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Adhihetty PK, Halder S, Abu UO, Fu XA, Nantz MH. Cesium ion-guided detection of trichloroethylene in air. Talanta 2024; 276:126197. [PMID: 38728800 PMCID: PMC11202406 DOI: 10.1016/j.talanta.2024.126197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/28/2024] [Accepted: 04/30/2024] [Indexed: 05/12/2024]
Abstract
Whereas the close associations of cesium ion with organochlorine compounds have been previously documented, the present report is the first attempt to exploit these interactions to create a trichloroethylene (TCE)-selective sensor. Gold monolayer-protected clusters peripherally functionalized with Cs+ ions were used to prepare a chemiresistance film on MEMS-fabricated interdigitated electrodes. Vapor sensing properties of the cesium-rich chemiresistor were determined using a panel of chlorinated hydrocarbons including TCE as well as polar and non-polar VOCs for comparison. The sensor was selective and highly sensitive toward VOCs containing a 1,2-dichloro group at concentrations as low as 0.1 ppm. The results suggest the key interaction contributing to sensor response is a bidentate, metallocycle-like coordination of the 1,2-dichloro group to the cesium cations at the sensor surface.
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Affiliation(s)
| | - Sujoy Halder
- Department of Chemical Engineering, Louisville, KY, 40292, USA
| | - Usman O Abu
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, KY, 40292, USA
| | - Xiao-An Fu
- Department of Chemical Engineering, Louisville, KY, 40292, USA.
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An Overview on Methanotrophs and the Role of Methylosinus trichosporium OB3b for Biotechnological Applications. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-022-0046-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Adsorption Studies of Waterborne Trihalomethanes Using Modified Polysaccharide Adsorbents. Molecules 2021; 26:molecules26051431. [PMID: 33800798 PMCID: PMC7961458 DOI: 10.3390/molecules26051431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/24/2021] [Accepted: 03/02/2021] [Indexed: 12/04/2022] Open
Abstract
The adsorptive removal of trihalomethanes (THMs) from spiked water samples was evaluated with a series of modified polysaccharide adsorbents that contain β-cylodextrin or chitosan. The uptake properties of these biodegradable polymer adsorbents were evaluated with a mixture of THMs in aqueous solution. Gas chromatography employing a direct aqueous injection (DAI) method with electrolytic conductivity detection enabled quantification of THMs in water at 295 K and at pH 6.5. The adsorption isotherms for the polymer-THMs was evaluated using the Sips model, where the monolayer adsorption capacities ranged between 0.04 and 1.07 mmol THMs/g for respective component THMs. Unique adsorption characteristics were observed that vary according to the polymer structure, composition, and surface chemical properties. The modified polysaccharide adsorbents display variable molecular recognition and selectivity toward component THMs in the mixed systems according to the molecular size and polarizability of the adsorbates.
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García-Bellido J, Freije-Carrelo L, Moldovan M, Encinar JR. Recent advances in GC-ICP-MS: Focus on the current and future impact of MS/MS technology. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115963] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Capoun T, Krykorkova J. Internal Standards for Quantitative Analysis of Chemical Warfare Agents by the GC/MS Method: Nerve Agents. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:8857210. [PMID: 32850173 PMCID: PMC7439166 DOI: 10.1155/2020/8857210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
General conditions and requirements for an internal standard useful in the determination of chemical warfare agents (CWAs) by the method of gas chromatography coupled with mass detection (GC/MS) were defined. The determination is based on a GC/MS analysis of a mixture of a CWA with an internal standard, conversion of the TIC chromatogram to a chromatogram extracted at a particular m/z ratio, and calculation of the CWA concentration from the internal standard concentration, response factor, and chromatographic peak areas. Available internal standards were identified, and they were verified for seven organophosphorus nerve-paralysing agents. Corresponding response factors were determined as a ratio of gradients of the linear functions of the peak area and compound concentration. Linearity, repeatability, and accuracy of the measurements were evaluated. The determination can be performed on all GC/MS systems of the Fire Rescue Service of the Czech Republic (FRS), where no CWA standards are available.
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Affiliation(s)
- Tomas Capoun
- Ministry of Interior—Directorate General of the Fire Rescue Service CR, Population Protection Institute, Na Luzci 204, Lazne Bohdanec 533 41, Czech Republic
| | - Jana Krykorkova
- Ministry of Interior—Directorate General of the Fire Rescue Service CR, Population Protection Institute, Na Luzci 204, Lazne Bohdanec 533 41, Czech Republic
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Worawit C, Alahmad W, Miró M, Varanusupakul P. Combining graphite with hollow-fiber liquid-phase microextraction for improving the extraction efficiency of relatively polar organic compounds. Talanta 2020; 215:120902. [PMID: 32312447 DOI: 10.1016/j.talanta.2020.120902] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/28/2020] [Accepted: 03/05/2020] [Indexed: 12/01/2022]
Abstract
In this study, we have developed a simple and effective hybrid extraction method based on the incorporation of raw carbon nanosorbents and octanol in the pores of a hollow-fiber membrane for improving the extraction efficiency of relatively polar organic compounds. Trihalomethanes (THMs) were used as model analytes. Three types of carbon nanosorbents (graphite, graphene, and multi-walled carbon nanotubes) were studied. The carbon sorbent incorporating membrane was used in a two-phase mode liquid-phase microextraction, with 1-octanol as the acceptor solution. Using a graphite-reinforced hollow-fiber membrane and an extraction time of 10 min, enrichment factors of 40-71 were obtained for trichloromethane, bromodichloromethane, bromoform, and chlorodibromomethane. Linear working ranges of 0.2-100 μg L-1 and limits of detection ranging from 0.01 μg L-1 (for CHCl2Br and CHClBr2) to 0.1 μg L-1 (for CHCl3) were achieved. The minimum detectable concentrations were far below the maximum concentration levels (60-200 μg L-1) set by the WHO for drinking water. The carbon-sorbent-reinforced hollow-fiber liquid-phase microextraction afforded higher extraction efficiency and shorter extraction time compared with conventional hollow-fiber liquid-phase microextraction. Finally, the method was applied to the analysis of real water samples, such as drinking water, tap water, and swimming pool water samples.
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Affiliation(s)
- Chanatda Worawit
- Chemical Approaches for Food Applications Research Group, Faculty of Science, Chulalongkorn University, Bangkok, Thailand; Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Rd., Pathumwan, Bangkok, 10330, Thailand
| | - Waleed Alahmad
- Chemical Approaches for Food Applications Research Group, Faculty of Science, Chulalongkorn University, Bangkok, Thailand; Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Rd., Pathumwan, Bangkok, 10330, Thailand
| | - Manuel Miró
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands, Carretera de Valldemossa, Km 7.5, 07122, Palma de Mallorca, Spain
| | - Pakorn Varanusupakul
- Chemical Approaches for Food Applications Research Group, Faculty of Science, Chulalongkorn University, Bangkok, Thailand; Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Rd., Pathumwan, Bangkok, 10330, Thailand.
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de Lima E Silva MR, Feitosa de Lima Gomes PC, Okada DY, Sakamoto IK, Varesche MBA. The use of non-adapted anaerobic consortium in batch reactors enable to couple polychlorinated biphenyl degradation and community adaptation. ENVIRONMENTAL TECHNOLOGY 2020; 41:1766-1779. [PMID: 30457445 DOI: 10.1080/09593330.2018.1547794] [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: 05/07/2018] [Accepted: 11/03/2018] [Indexed: 06/09/2023]
Abstract
The removal of polychlorinated biphenyls (PCBs) and PCB biosorption was investigated in anaerobic batch reactors with non-adapted sludge fed with 1.5 mg L-1 of six PCB congener (PCB 10, 28, 52, 153, 138 and 180), mineral medium and co-substrates. PCBs were analyzed by gas chromatography using headspace solid-phase microextraction (HS-SPME). In the methanogenic reactor the methane production, COD (Carbon Organic Demand) removal (90% of initial 2292.60 mg L-1) and consumption of volatile organic acids were verified. Nevertheless, anaerobic activity was not observed in the reactor with inactivated biomass and biosorption range of 38% to 89% was measured for distinct PCB congeners in this reactor. The PCB removal was calculated from the PCB bioavailable (not biosorbed) and reached 76% of total PCBs. The selection of some representatives of the Thermotogaceae family, Sedimentibacter and Pseudomonas at 101 days of operation in the methanogenic reactor was correlated with PCB degradation. In addition, the various removal rates for each PCB congener indicate that the removal depends on bioavailability. The selection of the former non-adapted microbiota in the methanogenic reactor combined with PCB degradation occurred at 101 days. These results allow to assert that it is possible to simultaneously couple PCB degradation and community selection, without the previous adaptation step, which is a time-consuming stage.
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Affiliation(s)
- Mara Rúbia de Lima E Silva
- Department of Hydraulic and Sanitation, School of Engineering of São Carlos, USP-EESC, Sao Carlos, Brazil
| | | | | | - Isabel Kimiko Sakamoto
- Department of Hydraulic and Sanitation, School of Engineering of São Carlos, USP-EESC, Sao Carlos, Brazil
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Kinani A, Kinani S, Bouchonnet S. Formation and determination of organohalogen by-products in water – Part II. Sample preparation techniques for analytical approaches. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Armenta S, de la Guardia M. Green chromatography for the analysis of foods of animal origin. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.06.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Li T, Guo Y, Hu H, Zhang X, Jin Y, Zhang X, Zhang Y. Determination of volatile chlorinated hydrocarbons in water samples by static headspace gas chromatography with electron capture detection. J Sep Sci 2016; 39:358-66. [PMID: 26805957 DOI: 10.1002/jssc.201500771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 10/13/2015] [Accepted: 10/15/2015] [Indexed: 11/11/2022]
Abstract
A simple, efficient, solvent-free, and commercial readily available approach for determination of five volatile chlorinated hydrocarbons in water samples using the static headspace sampling and gas chromatography with electron capture detection has been described. The proposed static headspace sampling method was initially optimized and the optimum experimental conditions found were 10 mL water sample containing 20% w/v sodium chloride placed in a 20 mL vial and stirred at 50ºC for 20 min. The linearity of the method was in the range of 1.2-240 μg/L for dichloromethane, 0.2-40 μg/L for trichloromethane, 0.005-1 μg/L for perchloromethane, 0.025-5 μg/L for trichloroethylene, and 0.01-2 μg/L for perchloroethylene, with coefficients of determination ranging between 0.9979 and 0.9990. The limits of detection were in the low μg/L level, ranging between 0.001 and 0.3 μg/L. The relative recoveries of spiked five volatile chlorinated hydrocarbons with external calibration method at different concentration levels in pure, tap, sea water of Jiaojiang Estuary, and sea water of waters of Xiaomendao were in the range of 91-116, 96-105, 86-112, and 80-111%, respectively, and with relative standard deviations of 1.9-3.6, 2.3-3.5, 1.5-2.7, and 2.3-3.7% (n = 5), respectively. The performance of the proposed method was compared with traditional liquid-liquid extraction on the real water samples (i.e., pure, tap, and sea water, etc.) and comparable efficiencies were obtained. It is concluded that this method can be successfully applied for the determination of volatile chlorinated hydrocarbons in different water samples.
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Affiliation(s)
- Tiejun Li
- Key Laboratory of Mariculture and Enhancement of Zhejiang Province, Marine Fishery Institute of Zhejiang Province, Zhoushan, China
| | - Yuanming Guo
- Key Laboratory of Mariculture and Enhancement of Zhejiang Province, Marine Fishery Institute of Zhejiang Province, Zhoushan, China
| | - Hongmei Hu
- Key Laboratory of Mariculture and Enhancement of Zhejiang Province, Marine Fishery Institute of Zhejiang Province, Zhoushan, China
| | - Xiaoning Zhang
- Department of Mathematics, Sciences & Technology, Paine College, Augusta, Georgia, United States
| | - Yanjian Jin
- Key Laboratory of Mariculture and Enhancement of Zhejiang Province, Marine Fishery Institute of Zhejiang Province, Zhoushan, China
| | - Xiaojun Zhang
- Key Laboratory of Mariculture and Enhancement of Zhejiang Province, Marine Fishery Institute of Zhejiang Province, Zhoushan, China
| | - Yurong Zhang
- Key Laboratory of Mariculture and Enhancement of Zhejiang Province, Marine Fishery Institute of Zhejiang Province, Zhoushan, China
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Wu JY, Yu CH, Wen JJ, Chang CL, Leung MK. Pyrrolo-[3,2-b]pyrroles for Photochromic Analysis of Halocarbons. Anal Chem 2015; 88:1195-201. [DOI: 10.1021/acs.analchem.5b03374] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jia-Ying Wu
- Institute
of Polymer Science and Engineering and ‡Department of Chemistry, National Taiwan University, Taipei 106, Taiwan ROC
| | - Cheng-Han Yu
- Institute
of Polymer Science and Engineering and ‡Department of Chemistry, National Taiwan University, Taipei 106, Taiwan ROC
| | - Jung-Jung Wen
- Institute
of Polymer Science and Engineering and ‡Department of Chemistry, National Taiwan University, Taipei 106, Taiwan ROC
| | - Chiou-Ling Chang
- Institute
of Polymer Science and Engineering and ‡Department of Chemistry, National Taiwan University, Taipei 106, Taiwan ROC
| | - Man-kit Leung
- Institute
of Polymer Science and Engineering and ‡Department of Chemistry, National Taiwan University, Taipei 106, Taiwan ROC
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Shaaban H, Górecki T. Current trends in green liquid chromatography for the analysis of pharmaceutically active compounds in the environmental water compartments. Talanta 2015; 132:739-52. [DOI: 10.1016/j.talanta.2014.09.050] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 09/24/2014] [Accepted: 09/29/2014] [Indexed: 10/24/2022]
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Selection of mineralised methods to analyse different types of matrices. Applying the Box-Cox transformation to chemometrics study the coexistence of heavy metals in natural samples. OPEN CHEM 2013. [DOI: 10.2478/s11532-012-0196-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractChemometric methods are mostly used to optimise technological processes and analytical procedures. Applying chemometric methods in environmental tests may reveal relationships among chemical elements in biomes. Cluster analysis and principal component analysis (PCA) are very helpful for detecting relationships among studied parameters. However, large amounts of data may have a negative effect on this analysis and can lead to misinterpretation of the results. This situation was observed when the samples, taken from several places in the Silesian Province, were used to test the relationship between heavy metals contained in various environmental matrices. Samples were collected from a small area and were characterised by a single biome (pine forest) because direct interpretation of PCA and CA was insufficient to correctly describe such data. The solution to this problem was the use of the Box-Cox transformation, which is a rapid method to normalise input data. The application of chemometric tools enabled the relationships between sampling sites (industrialised and non-industrialised) to be examined and was very helpful in illustrating the relationship between the methodologies of plant preparation samples. Furthermore, the results may indicate the need for further data analysis. The tools described in this paper can be useful for choosing the optimal mineralisation method according to the type of test matrix.
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Tobiszewski M, Tsakovski S, Simeonov V, Namieśnik J. Chlorinated solvents in a petrochemical wastewater treatment plant: an assessment of their removal using self-organising maps. CHEMOSPHERE 2012; 87:962-968. [PMID: 22356856 DOI: 10.1016/j.chemosphere.2012.01.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Revised: 01/30/2012] [Accepted: 01/31/2012] [Indexed: 05/31/2023]
Abstract
The self-organising map approach was used to assess the efficiency of chlorinated solvent removal from petrochemical wastewater in a refinery wastewater treatment plant. Chlorinated solvents and inorganic anions (11 variables) were determined in 72 wastewater samples, collected from three different purification streams. The classification of variables identified technical solvents, brine from oil desalting and runoff sulphates as pollution sources in the refinery, affecting the quality of wastewater treatment plant influent. The classification of samples revealed the formation of five clusters: the first three clusters contained samples collected from the drainage water, process water and oiled rainwater treatment streams. The fourth cluster consisted mainly of samples collected after biological treatment, and the fifth one of samples collected after an unusual event. SOM analysis showed that the biological treatment step significantly reduced concentrations of chlorinated solvents in wastewater.
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Affiliation(s)
- Marek Tobiszewski
- Department of Analytical Chemistry, Gdańsk University of Technology, 11/12 G. Narutowicza St., 80-233 Gdańsk, Poland.
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Tobiszewski M, Namieśnik J. Direct chromatographic methods in the context of green analytical chemistry. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.02.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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