Comparison of four methods for the determination of polycyclic aromatic hydrocarbons in airborne particulates

Escrivá, C.; Viana, E.; Moltó, J.C.; Picó, Yolanda; Mañes, Jordi

doi:10.1016/0021-9673(94)80438-9

Cited by 27 publications

(12 citation statements)

References 17 publications

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“…57 Por exemplo, na determinação de HPA e quinonas em cinzas o uso de Soxhlet foi mais eficiente do que a sonicação, 58 enquanto que, quando a matriz é MPA, a sonicação é mais eficaz. 59 Quando comprovadamente não ocorre a decomposição do analito, o uso de ultrassom apresenta vantagens tais como reprodutibilidade, utilização de uma ampla faixa de tamanho de amostra, baixo consumo de energia, reduzido uso de solventes e rapidez no processamento da amostra. 1 Outra técnica que pode ser utilizada é a extração acelerada por solvente (ASE) que foi desenvolvida para o isolamento de HPA.…”

Section: Extração De Quinonasunclassified

Sources, Formation, Reactivity and Determination of Quinones in the Atmosphere

2016

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Section: Extração De Quinonasunclassified

Sources, Formation, Reactivity and Determination of Quinones in the Atmosphere

2016

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“…Glass beads were covered with small portions of extract solution (6 mg of extract dissolved in CH2C12) and a stream of nitrogen was bubbled through the beads so that no material eluted through the bottom of the bead bed [4][5]. The prepared bed was put into an empty column and coupled to the previously moistened SPE-CN column and then both were eluted with n-hexane.…”

Section: Procedures C: Spe-cn and Spe-sioh (Figure Lc)mentioning

confidence: 99%

Clean-up methods for polycyclic aromatic hydrocarbons analyses by capillary gas chromatography

Luks-Betlej

1997

Chromatographia

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SummaryComparative results of pre-treatment methods for the extracts of polycyclic aromatic hydrocarbons (PAHs) from airborne particulate matter for quantitative determination by gas chromatography (GC) are presented. The first method included liquid-liquid extraction and column liquid adsorption chromatography. In the second procedure the extract was ffactionated by liquidliquid chromatography and liquid adsorption chromatography. In the last procedure two different solid phase extraction (SPE) cartridges were applied. Each of the pre-treatment procedures examined makes it possible to separate PAHs and remove paraffinic compounds which is very important for the quantitative GC analysis of the PAHs. Recoveries of PAH standards and some their derivatives were determined and the contents of 15 of the most important PAHs, were compared.

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“…7,8,9 Analytical techniques used for PAHs determination are both gas and liquid chromatography with different detection systems. 10,11 The official method 8 employs gas chromatography with flame ionization detector (FID) and for the absence of selectivity and sensitivity in this detection system prior to analysis an intermediate clean-up step by thin layer chromatography is required. A mass spectrometer operating in selected ions monitoring (MS-SIM) improves selectivity and sensitivity, but it is not selective for isomers with identical mass spectra.…”

Section: Introductionmentioning

confidence: 99%

“…The first concerns PAHs recovery evaluation from particulate sample on filter. This evaluation does not require spiked filters 10,12 and is based on the recovery trend obtained from sample subsequent extractions. The second improvement comes from using FLD on line spectra detector.…”

Section: Introductionmentioning

confidence: 99%

Improved Analysis of Polycyclic Aromatic Hydrocarbons in Atmospheric Particulate Matter by HPLC—Fluorescence

et al. 2004

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An improved method is reported for determination of Polycyclic Aromatic Hydrocarbons (PAHs) in atmospheric particulate matter by HPLC-FLD. The sampling step (air volume collected during each sampling period varies in the range 10/13 m3) is carried out by means of a medium-flow pumping system (15 L min(-1)) on a glass fiber filter (47 mm diameter) placed as collecting substrate in the sampling-cassette. After sampling, the filter is extracted with 3 ml of acetonitrile in an ultrasonic bath for 30 minutes. As for extraction of PAHs from loaded filters a new criterion here is proposed to evaluate the recovery efficiency of PAHs from the sample, instead of the usual spiking method of standard solution. The extract was then reduced to 100 microL and analysed by HPLC-FLD on line spectra system. The method is rapid (about one hour for extraction and analysis), reproducible and enables to measure with good accuracy the atmospheric concentration of benzo(b)fluoranthene (BbF), benzo(k)fluoranthene (BkF), benzo(a)pyrene (BaP), benzo(ghi)perylene (BghiP), carcinogenic compounds always present in the urban airborne particulate matter. So it is useful for routine pollution studies and suitable to substitute the official method used now. Monthly average air concentrations, for the four PAHs above mentioned, measured in Rome from July 2001 to June 2002, are reported.

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Comparison of four methods for the determination of polycyclic aromatic hydrocarbons in airborne particulates

Cited by 27 publications

References 17 publications

Sources, Formation, Reactivity and Determination of Quinones in the Atmosphere

Sources, Formation, Reactivity and Determination of Quinones in the Atmosphere

Clean-up methods for polycyclic aromatic hydrocarbons analyses by capillary gas chromatography

Improved Analysis of Polycyclic Aromatic Hydrocarbons in Atmospheric Particulate Matter by HPLC—Fluorescence

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