Analysis of Ozonolysis Products of Benzo[A]Pyrene With Capillary Gas Chromatography Mass Spectrometry and Liquid Chromatography Mass Spectrometry

Koeber, Robert; Bayona, Josep M.

doi:10.1080/03067319708028372

Cited by 19 publications

(10 citation statements)

References 22 publications

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“…This compound class is of concern because of their genotoxic effects. The occurrence of B[ a ]P diones in suspended particulate matter has been reported ( − ), but investigations of atmospheric degradation products of B[ a ]P over a longer period with regard to atmospherical conditions have not been made yet.…”

Section: Introductionmentioning

confidence: 99%

Determination of Benzo[a]pyrene Diones in Air Particulate Matter with Liquid Chromatography Mass Spectrometry

Koeber

Bayona

Nießner

1999

Environ. Sci. Technol.

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The formation of the benzo[a]pyrene (B[a]P) diones (B[a]P-1,6-dione, B[a]P-3,6-dione, B[a]P-6,12-dione) as the main products of oxidative degradation of B[a]P has been observed under atmospheric conditions in air particulate matter. Samples were collected at two different sites in Munich, Germany. Total B[a]P dione concentrations were determined by APCI/LC−MS and ranged between 8 and 605 pg m-3. The formation of the direct mutagen B[a]P-epoxide was not observed. B[a]P dione concentrations did not correspond with B[a]P and total carbon concentrations, but showed a correlation with solar irradiation. B[a]P dione concentrations were higher on daytime filters compared to filters collected during the night. Lower concentrations of B[a]P diones were observed at the site with higher traffic contributions, suggesting a major role of atmospheric transport. Rapid, high-volume sampling indicates that the B[a]P dione formation is not dependent on B[a]P concentrations, but on photochemical conditions.

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Section: Introductionmentioning

confidence: 99%

Determination of Benzo[a]pyrene Diones in Air Particulate Matter with Liquid Chromatography Mass Spectrometry

Koeber

Bayona

Nießner

1999

Environ. Sci. Technol.

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“…For example, in the analysis of polar products after ozonolysis of BaP, LC-MS was more sensitive than GC-MS, with detection limits in the picogram range. 108 In a combined LC separation with detection by diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy, approximately 50% of the extractable organic PM in Los Angeles Basin PM 2.5 samples was identified. 109,110 Coupling LC with two-dimensional NMR (NMR) methods and Fourier transform ion cyclotron resonance MS (FT-ICR-MS), Criegee radicals and low-pressure compounds such as pinonic acid, pinic acid, and hydroxypinonic acid were identified in a study of the ozonolysis reaction mechanism of ␣-pinene.…”

Section: Combining With Other Chromatographymentioning

confidence: 99%

Review of Recent Advances in Detection of Organic Markers in Fine Particulate Matter and Their Use for Source Apportionment

Lin

Lee

Eatough

2010

Journal of the Air & Waste Management Association

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Fine particulate matter is believed to be more toxic than coarse particles and to exacerbate health problems such as respiratory and cardiopulmonary diseases. Specific organic compounds within atmospheric fine particulate material can be used to differentiate specific inputs from various emissions and thus is helpful in identifying the major urban air pollution sources that contribute to these health problems. Particular marker compounds that carry signature information about different emission sources (i.e., gasoline or diesel motor vehicles, wood smoke, meat cooking, vegetative detritus, and cigarette smoke) are reviewed. Aerosol organic types (e.g., from mass spectrometry data, which can also help in elucidation of carbonaceous material sources) are also discussed. Apportionment of the primary source contributions and atmospheric processes contributing to fine particulate matter and fine particulate organic material concentrations are outlined. This review provides an overview of the latest developments in chemical characterization approaches for identification and quantification of compounds in complex organic mixtures associated with fine atmospheric particles and their use in chemical mass balance (CMB) and positive matrix factorization (PMF) source apportionment models.

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“…9,10 For such compounds, liquid chromatography is a more versatile separation method which usually requires less sample preparation, and for semipolar substances like oxy-PAHs reversed phase liquid chromatography (RP-LC) is the separation method of choice. In the past LC separations were usually performed using octadecyl modified silica stationary phases, 11,12 but for the more polar derivatives satisfactory resolution could not be achieved. Recently an efficient method for the separation of oxidized benzo[a]pyrene (B[a]P) derivatives has been developed, which is based on the utilization of a phenyl modified stationary phase.…”

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confidence: 99%

In-source fragmentation of partially oxidized mono- and polycyclic aromatic hydrocarbons in atmospheric pressure chemical ionization mass spectrometry coupled to liquid chromatography

Letzel

Pöschl

Rosenberg

et al. 1999

Rapid Commun. Mass Spectrom.

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Partially oxidized derivatives of polycyclic aromatic hydrocarbons (PAHs) are known to be important environmental pollutants. For the identification of these substances in complex mixtures, e.g. atmospheric aerosol samples, liquid chromatography/mass spectrometry with atmospheric pressure chemical ionization (LC/APCI-MS) has been found to be a suitable analytical technique. In this study 31 derivatives of mono- and polycyclic aromatic hydrocarbons with up to five condensed aromatic rings carrying different functional groups (carboxyl, dicarboxylic anhydride, lactone, hydroxyl, and carbonyl) were characterized by LC/APCI-MS. Each substance was measured in positive and negative ion detection mode at four different fragmentor voltages (90 to 190 V). For the first time, the results show that characteristic and well-interpretable fragmentation patterns can be obtained for these classes of compounds by in-source collision-induced dissociation in a single quadrupole LC/APCI-MS system. For each class of compounds typical spectral features and optimum measurement conditions are reported, and fragmentation pathways are proposed. The study demonstrates the applicability of LC/APCI-MS for the determination of most of the investigated compounds at trace levels, and it provides a database for the identification of unknown partially oxidized aromatic hydrocarbons. Copyright 1999 John Wiley & Sons, Ltd.

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Analysis of Ozonolysis Products of Benzo[A]Pyrene With Capillary Gas Chromatography Mass Spectrometry and Liquid Chromatography Mass Spectrometry

Cited by 19 publications

References 22 publications

Determination of Benzo[a]pyrene Diones in Air Particulate Matter with Liquid Chromatography Mass Spectrometry

Determination of Benzo[a]pyrene Diones in Air Particulate Matter with Liquid Chromatography Mass Spectrometry

Review of Recent Advances in Detection of Organic Markers in Fine Particulate Matter and Their Use for Source Apportionment

In-source fragmentation of partially oxidized mono- and polycyclic aromatic hydrocarbons in atmospheric pressure chemical ionization mass spectrometry coupled to liquid chromatography

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