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Li Y, Li Y, Lv J, Zhao Z, Sun G. Heterogeneous Fenton Degradation of Methyl Orange Using Fe–Al–Ce Bentonite As Catalyst. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422020303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wang Y, Gao Y, Chen L, Zhang H. Goethite as an efficient heterogeneous Fenton catalyst for the degradation of methyl orange. Catal Today 2015. [DOI: 10.1016/j.cattod.2015.01.012] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Knop D, Yarden O, Hadar Y. The ligninolytic peroxidases in the genus Pleurotus: divergence in activities, expression, and potential applications. Appl Microbiol Biotechnol 2014; 99:1025-38. [PMID: 25503316 DOI: 10.1007/s00253-014-6256-8] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 11/29/2022]
Abstract
Mushrooms of the genus Pleurotus are comprised of cultivated edible ligninolytic fungi with medicinal properties and a wide array of biotechnological and environmental applications. Like other white-rot fungi (WRF), they are able to grow on a variety of lignocellulosic biomass substrates and degrade both natural and anthropogenic aromatic compounds. This is due to the presence of the non-specific oxidative enzymatic systems, which are mainly consisted of lacasses, versatile peroxidases (VPs), and short manganese peroxidases (short-MnPs). Additional, less studied, peroxidase are dye-decolorizing peroxidases (DyPs) and heme-thiolate peroxidases (HTPs). During the past two decades, substantial information has accumulated concerning the biochemistry, structure and function of the Pleurotus ligninolytic peroxidases, which are considered to play a key role in many biodegradation processes. The production of these enzymes is dependent on growth media composition, pH, and temperature as well as the growth phase of the fungus. Mn(2+) concentration differentially affects the expression of the different genes. It also severs as a preferred substrate for these preoxidases. Recently, sequencing of the Pleurotus ostreatus genome was completed, and a comprehensive picture of the ligninolytic peroxidase gene family, consisting of three VPs and six short-MnPs, has been established. Similar enzymes were also discovered and studied in other Pleurotus species. In addition, progress has been made in the development of molecular tools for targeted gene replacement, RNAi-based gene silencing and overexpression of genes of interest. These advances increase the fundamental understanding of the ligninolytic system and provide the opportunity for harnessing the unique attributes of these WRF for applied purposes.
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Affiliation(s)
- Doriv Knop
- Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, 76100, Israel
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Mn²⁺-deficiency reveals a key role for the Pleurotus ostreatus versatile peroxidase (VP4) in oxidation of aromatic compounds. Appl Microbiol Biotechnol 2014; 98:6795-804. [PMID: 24737058 DOI: 10.1007/s00253-014-5689-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 03/10/2014] [Accepted: 03/11/2014] [Indexed: 10/25/2022]
Abstract
The manganese peroxidase gene family (mnps) is a part of the ligninolytic system of Pleurotus ostreatus. This gene family is comprised of nine members, mnp1-9, encoding short manganese peroxidases (short-MnPs) or versatile peroxidases (VPs). We show that unlike in Mn(2+)-amended glucose-peptone (GP) medium, where redundancy among mnps was reported, in Mn(2+)-deficient GP medium mnp4 [encoding versatile peroxidase isoenzyme 4 (VP4)] has a key and nonredundant function. The abundance of mnps transcripts at time points corresponding to the tropophase (active growth), early idiophase, and idiophase indicates that mnp4 is the predominantly expressed mnp gene and that its relative predominance is dependent on the age of the culture. In this medium, azo dye, Orange II (OII) decolorization occurs only during the idiophase and a Δmnp4 strain showed a drastic reduction in this decolorization. Three degradation metabolites were identified by liquid chromatography-mass spectroscopy (LC-MS), indicating both asymmetric and symmetric enzymatic cleavage of the azo-bond. In addition, the culture filtrate of Δmnp4 showed negligible values of oxidation capability of four typical VP substrates: Mn(2+), 2,6-dimethoxyphenol, phenol red, and Reactive Black 5 (RB5), compared to the wild-type strain PC9. We concluded that under Mn(2+)-deficient GP culture, VP4 (encoded by mnp4) is the main active ligninolytic enzyme able to oxidize Mn(2+) as well as high and low redox potential aromatic substrate, including dyes. Furthermore, other VPs/MnPs do not compensate for the lack of VP4 activity.
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López-Montes AM, Dupont AL, Desmazières B, Lavédrine B. Identification of synthetic dyes in early colour photographs using capillary electrophoresis and electrospray ionisation–mass spectrometry. Talanta 2013; 114:217-26. [DOI: 10.1016/j.talanta.2013.04.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 03/29/2013] [Accepted: 04/08/2013] [Indexed: 10/26/2022]
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Electrically enhanced liquid-phase microextraction of three textile azo dyes from wastewater and plant samples. J Sep Sci 2013; 36:3256-63. [DOI: 10.1002/jssc.201300546] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 06/27/2013] [Accepted: 07/15/2013] [Indexed: 11/07/2022]
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Wang X, Xiong Y, Xie T, Sharma VK, Tu Y, Yang J, Tian S, He C. Separation and determination of degradation products of acid orange 7 by capillary electrophoresis/capacitively coupled contactless conductivity detector. Talanta 2013; 111:54-61. [DOI: 10.1016/j.talanta.2013.03.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 03/09/2013] [Accepted: 03/14/2013] [Indexed: 10/27/2022]
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Abstract
This document contains recommendations for terminology in mass spectrometry.
Development of standard terms dates back to 1974 when the IUPAC Commission on
Analytical Nomenclature issued recommendations on mass spectrometry terms and
definitions. In 1978, the IUPAC Commission on Molecular Structure and
Spectroscopy updated and extended the recommendations and made further
recommendations regarding symbols, acronyms, and abbreviations. The IUPAC
Physical Chemistry Division Commission on Molecular Structure and Spectroscopy’s
Subcommittee on Mass Spectroscopy revised the recommended terms in 1991 and
appended terms relating to vacuum technology. Some additional terms related to
tandem mass spectrometry were added in 1993 and accelerator mass spectrometry in
1994. Owing to the rapid expansion of the field in the intervening years,
particularly in mass spectrometry of biomolecules, a further revision of the
recommendations has become necessary. This document contains a comprehensive
revision of mass spectrometry terminology that represents the current consensus
of the mass spectrometry community.
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Copaciu F, Coman V, Simedru D, Beldean-Galea S, Opriş O, Ristoiu D. DETERMINATION OF TWO TEXTILE DYES IN WASTEWATER BY SOLID PHASE EXTRACTION AND LIQUID CHROMATOGRAPHY/ELECTROSPRAY IONIZATION TANDEM MASS SPECTROMETRY ANALYSIS. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.695312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Florina Copaciu
- a Faculty of Environmental Science and Engineering , Babeş-Bolyai University , Cluj-Napoca , Romania
| | - Virginia Coman
- b “Raluca Ripan” Institute for Research in Chemistry , Babeş-Bolyai University , Cluj-Napoca , Romania
| | - Dorina Simedru
- c INCDO-INOE 2000, Research Institute for Analytical Instrumentation ICIA , Cluj-Napoca , Romania
| | - Simion Beldean-Galea
- a Faculty of Environmental Science and Engineering , Babeş-Bolyai University , Cluj-Napoca , Romania
| | - Ocsana Opriş
- a Faculty of Environmental Science and Engineering , Babeş-Bolyai University , Cluj-Napoca , Romania
| | - Dumitru Ristoiu
- a Faculty of Environmental Science and Engineering , Babeş-Bolyai University , Cluj-Napoca , Romania
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Clarke CE, Kielar F, Johnson KL. The oxidation of acid azo dye AY 36 by a manganese oxide containing mine waste. JOURNAL OF HAZARDOUS MATERIALS 2013; 246-247:310-318. [PMID: 23333488 DOI: 10.1016/j.jhazmat.2012.12.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 11/27/2012] [Accepted: 12/10/2012] [Indexed: 06/01/2023]
Abstract
The oxidative breakdown of acid azo dye acid yellow 36 (AY 36) by a Mn oxide containing mine tailings is demonstrated. The oxidation reaction is pH dependent with the rate of decolorization increasing with decreasing pH. The oxidation reaction mechanism is initiated at the amino moiety and proceeds via successive, one electron transfers from the dye to the Mn oxide minerals. The reaction pathway involves the formation of a number of colorless intermediate products, some of which hydrolyze in a Mn oxide-independent step. Decolorization of the dye is rapid and is observed before the cleavage of the azo-bond, which is a slower process. The terminal oxidation products were observed to be p-benzoquinone and 3-hydroxybenzenesulfonate. The reaction order of the initial decolorization was determined to be pseudo fractional order with respect to pH and pseudo first order with respect to dye concentration and Mn tailings' surface area.
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Affiliation(s)
- Catherine E Clarke
- Department of Soil Science, Stellenbosch University, P/Bag X1, Matieland 7602, South Africa.
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Xue H, Xing Y, Yin Y, Zhang T, Zhang B, Zhang Y, Song P, Tian X, Xu Y, Wang P, Meng M, Xi R. Application of an enzyme immunoassay for the quantitative determination of azo dye (Orange II) in food products. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:1840-8. [DOI: 10.1080/19440049.2012.713029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Zhao SS, Zhong X, Tie C, Chen DD. Capillary electrophoresis-mass spectrometry for analysis of complex samples. Proteomics 2012; 12:2991-3012. [DOI: 10.1002/pmic.201200221] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 07/10/2012] [Accepted: 07/18/2012] [Indexed: 12/20/2022]
Affiliation(s)
- Shuai Sherry Zhao
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - Xuefei Zhong
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - Cai Tie
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - David D.Y. Chen
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
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Jain K, Shah V, Chapla D, Madamwar D. Decolorization and degradation of azo dye--Reactive Violet 5R by an acclimatized indigenous bacterial mixed cultures-SB4 isolated from anthropogenic dye contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2012; 213-214:378-386. [PMID: 22370200 DOI: 10.1016/j.jhazmat.2012.02.010] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 02/02/2012] [Accepted: 02/05/2012] [Indexed: 05/31/2023]
Abstract
Azo dyes an important group of synthetic compounds are recalcitrant xenobiotics. Conventional technologies are unsuccessful to efficiently remove these compounds from contaminated environment. However, consorted metabolic functioning of innate microbial communities is a promising approach for bioremediation of polluted environment. Bacterial mixed cultures SB4 proficient in complete decolorization of azo dye - Reactive Violet 5R was developed through culture enrichment technique. Bacterial community composition based on 16S rRNA gene analysis revealed that mixed cultures SB4 composed of six bacterial strains namely Bacillus sp. V1DMK, Lysinibacillus sp. V3DMK, Bacillus sp. V5DMK, Bacillus sp. V7DMK, Ochrobacterium sp. V10DMK, Bacillus sp. V12DMK. SB4 grew well in minimal medium containing low amount of glucose and yeast extract (YE) (1 g/L) and decolorized 200mg/L of RV5 within 18 h under static condition. Mixed cultures SB4 decolorized wide range of azo dyes and maximum rate of decolorization was observed at 37 °C and pH 7.0. Decolorization efficiency was found to be unaltered under high RV5 and salt concentration where 1500 mg/L of RV5 was decolorized in presence of 20 g/L NaCl. We propose the asymmetric cleavage of RV5 and Fourier transformed infrared (FTIR), NMR and gas chromatography-mass spectrometry (GC-MS) confirmed the formation of four intermediatory compounds 1-diazo-2-naphthol, 4-hydroxybenzenesulphonic acid, 2-naphthol and benzenesulphonic acid.
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Affiliation(s)
- Kunal Jain
- Environmental Genomics and Proteomics Lab, BRD School of Biosciences, Sardar Patel Maidan, Vadtal Road, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar-388 120, Gujarat, India.
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NOLTE THIES, ANDERSSON JANT. Capillary Electrophoretic Methods for the Separation of Polycyclic Aromatic Compounds. Polycycl Aromat Compd 2011. [DOI: 10.1080/10406638.2011.604664] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Effects of Orange II and Sudan III azo dyes and their metabolites on Staphylococcus aureus. J Ind Microbiol Biotechnol 2011; 38:1729-38. [PMID: 21451978 DOI: 10.1007/s10295-011-0962-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 03/12/2011] [Indexed: 12/25/2022]
Abstract
Azo dyes are widely used in the plastic, paper, cosmetics, food, and pharmaceutical industries. Some metabolites of these dyes are potentially genotoxic. The toxic effects of azo dyes and their potential reduction metabolites on Staphylococcus aureus ATCC BAA 1556 were studied. When the cultures were incubated with 6, 18, and 36 μg/ml of Orange II and Sudan III for 48 h, 76.3, 68.5, and 61.7% of Orange II and 97.8, 93.9, and 75.8% of Sudan III were reduced by the bacterium, respectively. In the presence of 36 μg/ml Sudan III, the cell viability of the bacterium decreased to 61.9% after 48 h of incubation, whereas the cell viability of the control culture without the dye was 71.5%. Moreover, the optical density of the bacterial cultures at 10 h decreased from 0.74 to 0.55, indicating that Sudan III is able to inhibit growth of the bacterium. However, Orange II had no significant effects on either cell growth or cell viability of the bacterium at the tested concentrations. 1-Amino-2-naphthol, a metabolite common to Orange II and Sudan III, was capable of inhibiting cell growth of the bacterium at 1 μg/ml and completely stopped bacterial cell growth at 24-48 μg/ml. On the other hand, the other metabolites of Orange II and Sudan III, namely sulfanilic acid, p-phenylenediamine, and aniline, showed no significant effects on cell growth. p-Phenylenediamine exhibited a synergistic effect with 1-amino-2-naphthol on cell growth inhibition. All of the dye metabolites had no significant effects on cell viability of the bacterium.
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Li D, Wang Z, Wang L, Xu X, Zhang H. Ultrasonic Extraction Coupled with Capillary Electrophoresis for the Determination of Azo Dyes in Lipsticks Using Ionic Liquid as Dynamic Coating and Background Electrolyte. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190043] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Glossary of terms for separations coupled to mass spectrometry. J Chromatogr A 2010; 1217:3922-8. [DOI: 10.1016/j.chroma.2010.03.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Revised: 02/23/2010] [Accepted: 03/12/2010] [Indexed: 11/21/2022]
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Rodríguez Robledo V, Smyth WF. The application of CE-MS in the trace analysis of environmental pollutants and food contaminants. Electrophoresis 2009; 30:1647-60. [PMID: 19378285 DOI: 10.1002/elps.200800651] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this review, selected applications of CE-MS in recent years have been highlighted for the separation, detection and determination of environmental pollutants and food contaminants in selected samples. Trace analysis by CE-MS of analytes such as low molecular mass amines, nitroaromatics, alkylphosphonic acids, azo dyes, antidepressants, and antibiotic drugs, among others, in air, sediment and water samples have been reviewed. The CE-MS analysis of pesticides such as triazolopyrimidine sulphoanilides, different types of antibiotics (sulphonamides, beta-lactones, quinolones and tetracyclines) and other exogenous compounds such as acrylamide and toxic oligopeptides in food samples has also been reviewed. The review gives details on the fragmentations, where available, that the ionic species exhibit in-source and in ion trap, triple quadrupole and ToF MS analysers. A critical evaluation is also given of these recent CE-MS analytical methods for the separation, detection and determination of trace levels of such pollutants and contaminants with analytical information on the treatment of the samples, CE separation conditions, linearity ranges, LODs and recoveries from the different matrices presented.
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Affiliation(s)
- Virginia Rodríguez Robledo
- Departamento de Química Analítica y Tecnología de los Alimentos, Facultad de Ciencias Químicas, University of Castilla-La Mancha, Cuidad Real, Spain
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Yao YT, Song J, Yu J, Wang XF, Hou F, Zhang AL, Liu Y, Han J, Xie MX. Differentiation and dating of red ink entries of seals on documents by HPLC and GC/MS. J Sep Sci 2009; 32:2919-27. [DOI: 10.1002/jssc.200900110] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lu Y, Phillips DR, Lu L, Hardin IR. Determination of the degradation products of selected sulfonated phenylazonaphthol dyes treated by white rot fungus Pleurotus ostreatus by capillary electrophoresis coupled with electrospray ionization ion trap mass spectrometry. J Chromatogr A 2008; 1208:223-31. [PMID: 18778834 DOI: 10.1016/j.chroma.2008.08.080] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2007] [Revised: 08/13/2008] [Accepted: 08/15/2008] [Indexed: 10/21/2022]
Abstract
The removal of water-soluble sulphonated phenylazonaphthol dye effluents generated by textile industries is an important issue in wastewater treatment. Microbial treatment of environmental pollutants including dyes, with white rot fungi has received wide attention as a potential alternative for conventional methods in wastewater treatment. Three sulphonated phenylazonaphthol dyes with similar molecular structures Acid Orange 7, Acid Orange 8 and Mordant Violet 5 were selected and degraded by the white rot fungus Pleurotus ostreatus. Chemical instrumental analysis methods such as high-performance liquid chromatography (HPLC) and capillary electrophoresis combined with electrospray ionization mass spectrometry (CE-ESI-MS) were used to identify the degraded dyes. Mordant Violet 5 had two degradation pathways when degraded by P. ostreatus. The first degradation pathway for Mordant Violet 5 was for trans structure and the cis-Mordant Violet 5 followed the second pathway. Acid Orange 8 and Acid Orange 7 had the same degradation mechanism as the first degradation mechanism for Mordant Violet 5, that is cleavage of azo bond at the naphthalene ring side where benzenesulfonic acid and 1,2-naphthoquinone are formed.
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Affiliation(s)
- Yiping Lu
- Department of Textiles, Merchandising, & Interiors, University of Georgia, Athens, GA 30602-3622, USA.
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