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Qiu M, Zheng S, Li P, Tang L, Xu Q, Weng S. Detection of 1-OHPyr in human urine using SERS with injection under wet liquid-liquid self-assembled films of β-CD-coated gold nanoparticles and deep learning. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122238. [PMID: 36592595 DOI: 10.1016/j.saa.2022.122238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/06/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
1-Hydroxypyrene (1-OHPyr), a typical hydroxylated polycyclic aromatic hydrocarbon (OH-PAH), has been commonly regarded as a urinary biomarker for assessing human exposure and health risks of PAHs. Herein, a fast and sensitive method was developed for the determination of 1-OHPyr in urine using surface-enhanced Raman spectroscopy (SERS) combined with deep learning (DL). After emulsification, urinary 1-OHPyr was separated using simple liquid-liquid extraction. Gold nanoparticles with β-cyclodextrin (β-CD@AuNPs) were synthesized, and homogeneous and ordered β-CD@AuNP films were prepared through a liquid-liquid interface self-assembly process. The separated 1-OHPyr was injected under wet assembled films for SERS detection. Concentration as low as 0.05 μg mL-1 of 1-OHPyr in urine could still be detected, and the relative standard deviation was 5.5 %, and this was ascribed to the adsorption of β-CD and the high-probability contact between 1-OHPyr molecules and the nanogap of assembled films under the action of capillary force. Meanwhile, a convolutional neural network (CNN), a classical DL network architecture, was adopted to build the prediction model, and the model was further simplified by genetic algorithm (GA). CNN combined with a GA obtained optimized results with determination coefficient and a root mean square error of prediction sets of 0.9639 and 0.6327, respectively, outperforming other models. Overall, the proposed method achieves fast and accurate detection of 1-OHPyr in urine, improves the assessment human exposure to PAHs and is expected to have applications in the analysis of other OH-PAHs in complex environments.
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Affiliation(s)
- Mengqing Qiu
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Shouguo Zheng
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Lu'an Branch, Anhui Institute of Innovation for Industrial Technology, Lu'an 237100, People's Republic of China
| | - Pan Li
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Le Tang
- National Engineering Research Center for Agro-Ecological Big Data Analysis & Application, Anhui University, Hefei 230601, People's Republic of China
| | - Qingshan Xu
- Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, People's Republic of China.
| | - Shizhuang Weng
- Lu'an Branch, Anhui Institute of Innovation for Industrial Technology, Lu'an 237100, People's Republic of China; National Engineering Research Center for Agro-Ecological Big Data Analysis & Application, Anhui University, Hefei 230601, People's Republic of China.
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2
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Rolando L, Vila J, Baquero RP, Castilla-Alcantara JC, Barra Caracciolo A, Ortega-Calvo JJ. Impact of bacterial motility on biosorption and cometabolism of pyrene in a porous medium. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 717:137210. [PMID: 32062235 DOI: 10.1016/j.scitotenv.2020.137210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/07/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
The risks of pollution by polycyclic aromatic hydrocarbons (PAHs) may increase in bioremediated soils as a result of the formation of toxic byproducts and the mobilization of pollutants associated to suspended colloids. In this study, we used the motile and chemotactic bacterium Pseudomonas putida G7 as an experimental model for examining the potential role of bacterial motility in the cometabolism and biosorption of pyrene in a porous medium. For this purpose, we conducted batch and column transport experiments with 14C-labelled pyrene loaded on silicone O-rings, which acted as a passive dosing system. In the batch experiments, we observed concentrations of the 14C-pyrene equivalents well above the equilibrium concentration observed in abiotic controls. This mobilization was attributed to biosorption and cometabolism processes occurring in parallel. HPLC quantification revealed pyrene concentrations well below the 14C-based quantifications by liquid scintillation, indicating pyrene transformation into water-soluble polar metabolites. The results from transport experiments in sand columns revealed that cometabolic-active, motile cells were capable of accessing a distant source of sorbed pyrene. Using the same experimental system, we also determined that salicylate-mobilized cells, inhibited for pyrene cometabolism, but mobilized due to their tactic behavior, were able to sorb the compound and mobilize it by biosorption. Our results indicate that motile bacteria active in bioremediation may contribute, through cometabolism and biosorption, to the risk associated to pollutant mobilization in soils. This research could be the starting point for the development of more efficient, low-risk bioremediation strategies of poorly bioavailable contaminants in soils.
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Affiliation(s)
- Ludovica Rolando
- Istituto di Ricerca Sulle Acque (IRSA), CNR, Via Salaria km 29.300, 00015 Monterotondo Scalo, RM, Italy; Dipartimento di Science Ecologiche e Biologiche (DEB), Universita degli studi della Tuscia, Via San Camillo de Lellis, 01100 Viterbo, Italy; Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, Spain
| | - Joaquim Vila
- Departament de Microbiologia, Universitat de Barcelona, Avenida Diagonal 643, 08028 Barcelona, Spain; Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, Spain
| | - Rosa Posada Baquero
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, Spain
| | - Jose Carlos Castilla-Alcantara
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, Spain
| | - Anna Barra Caracciolo
- Istituto di Ricerca Sulle Acque (IRSA), CNR, Via Salaria km 29.300, 00015 Monterotondo Scalo, RM, Italy
| | - Jose-Julio Ortega-Calvo
- Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Avenida Reina Mercedes, 10, E-41012 Seville, Spain.
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3
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Garcia-Alonso S, Perez-Pastor RM. Organic Analysis of Environmental Samples Using Liquid Chromatography with Diode Array and Fluorescence Detectors: An Overview. Crit Rev Anal Chem 2019; 50:29-49. [PMID: 30925844 DOI: 10.1080/10408347.2019.1570461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This overview is focused to provide an useful guide of the families of organic pollutants that can be determined by liquid chromatography operating in reverse phase and ultraviolet/fluorescence detection. Eight families have been classified as the main groups to be considered: carbonyls, carboxyls, aromatics, phenols, phthalates, isocyanates, pesticides and emerging. The references have been selected based on analytical methods used in the environmental field, including both the well-established procedures and those more recently developed.
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4
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Sun CZ, Zhang LY, Wang JY, Chen ZN, Dai FR. Sensitive and selective urinary 1-hydroxypyrene detection by dinuclear terbium-sulfonylcalixarene complex. Dalton Trans 2018; 47:8301-8306. [DOI: 10.1039/c8dt01604f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conveniently synthesized sulfonylcalixarene-based dinuclear terbium luminescent sensor exhibits quick response, high sensitivity, and specific selectivity for urinary 1-hydroxypyrene detection.
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Affiliation(s)
- Cheng-Zhe Sun
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Li-Yi Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Jin-Yun Wang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Zhong-Ning Chen
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Feng-Rong Dai
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
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5
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Hu Y, Du C, Li Y, Fan L, Li X. A gold nanoparticle-based colorimetric probe for rapid detection of 1-hydroxypyrene in urine. Analyst 2015; 140:4662-7. [DOI: 10.1039/c5an00722d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct and rapid detection of 1-hydroxypyrene (1-OHP) is of great importance owing to its high carcinogenicity, teratogenicity and toxicity.
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Affiliation(s)
- Yaqi Hu
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Chunyan Du
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Yunchao Li
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Louzhen Fan
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
| | - Xiaohong Li
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education
- College of Chemistry
- Beijing Normal University
- Beijing 100875
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6
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Yang P, Zheng Q, Xu H, Liu J, Jin L. A Highly Sensitive Electrochemical Impedance Spectroscopy Immunosensor for Determination of 1-Pyrenebutyric Acid Based on the Bifunctionality of Nafion/Gold Nanoparticles Composite Electrode. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100485] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7
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Spier CR, Vadas GG, Kaattari SL, Unger MA. Near real-time, on-site, quantitative analysis of PAHs in the aqueous environment using an antibody-based biosensor. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2011; 30:1557-63. [PMID: 21547938 DOI: 10.1002/etc.546] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Revised: 02/28/2011] [Accepted: 03/21/2011] [Indexed: 05/14/2023]
Abstract
Rapid, on-site, quantitative assessments of dissolved polycyclic aromatic hydrocarbons (PAHs) were demonstrated for two field applications. The platform, a KinExA Inline Sensor (Sapidyne Instruments), employed the monoclonal anti-PAH antibody, 7B2.3, which has specificity for 3- to 5-ring PAHs. A spatial study was conducted near a dredging site where contaminated sediments were being removed, and a temporal study was performed during a rainfall event. Most importantly, the generation of near real-time data guided management decisions in the field and determined proper sampling protocols for conventional analyses. The method was able to determine PAH concentrations as low as 0.3 µg/L, within 10 min of sample acquisition, and to assess 80+ samples (not including standards and blanks) in less than 3 d. These results were compared with a laboratory-based gas chromatography-mass spectrometry method in which a wide array of PAHs, including alkylated homologs, were examined. This system shows great promise as a field instrument for the rapid monitoring of PAH pollution.
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Affiliation(s)
- Candace R Spier
- Virginia Institute of Marine Science, College of William & Mary, Gloucester Point, Virginia, USA
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8
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New tools to assess toxicity, bioaccessibility and uptake of chemical contaminants in meat and seafood. Food Res Int 2011. [DOI: 10.1016/j.foodres.2010.12.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Beach DG, Quilliam MA, Rouleau C, Croll RP, Hellou J. Bioaccumulation and biotransformation of pyrene and 1-hydroxypyrene by the marine whelk Buccinum undatum. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2010; 29:779-788. [PMID: 20821506 DOI: 10.1002/etc.112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The fates of a phenolic contaminant and its hydrocarbon precursor have rarely been compared, especially in an invertebrate species. Two groups of Buccinum undatum were exposed to equimolar amounts of pyrene and 1-hydroxypyrene over 15 d through their diets. Tissue extracts from the muscle and visceral mass were analyzed by liquid chromatography with fluorescence and mass spectrometry detection. Nine biotransformation products were detected in animals from both exposures. These included 1-hydroxypyrene, pyrene-1-sulfate, pyrene-1-glucuronide, pyrene glucose sulfate, two isomers each of pyrenediol sulfate and pyrenediol disulfate, and one isomer of pyrenediol glucuronide sulfate. These compounds represent a more complex metabolic pathway for pyrene than is typically reported. Diconjugated metabolites were as important in animals exposed to pyrene as in those exposed to 1-hydroxypyrene. Biotransformation products represented >90% of the material detected in the animals and highlight the importance of analyzing metabolites when assessing exposure. A mean of only 2 to 3% of the body burden was present in muscle compared with the visceral mass of both groups. The analytical methods were sufficiently sensitive to detect biotransformation products both in laboratory control whelks and in those sampled offshore. The tissue distribution of [(14)C]pyrene was also studied by autoradiography. Radioactivity was present primarily in the digestive and excretory system of the whelks and not in the gonads or muscle tissue.
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Affiliation(s)
- Daniel G Beach
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4R2 Canada
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10
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Beach DG, Quilliam MA, Hellou J. Analysis of pyrene metabolites in marine snails by liquid chromatography using fluorescence and mass spectrometry detection. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:2142-52. [DOI: 10.1016/j.jchromb.2009.06.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 06/03/2009] [Accepted: 06/05/2009] [Indexed: 10/20/2022]
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11
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Goryacheva IY, Beloglazova NV, Eremin SA, Mikhirev DA, Niessner R, Knopp D. Gel-based immunoassay for non-instrumental detection of pyrene in water samples. Talanta 2007; 75:517-22. [PMID: 18371915 DOI: 10.1016/j.talanta.2007.11.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2007] [Revised: 11/12/2007] [Accepted: 11/15/2007] [Indexed: 11/26/2022]
Abstract
A new qualitative immunologically based tube test for non-instrumental detection of pyrene (PYR) in water samples was developed. The method combines the pre-concentration of analyte by immunoextraction and its detection by immunoassay using Sepharose 4B-immobilized IgG-fraction of a polyclonal anti-PYR antiserum (immunoaffinity gel) and 1-pyrenebutyric acid-horseradish peroxidase conjugate (PYR-BA-HRP). The immunoaffinity gel was placed in a standard 1-ml SPE column through which a 10-ml aliquot of water sample spiked with 10% acetonitrile was passed. Following, free antibody binding sites were detected by application of PYR-BA-HRP. Four minutes after addition of the chromogenic substrate the results were visually evaluated by occurring or stayed away blue colour development for negative and positive samples, respectively. Total time for assay was about 15 min for six samples. Under optimized conditions a cut-off level for pyrene of 0.04 ng ml(-1) was found. At this defined concentration, a set of spiked samples (n=175) was analyzed and very low rates of false negatives (1.2%) and false positives (4.6%) determined which fulfils the requirement set by Commission Decision 2002/657/EC for a screening method. No interference by other PAH compounds like naphthalene, fluoranthene, phenanthrene, anthracene, and benzo[a]pyrene at a concentration of 20 ng ml(-1), i.e., 500-fold excess compared to the defined cut-off level was observed. Different water types like surface water, tap water, bottled water, and melted snow were analyzed for PYR contamination by the proposed method and results confirmed by HPLC-FLD.
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Affiliation(s)
- Irina Yu Goryacheva
- Saratov State University, Chemistry Faculty, Department of Common and Inorganic Chemistry, Astrakhanskaya 83, 410012 Saratov, Russia.
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12
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Hua G, Broderick J, Semple KT, Killham K, Singleton I. Rapid quantification of polycyclic aromatic hydrocarbons in hydroxypropyl-beta-cyclodextrin (HPCD) soil extracts by synchronous fluorescence spectroscopy (SFS). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2007; 148:176-81. [PMID: 17240015 DOI: 10.1016/j.envpol.2006.10.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2006] [Revised: 10/17/2006] [Accepted: 10/21/2006] [Indexed: 05/13/2023]
Abstract
Synchronous fluorescence spectroscopy (SFS) was directly applied to rapidly quantify selected polycyclic aromatic hydrocarbons (PAHs: benzo[a]pyrene and pyrene) in aqueous hydroxypropyl-beta-cyclodextrin (HPCD) soil extract solutions from a variety of aged contaminated soils containing four different PAHs. The method was optimized and validated. The results show that SFS can be used to analyse benzo[a]pyrene and pyrene in HPCD based soil extracts with high sensitivity and selectivity. The linear calibration ranges were 4.0x10(-6)-1.0x10(-3)mM for benzo[a]pyrene and 6.0x10(-6)-1.2x10(-3)mM for pyrene in 10mM HPCD aqueous solution alone. The detection limits according to the error propagation theory for benzo[a]pyrene and pyrene were 3.9x10(-6) and 5.4x10(-6)mM, respectively. A good agreement between SFS and HPLC was reached for both determinations of PAHs in HPCD alone and in soil HPCD extracts. Hence, SFS is a potential means to simplify the present non-exhaustive hydroxypropyl-beta-cyclodextrin (HPCD)-based extraction technique for the evaluation of PAH bioavailability in soil.
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Affiliation(s)
- Guoxiong Hua
- School of Biology and Psychology, Institute for Research on Environment and Sustainability, Newcastle University, Newcastle upon Tyne, UK.
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13
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Yu Goryacheva I, Eremin SA, Shutaleva EA, Suchanek M, Niessner R, Knopp D. Development of a Fluorescence Polarization Immunoassay for Polycyclic Aromatic Hydrocarbons. ANAL LETT 2007. [DOI: 10.1080/00032710701297034] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Rawa-Adkonis M, Wolska L, Namieśnik J. Analytical Procedures for PAH and PCB Determination in Water Samples—Error Sources. Crit Rev Anal Chem 2007. [DOI: 10.1080/10408340600713645] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Magdalena Rawa-Adkonis
- a Department of Analytical Chemistry, Chemical Faculty , Gdańsk University of Technology (GUT) , Gdańsk, Poland
| | - Lidia Wolska
- a Department of Analytical Chemistry, Chemical Faculty , Gdańsk University of Technology (GUT) , Gdańsk, Poland
| | - Jacek Namieśnik
- a Department of Analytical Chemistry, Chemical Faculty , Gdańsk University of Technology (GUT) , Gdańsk, Poland
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15
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Sánchez-Brunete C, Miguel E, Tadeo JL. Rapid method for the determination of polycyclic aromatic hydrocarbons in agricultural soils by sonication-assisted extraction in small columns. J Sep Sci 2006; 29:2166-72. [PMID: 17069246 DOI: 10.1002/jssc.200500418] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A rapid method has been developed for the determination of 16 polycyclic aromatic hydrocarbons (PAHs) in soil based on their sonication-assisted extraction in small columns (SAESC) with a low volume of ethyl acetate and subsequent quantitation and identification by GC with electron impact mass spectrometric detection in the SIM mode (GC-MS-SIM). Spiked blank soil extracts were used as standards to counteract the matrix effect observed in the chromatographic determination. PAHs were confirmed at trace level by their retention times, their qualifier and target ions, and their qualifier/target abundance ratios. Recovery studies were performed at 0.5, 1.0, 5.0, and 10 microg/kg fortification levels for each PAH, and the recoveries obtained ranged from 91.2 to 99.8% with RSDs between 0.4 and 9.3%. The detection limits of the method ranged from 0.03 to 0.3 microg/kg for the different PAHs studied. The developed method is linear over the range assayed, 1-100 microg/L with determination coefficients higher than 0.996. PAH levels were determined using this method in soil samples taken from different agricultural areas of Spain. In general, PAH concentrations were low and the most frequently occurring PAHs were naphthalene, pyrene, phenanthrene, and fluoranthene.
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16
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Maisonnette C, Simon P, Hennion MC, Pichon V. Selective immunoclean-up followed by liquid chromatography for the monitoring of a biomarker of exposure to polycyclic aromatic hydrocarbons in urine at the ngl−1 level. J Chromatogr A 2006; 1120:185-93. [PMID: 16414055 DOI: 10.1016/j.chroma.2005.12.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2005] [Revised: 11/08/2005] [Accepted: 12/02/2005] [Indexed: 10/25/2022]
Abstract
A selective clean-up procedure using an immunosorbent (IS) was developed for the trace-level determination, in water and urine samples, of 3-benzo(a)pyrene-glucuronide (3-BP-G), a biomarker of exposure to carcinogenic polycyclic aromatic hydrocarbons (PAHs). First, three sorbents used for the immobilization of antibodies were evaluated for their ability to limit the risk of non-specific interactions and to provide a high bonding density. The best sorbent, i.e. sepharose, was used for the immobilization of two different monoclonal antibodies. The most specific antibody for 3-BP-G was applied to the selective extraction from urine providing a clean extract, an easy and reliable quantification by comparison with a classical SPE process. The sensitivity of the fluorescence associated with the selectivity of the IS provides a limit of detection up to 1.2 ng l(-1) in urine for 3-BP-G.
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Affiliation(s)
- Carine Maisonnette
- Laboratoire Environnement et Chimie Analytique, LECA, UMR CNRS 7121, Ecole Supérieure de Physique et Chimie Industrielles, ESPCI, 10, rue Vauquelin 75231 Paris Cedex 05, France
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17
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Bouvrette P, Hrapovic S, Male KB, Luong JHT. Analysis of the 16 Environmental Protection Agency priority polycyclic aromatic hydrocarbons by high performance liquid chromatography-oxidized diamond film electrodes. J Chromatogr A 2006; 1103:248-56. [PMID: 16337212 DOI: 10.1016/j.chroma.2005.11.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2005] [Revised: 11/07/2005] [Accepted: 11/09/2005] [Indexed: 11/17/2022]
Abstract
The capabilities of using boron-doped diamond (BDD) thin films as electrode materials for analysis of the 16 US Environmental Protection Agency (EPA) priority polyaromatic hydrocarbons (PAHs) after a liquid chromatographic separation were evaluated. The BDD electrode was able to detect all 16 PAHs with high sensitivity due to the low background current and wide potential window. The method provided detection limits ranging from 12-40 nM (3-10 ppb) and repeatable results over consecutive analysis. Calibration curves were linear up to at least 10 microM for all PAHs. The work shows the promising use of diamond as an amperometric detector in high performance liquid chromatography (HPLC), especially for PAHs and other hydrophobic aromatic compounds.
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Affiliation(s)
- Pierre Bouvrette
- Biotechnology Research Institute, National Research Council Canada Montreal, Quebec, Canada H4P 2R2
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18
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Knopp D, Niessner R. Biomonitors based on immunological principles. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/s0713-2743(04)80020-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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19
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Fähnrich KA, Pravda M, Guilbault GG. Disposable amperometric immunosensor for the detection of polycyclic aromatic hydrocarbons (PAHs) using screen-printed electrodes. Biosens Bioelectron 2003; 18:73-82. [PMID: 12445447 DOI: 10.1016/s0956-5663(02)00112-4] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
An amperometric immunosensor for polycyclic aromatic hydrocarbons (PAHs) was developed. The immunosensor was based on disposable screen-printed carbon electrodes. The coating antigen used was phenanthrene-9-carboxaldehyde coupled to bovine serum albumin (BSA) via adipic acid dihydrazide. Antibodies were monoclonal mouse anti-phenanthrene. The enzyme alkaline phosphatase (AP) was used in combination with the substrate p-aminophenyl phosphate (pAPP) for detection at +300 mV (vs. Ag/AgCl). Various assay types were compared. Good results were achieved with an indirect co-exposure competition assay with a LOD of 0.8 ng/ml (800 ppt) and an IC(50) of 7.1 ng/ml (7.1 ppb) for phenanthrene. An indirect competition assay could detect phenanthrene with a LOD of 2 ng/ml (IC(50): 15 ng/ml) and an indirect displacement assay with a LOD of 2 ng/ml (IC(50): 11 ng/ml) at a 5 microl surface coating of 8.8 microg/ml phenanthrene-BSA conjugate. A coating concentration of 2.2 microg/ml allowed detection with a LOD of 0.25 ng/ml (250 ppt) with the indirect competition assay. The influence of the coating concentration on the sensor performance was investigated. Cross-reactivities were tested for 16 important PAHs. Anthracene and chrysene showed strong cross-reactivity, whereas benzo[g,h,i]perylene and dibenzo[a,h]anthracene showed no cross-reactivity.
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Affiliation(s)
- K A Fähnrich
- Department of Chemistry, University College Cork (UCC), Western Road, Cork, Ireland
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Rose A, Nistor C, Emnéus J, Pfeiffer D, Wollenberger U. GDH biosensor based off-line capillary immunoassay for alkylphenols and their ethoxylates. Biosens Bioelectron 2002; 17:1033-43. [PMID: 12392953 DOI: 10.1016/s0956-5663(02)00096-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The application of a quinoprotein glucose dehydrogenase modified thick-film sensor as label detector in a capillary immunoassay (CIA) for xenoestrogens is presented. The detection of the alkylphenols and their ethoxylates is based on the competition between the analyte and tracer molecules for the binding sites of anti-alkylphenol ethoxylate antibodies. This assay is performed off-line in small disposable PVC capillaries coated with immobilized antibodies. This format allows the combination of the assay with a small portable device potentially useful for on-site environmental monitoring. Beside high amplification the utilization of beta-galactosidase as enzyme label allows the direct combination with a GDH biosensor at optimal pH conditions. The bioelectrocatalytic properties of this biosensor offer an additional amplification and thus allow a very sensitive quantification of 4-aminophenol, generated by the beta-galactosidase. Detection limits of the analytes in the microg/l range were obtained, while other phenolics and surfactants showed no or very little cross reactivity.
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Affiliation(s)
- A Rose
- Analytical Biochemistry, Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Golm, Germany
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Fähnrich KA, Pravda M, Guilbault GG. IMMUNOCHEMICAL DETECTION OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHs). ANAL LETT 2002. [DOI: 10.1081/al-120006666] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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