Metoda zpracování extraktů nitrovaných derivátů polycyclických aromatických uhlovodíků před jejich stanovením plynovou chromatografií

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00023782" target="_blank" >RIV/00216224:14310/07:00023782 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26310/07:PU69047 RIV/00027162:_____/07:#0000272

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Journal of Brazilian Chemical Society

ISSN

0103-5053

e-ISSN

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Svazek periodika

18

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

1125-1131

Kód UT WoS článku

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EID výsledku v databázi Scopus

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