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Cordova AC, Dodds JN, Tsai HHD, Lloyd DT, Roman-Hubers AT, Wright FA, Chiu WA, McDonald TJ, Zhu R, Newman G, Rusyn I. Application of Ion Mobility Spectrometry-Mass Spectrometry for Compositional Characterization and Fingerprinting of a Library of Diverse Crude Oil Samples. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:2336-2349. [PMID: 37530422 PMCID: PMC10592202 DOI: 10.1002/etc.5727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/16/2023] [Accepted: 07/29/2023] [Indexed: 08/03/2023]
Abstract
Exposure characterization of crude oils, especially in time-sensitive circumstances such as spills and disasters, is a well-known analytical chemistry challenge. Gas chromatography-mass spectrometry is commonly used for "fingerprinting" and origin tracing in oil spills; however, this method is both time-consuming and lacks the resolving power to separate co-eluting compounds. Recent advances in methodologies to analyze petroleum substances using high-resolution analytical techniques have demonstrated both improved resolving power and higher throughput. One such method, ion mobility spectrometry-mass spectrometry (IMS-MS), is especially promising because it is both rapid and high-throughput, with the ability to discern among highly homologous hydrocarbon molecules. Previous applications of IMS-MS to crude oil analyses included a limited number of samples and did not provide detailed characterization of chemical constituents. We analyzed a diverse library of 195 crude oil samples using IMS-MS and applied a computational workflow to assign molecular formulas to individual features. The oils were from 12 groups based on geographical and geological origins: non-US (1 group), US onshore (3), and US Gulf of Mexico offshore (8). We hypothesized that information acquired through IMS-MS data would provide a more confident grouping and yield additional fingerprint information. Chemical composition data from IMS-MS was used for unsupervised hierarchical clustering, as well as machine learning-based supervised analysis to predict geographic and source rock categories for each sample; the latter also yielded several novel prospective biomarkers for fingerprinting of crude oils. We found that IMS-MS data have complementary advantages for fingerprinting and characterization of diverse crude oils and that proposed polycyclic aromatic hydrocarbon biomarkers can be used for rapid exposure characterization. Environ Toxicol Chem 2023;42:2336-2349. © 2023 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Alexandra C. Cordova
- Interdisciplinary Faculty of Toxicology, Texas A&M University, College Station, TX 77843, United States
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX 77843, United States
| | - James N. Dodds
- Department of Chemistry, UNC Chapel Hill, Chapel Hill, NC 27514, United States
| | - Han-Hsuan D. Tsai
- Interdisciplinary Faculty of Toxicology, Texas A&M University, College Station, TX 77843, United States
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX 77843, United States
| | - Dillon T. Lloyd
- Departments of Statistics, Biological Sciences, and Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, United States
| | - Alina T. Roman-Hubers
- Interdisciplinary Faculty of Toxicology, Texas A&M University, College Station, TX 77843, United States
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX 77843, United States
| | - Fred A. Wright
- Departments of Statistics, Biological Sciences, and Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27695, United States
| | - Weihsueh A. Chiu
- Interdisciplinary Faculty of Toxicology, Texas A&M University, College Station, TX 77843, United States
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX 77843, United States
| | - Thomas J. McDonald
- Interdisciplinary Faculty of Toxicology, Texas A&M University, College Station, TX 77843, United States
- Department of Environmental and Occupational Health, Texas A&M University, College Station, TX 77843, United States
| | - Rui Zhu
- Department of Landscape Architecture and Urban Planning, Texas A&M University, College Station TX 77843, United States
| | - Galen Newman
- Department of Landscape Architecture and Urban Planning, Texas A&M University, College Station TX 77843, United States
| | - Ivan Rusyn
- Interdisciplinary Faculty of Toxicology, Texas A&M University, College Station, TX 77843, United States
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, TX 77843, United States
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Santana AM, Comas A, Mohammad-Pour GS, Uribe-Romo FJ, Campiglia AD. Chromatographic and spectroscopic analysis of Dibenzo[b,l]Fluoranthene and its determination in SRM 1597a by laser-excited time-resolved Shpol'skii spectroscopy. Anal Chim Acta 2023; 1279:341835. [PMID: 37827650 DOI: 10.1016/j.aca.2023.341835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/07/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023]
Abstract
BACKGROUND Polycyclic aromatic hydrocarbons (PAHs) with molecular mass 302 Da are the most investigated PAHs within the high molecular weight PAHs class. This PAH class contributes to a significant portion of the mutagenic and/or carcinogenic response associated to the PAH fraction present in environmental and combustion-related samples. Several reasons prevent the routine analysis of 302 Da PAHs in environmental samples, including large number of possible isomers, limited number of commercially available reference standards, and low concentration levels. RESULTS These studies search for a newly synthetized dibenzo-fluoranthene of molecular mass 302 Da, namely dibenzo[b,l]fluoranthene, in a standard reference material (SRM 1597a) from the National Institute of Standards and Technology. The eluting behavior of dibenzo[b,l]fluoranthene is investigated under reversed-phase liquid chromatographic conditions for its determination via absorption and fluorescence detection. Vibrationally resolved spectra and fluorescence lifetimes recorded from octane matrices at 77 K and 4.2 K allow for its qualitative and quantitative analysis at the parts-per-trillion concentration levels. Its unambiguous determination is then reported for the first time in the SRM 1597a. SIGNIFICANCE AND NOVELTY Of the 89 possible 302 Da PAH isomers, only 23 isomers have been identified in SRMs and/or environmental samples. The determination of dibenzo[b,l]fluoranthene in the SRM 1597a takes a step forward to fulfilling this gap.
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Affiliation(s)
- Anthony M Santana
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, Fl, 32816-8005, United States
| | - Ahmed Comas
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, Fl, 32816-8005, United States
| | - Gavin S Mohammad-Pour
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, Fl, 32816-8005, United States
| | - Fernando J Uribe-Romo
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, Fl, 32816-8005, United States
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, Fl, 32816-8005, United States.
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Cordova AC, Klaren WD, Ford LC, Grimm FA, Baker ES, Zhou YH, Wright FA, Rusyn I. Integrative Chemical-Biological Grouping of Complex High Production Volume Substances from Lower Olefin Manufacturing Streams. TOXICS 2023; 11:586. [PMID: 37505552 PMCID: PMC10385386 DOI: 10.3390/toxics11070586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/24/2023] [Accepted: 07/03/2023] [Indexed: 07/29/2023]
Abstract
Human cell-based test methods can be used to evaluate potential hazards of mixtures and products of petroleum refining ("unknown or variable composition, complex reaction products, or biological materials" substances, UVCBs). Analyses of bioactivity and detailed chemical characterization of petroleum UVCBs were used separately for grouping these substances; a combination of the approaches has not been undertaken. Therefore, we used a case example of representative high production volume categories of petroleum UVCBs, 25 lower olefin substances from low benzene naphtha and resin oils categories, to determine whether existing manufacturing-based category grouping can be supported. We collected two types of data: nontarget ion mobility spectrometry-mass spectrometry of both neat substances and their organic extracts and in vitro bioactivity of the organic extracts in five human cell types: umbilical vein endothelial cells and induced pluripotent stem cell-derived hepatocytes, endothelial cells, neurons, and cardiomyocytes. We found that while similarity in composition and bioactivity can be observed for some substances, existing categories are largely heterogeneous. Strong relationships between composition and bioactivity were observed, and individual constituents that determine these associations were identified. Overall, this study showed a promising approach that combines chemical composition and bioactivity data to better characterize the variability within manufacturing categories of petroleum UVCBs.
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Affiliation(s)
- Alexandra C Cordova
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - William D Klaren
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Lucie C Ford
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Fabian A Grimm
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
| | - Erin S Baker
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yi-Hui Zhou
- Departments of Statistics and Biological Sciences and Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27606, USA
| | - Fred A Wright
- Departments of Statistics and Biological Sciences and Bioinformatics Research Center, North Carolina State University, Raleigh, NC 27606, USA
| | - Ivan Rusyn
- Interdisciplinary Faculty of Toxicology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA
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Dettman HD, Wade TL, French-McCay DP, Bejarano AC, Hollebone BP, Faksness LG, Mirnaghi FS, Yang Z, Loughery J, Pretorius T, de Jourdan B. Recommendations for the advancement of oil-in-water media and source oil characterization in aquatic toxicity test studies. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 261:106582. [PMID: 37369158 DOI: 10.1016/j.aquatox.2023.106582] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 04/01/2023] [Accepted: 04/03/2023] [Indexed: 06/29/2023]
Abstract
During toxicity testing, chemical analyses of oil and exposure media samples are needed to allow comparison of results between different tests as well as to assist with identification of the drivers and mechanisms for the toxic effects observed. However, to maximize the ability to compare results between different laboratories and biota, it has long been recognized that guidelines for standard protocols were needed. In 2005, the Chemical Response to Oil Spills: Ecological Effects Research Forum (CROSERF) protocol was developed with existing common analytical methods that described a standard method for reproducible preparation of exposure media as well as recommended specific analytical methods and analyte lists for comparative toxicity testing. At the time, the primary purpose for the data collected was to inform oil spill response and contingency planning. Since then, with improvements in both analytical equipment and methods, the use of toxicity data has expanded to include their integration into fate and effect models that aim to extend the applicability of lab-based study results to make predictions for field system-level impacts. This paper focuses on providing a summary of current chemical analyses for characterization of oil and exposure media used during aquatic toxicity testing and makes recommendations for the minimum analyses needed to allow for interpretation and modeling purposes.
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Affiliation(s)
| | - Terry L Wade
- Geochemical and Environmental Research Group, Texas A&M University, College Station, Texas, USA
| | | | | | - Bruce P Hollebone
- Environment and Climate Change Canada, Emergency Sciences and Technology, Ottawa, Ontario, Canada
| | | | - Fatemeh S Mirnaghi
- Environment and Climate Change Canada, Emergency Sciences and Technology, Ottawa, Ontario, Canada
| | - Zeyu Yang
- Environment and Climate Change Canada, Emergency Sciences and Technology, Ottawa, Ontario, Canada
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Comas A, Santana A, Campiglia AD. On the co-elution of benzo[ a]pyrene and dibenzo[ a, l]pyrene in chromatographic fractions and their unambiguous determination in tobacco extracts via laser-excited time resolved Shpol'skii spectroscopy. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:1959-1968. [PMID: 37017264 DOI: 10.1039/d2ay02064e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
High performance liquid chromatography is widely used for the analysis of polycyclic aromatic hydrocarbons in a wide variety of samples. Of particular concern are benzo[a]pyrene and dibenzo[a,l]pyrene, two of the most toxic polycyclic aromatic hydrocarbons ever tested. Under EPA method 610, these two compounds co-elute with almost identical retention times. Our studies demonstrate the feasibility of directly determining them in a chromatographic fraction without further separation. Their unambiguous determination is based on spectral and lifetime information with a two-step experimental procedure consisting of the evaporation of the chromatographic fraction followed by the dissolution of the residue with microliters of n-octane. With the aid of a 77 K fiber optic probe, limits of detection at the parts-per-billion concentration level (ng mL-1) are obtained from the microliter sample via laser excited time resolved Shpol'skii spectroscopy. This approach is then applied to the analysis of benzo[a]pyrene and dibenzo[a,l]pyrene in tobacco extracts.
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Affiliation(s)
- Ahmed Comas
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, FL, 3281-2366, USA.
| | - Anthony Santana
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, FL, 3281-2366, USA.
| | - Andres D Campiglia
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Physical Science Room 255, Orlando, FL, 3281-2366, USA.
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