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Liu Y, Chan CK. The oxidative potential of fresh and aged elemental carbon-containing airborne particles: a review. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2022; 24:525-546. [PMID: 35333266 DOI: 10.1039/d1em00497b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Elemental carbon is often found in ambient particulate matter (PM), and it contributes to the PM's oxidative potential (OP) and thus poses great health concerns. Previous review articles mainly focused on the methodologies in evaluating OP in PM and its relationship with selected chemical constituents, including metal ions, PAHs, and inorganic species. In recent years, growing attention has been paid to the effect of atmospheric aging processes on the OP of EC-containing airborne particles (ECCAPs). This review investigates more than 150 studies concerning the OP measurements and physico-chemical properties of both fresh and aged ECCAPs such as laboratory-generated elemental carbon (LGEC), carbon black (CB), soot (black carbon), and engineered carbon-containing nanomaterials (ECCBNs). Specifically, we summarize the characteristics of water-soluble and insoluble organic species, PAHs, quinone, and oxygen-containing functional groups (OFGs), and EC crystallinity. Both water-soluble organic carbon (WSOC) and water-insoluble organic carbon (WIOC) contribute to the OP. Low molecular weight (MW) PAHs show a higher correlation with OP than high MW PAHs. Furthermore, oxidative aging processes introduce OFGs, where quinone (CO) and epoxide (O-C-O) increase the OP of ECCAPs. In contrast, carboxyl (-COOH) and hydroxyl (-OH) slightly change the OP. The low crystallinity of EC favors the oxygen addition and forms active OFG quinone, thus increasing the OP. More detailed analyses for the EC microstructures and the organic coatings are needed to predict the OP of ECCAPs.
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Affiliation(s)
- Yangyang Liu
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Chak K Chan
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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2
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Kong C, Yao S, Wu Z, Li J, Li G, Zhu J. Promotion Mechanism of CaSO 4 and Au in the Plasma-Assisted Catalytic Oxidation of Diesel Particulate Matter. ACS OMEGA 2022; 7:8640-8650. [PMID: 35309445 PMCID: PMC8928516 DOI: 10.1021/acsomega.1c06659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Plasma-assisted catalysis has been demonstrated to be an innovative technology for eliminating diesel particulate matter (DPM) efficiently at low temperature (≤200 °C). Moreover, past studies have demonstrated that CaSO4, which exists in small concentrations (<2%) in DPM and is toxic in thermal catalytic oxidation processes, actually enhances DPM oxidation during plasma-assisted catalytic processes. However, the role CaSO4 plays in this promotion of DPM oxidation still remains unclear. The present study addresses this issue by investigating the underlying mechanisms of DPM oxidation during plasma-assisted catalytic processes using graphitic carbon as a surrogate DPM material in conjunction with CaSO4- and Au-impregnated γ-Al2O3 catalysts. The results of mass spectrometry and in situ diffuse reflectance infrared Fourier transform spectroscopy, which employs an in situ cell with a small dielectric barrier discharge space over the catalyst bed, demonstrate that CaSO4 can save and release O atoms contributing to graphite oxidation via the -S=O units of CaSO4 through a reversible surface reaction (-S=O + O → -S(-O)2). The results are employed to propose a formal mechanism of graphite oxidation catalyzed by CaSO4 and Au. These findings both improve our understanding of the plasma-assisted catalytic oxidation mechanisms of DPM and support the development of efficient plasma-assisted catalysts.
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Affiliation(s)
- Chengrong Kong
- School
of Environmental and Safety Engineering, Advanced Plasma Catalysis
Engineering Laboratory for China Petrochemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Shuiliang Yao
- School
of Environmental and Safety Engineering, Advanced Plasma Catalysis
Engineering Laboratory for China Petrochemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Zuliang Wu
- School
of Environmental and Safety Engineering, Advanced Plasma Catalysis
Engineering Laboratory for China Petrochemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Jing Li
- School
of Environmental and Safety Engineering, Advanced Plasma Catalysis
Engineering Laboratory for China Petrochemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- Engineering
Research Center of Construction Technology of Precast Concrete of
Zhejiang Province, Hangzhou 310018, China
| | - Guojian Li
- School
of Environmental and Safety Engineering, Advanced Plasma Catalysis
Engineering Laboratory for China Petrochemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
- Engineering
Research Center of Construction Technology of Precast Concrete of
Zhejiang Province, Hangzhou 310018, China
| | - Jiali Zhu
- School
of Environmental and Safety Engineering, Advanced Plasma Catalysis
Engineering Laboratory for China Petrochemical Industry, Changzhou University, Changzhou, Jiangsu 213164, China
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Shin TH, Kim SG, Ji M, Kwon DH, Hwang JS, George NP, Ergando DS, Park CB, Paik MJ, Lee G. Diesel-derived PM 2.5 induces impairment of cardiac movement followed by mitochondria dysfunction in cardiomyocytes. Front Endocrinol (Lausanne) 2022; 13:999475. [PMID: 36246901 PMCID: PMC9554599 DOI: 10.3389/fendo.2022.999475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/13/2022] [Indexed: 11/13/2022] Open
Abstract
Particulate matter (PM) in polluted air can be exposed to the human body through inhalation, ingestion, and skin contact, accumulating in various organs throughout the body. Organ accumulation of PM is a growing health concern, particularly in the cardiovascular system. PM emissions are formed in the air by solid particles, liquid droplets, and fuel - particularly diesel - combustion. PM2.5 (size < 2.5 μm particle) is a major risk factor for approximately 200,000 premature deaths annually caused by air pollution. This study assessed the deleterious effects of diesel-derived PM2.5 exposure in HL-1 mouse cardiomyocyte cell lines. The PM2.5-induced biological changes, including ultrastructure, intracellular reactive oxygen species (ROS) generation, viability, and intracellular ATP levels, were analyzed. Moreover, we analyzed changes in transcriptomics using RNA sequencing and metabolomics using gas chromatography-tandem mass spectrometry (GC-MS/MS) and liquid chromatography-tandem mass spectrometry (LC-MS/MS) in PM2.5-treated HL-1 cells. Ultrastructural analysis using transmission electron microscopy revealed disruption of mitochondrial cristae structures in a PM2.5 dose-dependent manner. The elevation of ROS levels and reduction in cell viability and ATP levels were similarly observed in a PM2.5 dose-dependently. In addition, 6,005 genes were differentially expressed (fold change cut-off ± 4) from a total of 45,777 identified genes, and 20 amino acids (AAs) were differentially expressed (fold change cut-off ± 1.2) from a total of 28 identified AAs profiles. Using bioinformatic analysis with ingenuity pathway analysis (IPA) software, we found that the changes in the transcriptome and metabolome are highly related to changes in biological functions, including homeostasis of Ca2+, depolarization of mitochondria, the function of mitochondria, synthesis of ATP, and cardiomyopathy. Moreover, an integrated single omics network was constructed by combining the transcriptome and the metabolome. In silico prediction analysis with IPA predicted that upregulation of mitochondria depolarization, ROS generation, cardiomyopathy, suppression of Ca2+ homeostasis, mitochondrial function, and ATP synthesis occurred in PM2.5-treated HL-1 cells. In particular, the cardiac movement of HL-1 was significantly reduced after PM2.5 treatment. In conclusion, our results assessed the harmful effects of PM2.5 on mitochondrial function and analyzed the biological changes related to cardiac movement, which is potentially associated with cardiovascular diseases.
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Affiliation(s)
- Tae Hwan Shin
- Department of Physiology, Ajou University School of Medicine, Suwon, South Korea
| | - Seok Gi Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
| | - Moongi Ji
- College of Pharmacy, Sunchon National University, Suncheon, South Korea
| | - Do Hyeon Kwon
- Department of Physiology, Ajou University School of Medicine, Suwon, South Korea
| | - Ji Su Hwang
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
| | | | - Dube Solomon Ergando
- Department of Physiology, Ajou University School of Medicine, Suwon, South Korea
| | - Chan Bae Park
- Department of Physiology, Ajou University School of Medicine, Suwon, South Korea
| | - Man Jeong Paik
- College of Pharmacy, Sunchon National University, Suncheon, South Korea
- *Correspondence: Man Jeong Paik, ; Gwang Lee,
| | - Gwang Lee
- Department of Physiology, Ajou University School of Medicine, Suwon, South Korea
- Department of Molecular Science and Technology, Ajou University, Suwon, South Korea
- *Correspondence: Man Jeong Paik, ; Gwang Lee,
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Wise SA, Sander LC, Schantz MM. Analytical Methods for Determination of Polycyclic Aromatic Hydrocarbons (PAHs) — A Historical Perspective on the 16 U.S. EPA Priority Pollutant PAHs. Polycycl Aromat Compd 2015. [DOI: 10.1080/10406638.2014.970291] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Stephen A. Wise
- Chemical Sciences Division, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland, USA
| | - Lane C. Sander
- Chemical Sciences Division, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland, USA
| | - Michele M. Schantz
- Chemical Sciences Division, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland, USA
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5
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Claxton LD. The history, genotoxicity, and carcinogenicity of carbon-based fuels and their emissions: Part 5. Summary, comparisons, and conclusions. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2015; 763:103-47. [DOI: 10.1016/j.mrrev.2014.10.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 10/04/2014] [Accepted: 10/06/2014] [Indexed: 12/19/2022]
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Schantz MM, McGaw E, Wise SA. Pressurized liquid extraction of diesel and air particulate standard reference materials: effect of extraction temperature and pressure. Anal Chem 2012; 84:8222-31. [PMID: 22963542 DOI: 10.1021/ac301443v] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Four particulate matter Standard Reference Materials (SRMs) available from the National Institute of Standards and Technology (NIST) were used to evaluate the effect of solvent, number of static cycles and static times, pressure, and temperature when using pressurized liquid extraction (PLE) for the extraction of polycyclic aromatic hydrocarbons (PAHs) and nitrated-PAHs. The four materials used in the study were SRM 1648a Urban Particulate Matter, SRM 1649b Urban Dust, SRM 1650b Diesel Particulate Matter, and SRM 2975 Diesel Particulate Matter (Industrial Forklift). The results from the study indicate that the choice of solvent, dichloromethane compared to toluene and toluene/methanol mixtures, had little effect on the extraction efficiency. With three to five extraction cycles, increasing the extraction time for each cycle from 5 to 30 min had no significant effect on the extraction efficiency. The differences in extraction efficiency were not significant (with over 95% of the differences being <10%) when the pressure was increased from 13.8 to 20.7 MPa. The largest increase in extraction efficiency occurred for selected PAHs when the temperature of extraction was increased from 100 to 200 °C. At 200 °C naphthalene, biphenyl, fluorene, dibenzothiophene, and anthracene show substantially higher mass fractions (>30%) than when extracted at 100 °C in all the SRMs studied. For SRM 2975, large increases (>100%) are also observed for some other PAHs including benz[a]anthracene, benzo[k]fluoranthene, benzo[e]pyrene, benzo[a]pyrene, benzo[ghi]perylene, and benzo[b]chrysene when extracted at the higher temperatures; however, similar trends were not observed for the other diesel particulate sample, SRM 1650b. The results are discussed in relation to the use of the SRMs for evaluating analytical methods.
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Affiliation(s)
- Michele M Schantz
- Analytical Chemistry Division, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA.
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7
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Role of chromatography in the development of Standard Reference Materials for organic analysis. J Chromatogr A 2012; 1261:3-22. [PMID: 22721765 DOI: 10.1016/j.chroma.2012.05.093] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 05/24/2012] [Accepted: 05/25/2012] [Indexed: 11/22/2022]
Abstract
The certification of chemical constituents in natural-matrix Standard Reference Materials (SRMs) at the National Institute of Standards and Technology (NIST) can require the use of two or more independent analytical methods. The independence among the methods is generally achieved by taking advantage of differences in extraction, separation, and detection selectivity. This review describes the development of the independent analytical methods approach at NIST, and its implementation in the measurement of organic constituents such as contaminants in environmental materials, nutrients and marker compounds in food and dietary supplement matrices, and health diagnostic and nutritional assessment markers in human serum. The focus of this review is the important and critical role that separation science techniques play in achieving the necessary independence of the analytical steps in the measurement of trace-level organic constituents in natural matrix SRMs.
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Hilber I, Blum F, Leifeld J, Schmidt HP, Bucheli TD. Quantitative determination of PAHs in biochar: a prerequisite to ensure its quality and safe application. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:3042-50. [PMID: 22397545 DOI: 10.1021/jf205278v] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Biochar is increasingly promoted as a beneficial soil conditioner. However, it may contain residues of polycyclic aromatic hydrocarbons (PAHs) as a result of its production by pyrolysis. To date, analytical methods to analyze PAHs in biochar quantitatively are hardly available. This study presents an optimized and validated procedure to quantify the 16 U.S. EPA PAHs in biochar. PAHs were best extracted with Soxhlet for 36 h using 100% toluene. Average absolute recoveries of isotope labeled internal standards used for each analyte from three different biochars ranged from 42% to 72%, and relative recoveries were between 71% and 105%. The limits of detection were biochar-dependent, but on average a factor of >50 lower than quantified PAH concentrations (9-355 mg kg(dry weight)(-1)). The established method prepares the ground for a harmonized protocol for PAH analysis of biochars, a necessity for biochar quality control, registration, and legislation.
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Affiliation(s)
- Isabel Hilber
- Agroscope Reckenholz-Tänikon, Research Station ART, Reckenholzstrasse 191, 8046 Zürich, Switzerland
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9
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Poster DL, Benner BA, Schantz MM, Sander LC, Wise SA, Vangel MG. Determination of Methyl-Substituted Polycyclic Aromatic Hydrocarbons in Diesel Particulate-Related Standard Reference Materials. Polycycl Aromat Compd 2010. [DOI: 10.1080/10406630308059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Dianne L. Poster
- a Analytical Chemistry Division , National Institute of Standards and Technology , Gaithersburg , Maryland , USA
| | - Bruce A. Benner
- a Analytical Chemistry Division , National Institute of Standards and Technology , Gaithersburg , Maryland , USA
| | - Michele M. Schantz
- a Analytical Chemistry Division , National Institute of Standards and Technology , Gaithersburg , Maryland , USA
| | - Lane C. Sander
- a Analytical Chemistry Division , National Institute of Standards and Technology , Gaithersburg , Maryland , USA
| | - Stephen A. Wise
- a Analytical Chemistry Division , National Institute of Standards and Technology , Gaithersburg , Maryland , USA
| | - Mark G. Vangel
- b Statistical Engineering Division , National Institute of Standards and Technology , Gaithersburg , Maryland , USA
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10
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Poster DL, Schantz MM, Sander LC, Wise SA. Analysis of polycyclic aromatic hydrocarbons (PAHs) in environmental samples: a critical review of gas chromatographic (GC) methods. Anal Bioanal Chem 2006; 386:859-81. [PMID: 17019586 DOI: 10.1007/s00216-006-0771-0] [Citation(s) in RCA: 260] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2006] [Revised: 08/04/2006] [Accepted: 08/10/2006] [Indexed: 11/30/2022]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are frequently measured in the atmosphere for air quality assessment, in biological tissues for health-effects monitoring, in sediments and mollusks for environmental monitoring, and in foodstuffs for safety reasons. In contemporary analysis of these complex matrices, gas chromatography (GC), rather than liquid chromatography (LC), is often the preferred approach for separation, identification, and quantification of PAHs, largely because GC generally affords greater selectivity, resolution, and sensitivity than LC. This article reviews modern-day GC and state-of-the-art GC techniques used for the determination of PAHs in environmental samples. Standard test methods are discussed. GC separations of PAHs on a variety of capillary columns are examined, and the properties and uses of selected mass spectrometric (MS) techniques are presented. PAH literature on GC with MS techniques, including chemical ionization, ion-trap MS, time-of-flight MS (TOF-MS), and isotope-ratio mass spectrometry (IRMS), is reviewed. Enhancements to GC, for example large-volume injection, thermal desorption, fast GC, and coupling of GC to LC, are also discussed with regard to the determination of PAHs in an effort to demonstrate the vigor and robustness GC continues to achieve in the analytical sciences.
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Affiliation(s)
- Dianne L Poster
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8392, USA.
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11
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Wise SA, Poster DL, Kucklick JR, Keller JM, Vanderpol SS, Sander LC, Schantz MM. Standard reference materials (SRMs) for determination of organic contaminants in environmental samples. Anal Bioanal Chem 2006; 386:1153-90. [PMID: 17047949 DOI: 10.1007/s00216-006-0719-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2006] [Revised: 07/27/2006] [Accepted: 07/28/2006] [Indexed: 10/24/2022]
Abstract
For the past 25 years the National Institute of Standards and Technology (NIST) has developed certified reference materials (CRMs), known as standard reference materials (SRMs), for determination of organic contaminants in environmental matrices. Assignment of certified concentrations has usually been based on combining results from two or more independent analytical methods. The first-generation environmental-matrix SRMs were issued with certified concentrations for a limited number (5 to 10) of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). Improvements in the analytical certification approach significantly expanded the number and classes of contaminants determined. Environmental-matrix SRMs currently available include air and diesel particulate matter, coal tar, marine and river sediment, mussel tissue, fish oil and tissue, and human serum, with concentrations typically assigned for 50 to 90 organic contaminants, for example PAHs, nitro-substituted PAHs, PCBs, chlorinated pesticides, and polybrominated diphenyl ethers (PBDEs).
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Affiliation(s)
- Stephen A Wise
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
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12
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Schantz MM. Pressurized liquid extraction in environmental analysis. Anal Bioanal Chem 2006; 386:1043-7. [PMID: 16896622 DOI: 10.1007/s00216-006-0648-2] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2006] [Revised: 06/19/2006] [Accepted: 06/21/2006] [Indexed: 11/29/2022]
Abstract
A critical evaluation of recent literature utilizing pressurized liquid extraction (PLE) for environmental analysis is presented by compound class. Overall, the extraction efficiency of PLE, using the appropriate solvent, temperature and pressure for extraction, is similar to that of Soxhlet extraction. PLE has been used for some classes of compounds that are thermally labile (e.g., explosives) and may require acidic conditions for extraction (e.g., organometallic compounds). References to recent applications are presented emphasizing studies which utilize unspiked, natural matrices and studies that compare PLE to alternate extraction techniques.
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Affiliation(s)
- Michele M Schantz
- Analytical Chemistry Division, Chemical Science and Technology Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA.
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13
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Lippa KA, Schantz MM. Microheterogeneity evaluation of polycyclic aromatic hydrocarbons in particulate standard reference materials. Anal Bioanal Chem 2006; 387:2389-99. [PMID: 16896630 DOI: 10.1007/s00216-006-0583-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2006] [Revised: 05/24/2006] [Accepted: 05/31/2006] [Indexed: 10/24/2022]
Abstract
With the emergence of highly sensitive analytical techniques, the microanalysis of natural-matrix materials employing smaller sample sizes is increasingly more common, which subsequently warrants a homogeneity assessment for the individual components at the appropriate sampling level. Pressurized liquid extraction (PLE) in combination with gas chromatography/mass spectrometry (GC/MS) has been used to determine the sampling constants and evaluate the relative homogeneity of trace levels of polycyclic aromatic hydrocarbons (PAHs) for two previously certified particulate standard reference materials, SRM 1649a Urban Dust and SRM 1650b Diesel Particulate Matter, in the milligram sampling range. Fluoranthene, pyrene, benz[a]anthracene and benzo[e]pyrene within SRM 1650b Diesel Particulate Matter were deemed to be homogeneous, based on relatively small sampling constants (K (S)<100 mg), whereas the larger sampling constants (K (S)>100 mg) obtained for all PAHs in SRM 1649a Urban Dust suggest more material heterogeneity. The material heterogeneity of ten individual PAHs (phenanthrene, anthracene, fluoranthene, pyrene, benz[a]anthracene, benzo[k]fluoranthene, benzo[e]pyrene, benzo[a]pyrene, indeno[1,2,3-cd]pyrene and benzo[ghi]perylene) was also described via nonlinear relationships (i.e., power law) between subsampling error S (s) (%) and sample mass, which are used to predict analyte-specific minimum sample masses that result in a specific level of analytical uncertainty.
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Affiliation(s)
- Katrice A Lippa
- Analytical Chemistry Division, Chemical Science and Technology Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA.
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14
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Bamford HA, Bezabeh DZ, Schantz S, Wise SA, Baker JE. Determination and comparison of nitrated-polycyclic aromatic hydrocarbons measured in air and diesel particulate reference materials. CHEMOSPHERE 2003; 50:575-587. [PMID: 12685733 DOI: 10.1016/s0045-6535(02)00667-7] [Citation(s) in RCA: 158] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The National Institute of Standards and Technology has issued numerous environmental matrix standard reference materials (SRMs) for the measurement of polycyclic aromatic hydrocarbons; however, only one SRM (diesel particulate material) was issued with certified and reference values for four nitrated-polycyclic aromatic hydrocarbons (nitro-PAH). The objective of this study was to develop an improved analytical procedure to quantify 28 mononitro- and dinitro-PAHs, including numerous isomers, in air and diesel particulate SRMs. Two air particulate matrix SRMs, SRM 1649a Urban Dust and SRM 1648 Urban Particulate Matter, and fine particulate matter, collected from Baltimore MD for use as an "interim reference material" for the determination of organic contaminants, have been characterized for nitro-PAHs. Concentrations of nitro-PAHs in all three air particulate materials were at the ng/g level with the highest nitro-PAH concentration being 2-nitrofluoranthene (range between 246 and 340 ng/g). For the three diesel particulate-related SRMs, SRM 1650a Diesel Particulate Matter, SRM 1975 Diesel Particulate Extract, and SRM 2975 Diesel Particulate Matter (Industrial Fortlift), concentrations of nitro-PAHs were in the microg/g range, with 1-nitropyrene as the dominant nitro-PAH (range between 18 and 40 microg/g). Distinct nitro-PAH isomer patterns were present between the air and diesel particulate materials. These results will provide isomer identification and reference concentrations for a large number of nitro-PAHs in the existing diesel and air particulate SRMs. Published by Elsevier Science Ltd.
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Affiliation(s)
- Holly A Bamford
- Chesapeake Biological Laboratory, Center for Environmental Science, The University of Maryland, P.O. Box 38, Solomons, MD 20688-0038, USA.
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