separation of the group of target compounds. Soil and roadside dust extracts were obtained by using a pressurised solvent extractor with dichloromethane as the extraction solvent. Detection limits of the method ranged from 50 to 220 pg of individual nitro-PAHs injected into gas chromatograph. A significant amount of 1-nitropyrene was detected in the real samples collected close to the Brno centre.

Links

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)