Gas Chromatography/mass Spectrometry Detection of Polycyclic Aromatic Hydrocarbon Metabolites in Fish and Its Applications in Environmental Studies PDF Download
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Author: Yanhui Yu
Publisher:
ISBN:
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 428
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Book Description
Author: Yanhui Yu
Publisher:
ISBN:
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 428
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Book Description
Author: Mary C. Olson
Publisher:
ISBN:
Category : Contaminated sediments
Languages : en
Pages : 62
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Book Description
Author:
Publisher:
ISBN:
Category : Polycyclic aromatic hydrocarbons
Languages : en
Pages : 500
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Book Description
Author: Daniela M. Pampanin
Publisher: Bentham Science Publishers
ISBN: 1681084279
Category : Science
Languages : en
Pages : 245
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Book Description
Although a lot is known about the influence of Polycyclic Aromatic Hydrocarbons (PAHs) on the marine environment, there are still many unanswered questions. Petrogenic Polycyclic Aromatic Hydrocarbons in the Aquatic Environment is a monograph that sums up basic knowledge about this topic while highlighting current research practices useful in studying the aquatic environment. It starts with an introduction to effect of PAH in the marine environment. It then proceeds to provide information on techniques to monitor PAH levels and investigate the affected environment in order to control the subsequent negative effects. Chapters also detail the carcinogenic and endocrine effects of PAHs on fish as well as the degradation of PAHs by microorganisms. This monograph is a useful reference for environmental science students and professionals learning about the role of PAH in the marine environment.
Author: Wisam Abdulabbas Flayyih Al-Isawi
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Book Description
Gas chromatography-mass spectrometry (GC-MS) and liquid chromatography mass spectrometry (LC-MS) are powerful analytical techniques that combine the separation power in a stationary phase with the detection power of mass spectrometry. GCMS and LC-MS have gained dominant positions in identifying and quantifying different analyte species due to their high selectivity, high sensitivity, and high reproducibility. My research utilizes the analytical power of LC-MS and GC-MS to address two environmental issues: 1) Identification of biodegradation products of the ionic liquid 1- butyl-3-methylimidazolium chloride (BMIMCl) by an activated sludge microbial community using LC-MS and 2) identification and quantification of polycyclic aromatic hydrocarbons (PAHs) in the Kalamazoo River oil spill using GC-MS. Three major metabolites from BMIMCl biodegradation were identified, and their structures were confirmed using MS/MS and 1H-NMR techniques. Many PAHs were identified, and their concentrations were quantified in the Kalamazoo River oil spill area using GC-MS.
Author:
Publisher:
ISBN:
Category : Biological assay
Languages : en
Pages : 54
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Book Description
Author: Mario J. Mena (Jr)
Publisher:
ISBN: 9780438071346
Category : Chemistry, Analytic
Languages : en
Pages : 65
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Book Description
Particular matter (PM, e.g. soot, dust etc.) of a certain size is known to be hazardous to human health. These particles are small enough to travel through our respiratory system and induce respiratory illness by introducing foreign bodies and toxic chemicals to our systems. For instance, benzo(a)pyrene (BaP), is an example of a polycyclic aromatic hydrocarbon (PAH) frequently found in or on PM known to have carcinogenic and mutagenic effects. Polycyclic aromatic hydrocarbons are by-products of incomplete combustion such as vehicle emissions. Thus, when PM are airborne, they can interact with semi-volatile molecules such as PAH. In turn, the newly coupled system may penetrate our respiratory system. In addition to PAH, nitro polycyclic aromatic hydrocarbons (NPAHs, i.e. 1-nitro-pyrene) are being recognized by the International Agency for Research on Cancer as a Group 2a compound (probably carcinogenic to humans). This study aims to identify chemical signatures of forest fire and automobile emissions using ratios of PAH and its oxidants, including nitro-PAH, in a variety of media (e.g. soil, soot, PM). Nitro-PAH (NPAHs) are usually found in/on course/fine particular matter at concentrations on the order of 2ng/mL to 200ng/mL (Heidelore et al. 1991, Eiguren-Fernandez et al 2004). Therefore, a very sensitive technique is needed to detect NPAHs in various matrices representative of those found in the environment. This study will use the following PAH ratios to differentiate sources of incomplete combustion: B[a]P to (B[a]P+chrysene; pyrene to B[a]P; fluoranthrene to pyrene; and fluoranthrene to (fluoranthrene+pyrene). As for the NPAH:PAH ratios, the following will be used: 1-nitro-pyrene to pyrene; 6-nitro-chyresene to chrysene; and 6-nitro-benzo[a]pyrene to benzo[a]pyrene. Extractions of PAH will be performed using the accelerated solvent extraction technique. Gas chromatography-mass spectroscopy will be used to identify and quantify analytes. The results of this study may be used to inform citizens, city planners and lawmakers about the impacts of high-traffic events on human health.
Author: Jari Tuominen
Publisher:
ISBN: 9789513835668
Category : Chromatographic analysis
Languages : en
Pages : 77
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Book Description
Author: Ronald Eisler
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 94
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Book Description
Author:
Publisher: ScholarlyEditions
ISBN: 1464926573
Category : Science
Languages : en
Pages : 156
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Book Description
Cyclic Hydrocarbons: Advances in Research and Application: 2011 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about Cyclic Hydrocarbons in a concise format. The editors have built Cyclic Hydrocarbons: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Cyclic Hydrocarbons in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Cyclic Hydrocarbons: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
