Comprehensive database of Manufactured Gas Plant tars. Part A. Database

Gallacher, Christopher; Thomas, Russell S.; Lord, Richard; Kalin, Robert M.; Taylor, Chris

doi:10.1002/rcm.7901

Cited by 9 publications

(6 citation statements)

References 13 publications

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“…This study presents the in‐depth analysis of the aliphatic and aromatic content of 16 tar samples produced by five different production processes. A full database of the compounds found within the samples has been published in Gallacher et al…”

Section: Introductionmentioning

confidence: 99%

Comprehensive database of Manufactured Gas Plant tars. Part B. Aliphatic and aromatic compounds

Gallacher

Thomas²,

Lord

et al. 2017

Rapid Commun Mass Spectrom

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The aromatic compositions of the tar samples varied greatly between the different production processes investigated and useful analytical information was obtained about the individual production process groups. Alkyl cyclohexanes were detected in all samples from sites known to operate Carbureted Water Gas plants and not detected in those that did not. This suggests that petrogenic material may be expected at many UK gaswork sites.

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Section: Introductionmentioning

confidence: 99%

Comprehensive database of Manufactured Gas Plant tars. Part B. Aliphatic and aromatic compounds

Gallacher

Thomas²,

Lord

et al. 2017

Rapid Commun Mass Spectrom

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“…Comprehensive two-dimensional gas chromatography coupled to mass spectrometry (GC × GC/MS) is a nontargeted analytical technique that offers unparalleled chromatographic resolution and peak capacity. − Novel GC×GC column combinations have been explored to aid in the speciation of (heterocyclic) PACs from sample matrix components. , Profiles generated by GC × GC/MS, sometimes referred to as a “chemical fingerprint”, have proven to be vital for source identification , and environmental forensics investigations. , GC × GC/MS has been successfully employed for the characterization of PACs (PAHs, alkyl-PAHs, and heteroatomic PACs) in coal tar and coal tar-derived samples. ,− Gallacher et al present a prime example, where they identified 1505 PACs in creosote, including several PASHs and PANHs.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Polycyclic Aromatic Compounds in Commercial Pavement Sealcoat Products for Enhanced Source Apportionment

Bowman

Jobst

Helm

et al. 2019

Environ. Sci. Technol.

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Coal tar-based sealcoat (CTSC) products are an urban source of polycyclic aromatic compounds (PACs) to the environment. However, efforts to assess the environmental fate and impacts of CTSC-derived PACs are hindered by the ubiquity of (routinely monitored) PACs released from other environmental sources. To advance source identification of CTSC-derived PACs, we use comprehensive two-dimensional gas chromatography-high resolution mass spectrometry (GC × GC/HRMS) to characterize the major and minor components of CTSC products in comparison to those in other sources of PACs, viz., asphalt-based sealcoat products, diesel particulate, diesel fuel, used motor oil and roofing shingles. GC × GC/HRMS analyses of CTSC products led to the confident assignment of compounds with 88 unique elemental compositions, which includes a set of 240 individual PACs. Visualization of the resulting profiles using Kendrick mass defect plots and hierarchical cluster analysis highlighted compositional differences between the sources. Profiles of alkylated PAHs, and heteroatomic (N, O, S) PACs enabled greater specificity in source differentiation. Isomers of specific polycyclic aromatic nitrogen heterocycles (PANHs) were diagnostic for coal tar-derived PAC sources. The compounds identified and methods used for this identification are anticipated to aid in future efforts on risk assessment and source apportionment of PACs in environmental matrices.

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“…This study presents an in‐depth analysis of the heterocyclic and hydroxylated content of 16 tar samples produced by five different production processes. A full database of the compounds found in the samples has been published and an in‐depth analysis of the aliphatic and aromatic content can be found in Gallacher et al…”

Section: Introductionmentioning

confidence: 99%

Comprehensive database of Manufactured Gas Plant tars. Part C. Heterocyclic and hydroxylated polycyclic aromatic hydrocarbons

Gallacher

Thomas²,

Lord

et al. 2017

Rapid Commun Mass Spectrom

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Coal tars produced using different production processes and feedstocks yielded tars with significantly different heterocyclic and hydroxylated contents. The concentrations of the individual heterocyclic compounds varied greatly even within the different production processes and provided information about the feedstock used to produce the tars. The hydroxylated PAH content of the samples provided important analytical information that would otherwise not have been obtained without the use of derivatization and GCxGC/TOFMS.

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Comprehensive database of Manufactured Gas Plant tars. Part A. Database

Cited by 9 publications

References 13 publications

Comprehensive database of Manufactured Gas Plant tars. Part B. Aliphatic and aromatic compounds

Comprehensive database of Manufactured Gas Plant tars. Part B. Aliphatic and aromatic compounds

Characterization of Polycyclic Aromatic Compounds in Commercial Pavement Sealcoat Products for Enhanced Source Apportionment

Comprehensive database of Manufactured Gas Plant tars. Part C. Heterocyclic and hydroxylated polycyclic aromatic hydrocarbons

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