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Glumac N, Momčilović M, Kramberger I, Štraus D, Sakač N, Kovač-Andrić E, Đurin B, Kraševac Sakač M, Đambić K, Jozanović M. Potentiometric Surfactant Sensor with a Pt-Doped Acid-Activated Multi-Walled Carbon Nanotube-Based Ionophore Nanocomposite. SENSORS (BASEL, SWITZERLAND) 2024; 24:2388. [PMID: 38676005 PMCID: PMC11054714 DOI: 10.3390/s24082388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 03/27/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024]
Abstract
Two new surfactant sensors were developed by synthesizing Pt-doped acid-activated multi-walled carbon nanotubes (Pt@MWCNTs). Two different ionophores using Pt@MWCNTs, a new plasticizer, and (a) cationic surfactant 1,3-dihexadecyl-1H-benzo[d]imidazol-3-ium-DHBI (Pt@MWCNT-DHBI ionophore) and (b) anionic surfactant dodecylbenzenesulfonate-DBS (Pt@MWCNT-DBS ionophore) composites were successfully synthesized and characterized. Both surfactant sensors showed a response to anionic surfactants (dodecylsulfate (SDS) and DBS) and cationic surfactants (cetylpyridinium chloride (CPC) and hexadecyltrimethylammonium bromide (CTAB)). The Pt@MWCNT-DBS sensor showed lower sensitivity than expected with the sub-Nernstian response of ≈23 mV/decade of activity for CPC and CTAB and ≈33 mV/decade of activity for SDS and DBS. The Pt@MWCNT-DHBI surfactant sensor had superior response properties, including a Nernstian response to SDS (59.1 mV/decade) and a near-Nernstian response to DBS (57.5 mV/decade), with linear response regions for both anionic surfactants down to ≈2 × 10-6 M. The Pt@MWCNT-DHBI was also useful in critical micellar concentration (CMC) detection. Common anions showed very low interferences with the sensor. The sensor was successfully employed for the potentiometric titration of a technical grade cationic surfactant with good recoveries. The content of cationic surfactants was measured in six samples of complex commercial detergents. The Pt@MWCNT-DHBI surfactant sensor showed good agreement with the ISE surfactant sensor and classical two-phase titration and could be used as an analytical tool in quality control.
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Affiliation(s)
- Nada Glumac
- Međimurske Vode D.O.O., 40000 Čakovec, Croatia;
| | - Milan Momčilović
- Faculty of Sciences and Mathematics, University of Niš, 18000 Niš, Serbia;
| | - Iztok Kramberger
- Faculty of Electrical Engineering and Computer Science, University of Maribor, 2000 Maribor, Slovenia; (I.K.); (D.Š.)
| | - Darko Štraus
- Faculty of Electrical Engineering and Computer Science, University of Maribor, 2000 Maribor, Slovenia; (I.K.); (D.Š.)
| | - Nikola Sakač
- Faculty of Geotechnical Engineering, University of Zagreb, 42000 Varaždin, Croatia
| | - Elvira Kovač-Andrić
- Department of Chemistry, University of Osijek, 31000 Osijek, Croatia; (E.K.-A.); (K.Đ.)
| | - Bojan Đurin
- Department of Civil Engineering, University North, 42000 Varaždin, Croatia;
| | - Marija Kraševac Sakač
- Faculty of Chemical Engineering and Technology, University of Zagreb, 10000 Zagreb, Croatia;
| | - Kristina Đambić
- Department of Chemistry, University of Osijek, 31000 Osijek, Croatia; (E.K.-A.); (K.Đ.)
| | - Marija Jozanović
- Department of Chemistry, University of Osijek, 31000 Osijek, Croatia; (E.K.-A.); (K.Đ.)
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2
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Pascale R, Acquavia MA, Onzo A, Cataldi TRI, Calvano CD, Bianco G. Analysis of surfactants by mass spectrometry: Coming to grips with their diversity. MASS SPECTROMETRY REVIEWS 2021. [PMID: 34570373 DOI: 10.1002/mas.21735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 09/15/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Surfactants are surface-active agents widely used in numerous applications in our daily lives as personal care products, domestic, and industrial detergents. To determine complex mixtures of surfactants and their degradation products, unselective and rather insensitive methods, based on colorimetric and complexometric analyses are no longer employable. Analytical methodologies able to determine low concentration levels of surfactants and closely related compounds in complex matrices are required. The recent introduction of robust, sensitive, and selective mass spectrometry (MS) techniques has led to the rapid expansion of the surfactant research field including complex mixtures of isomers, oligomers, and homologues of surfactants as well as their chemically and biodegradation products at trace levels. In this review, emphasis is given to the state-of-the-art MS-based analysis of surfactants and their degradation products with an overview of the current research landscape from traditional methods involving hyphenate techniques (gas chromatography-MS and liquid chromatography-MS) to the most innovative approaches, based on high-resolution MS. Finally, we outline a detailed explanation on the utilization of MS for mechanistic purposes, such as the study of micelle formation in different solvents.
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Affiliation(s)
| | - Maria A Acquavia
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
- ALMAGISI S.r.l Corso Italia, Bolzano, Italy
| | - Alberto Onzo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Tommaso R I Cataldi
- Università degli Studi di Bari Aldo Moro, Bari, Italy
- Dipartimento di Chimica, Bari, Italy
| | | | - Giuliana Bianco
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
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3
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O'Neill JM, Johnson CM, Wesdemiotis C. Multidimensional Mass Spectrometry of Multicomponent Nonionic Surfactant Blends. Anal Chem 2021; 93:12090-12095. [PMID: 34431663 DOI: 10.1021/acs.analchem.1c02551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ultraperformance liquid chromatography (UPLC) and ion mobility (IM) spectrometry were interfaced with mass spectrometry (MS) and tandem mass spectrometry (MS/MS) to characterize a complex nonionic surfactant mixture. The surfactant was composed of a glycerol core, functionalized with poly(ethylene oxide) units (PEOn) that were partially esterified by caprylic and/or capric acid. Reversed-phase UPLC classified the blend based on polarity into four groups of eluates, corresponding to compounds with zero, one, two, or three fatty acid residues. Additional separation within each eluate group was achieved according to the length of the fatty acid chains. Coeluting molecules of similar polarity were dispersed in the gas phase by their collision cross section in the IM dimension. Performed in series, UPLC and IM allowed for the separation and detection of several isomeric and isobaric blend constituents, thereby enabling their isolation for conclusive MS/MS analysis to confirm or elucidate their primary structures and architectures (overall four-dimensional, 4D, characterization).
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Affiliation(s)
- Jason M O'Neill
- Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Charles M Johnson
- Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Chrys Wesdemiotis
- Department of Chemistry, The University of Akron, Akron, Ohio 44325, United States
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4
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Mazur DM, Latkin TB, Kosyakov DS, Kozhevnikov AY, Ul'yanovskii NV, Kirilov AG, Lebedev AT. Arctic snow pollution: A GC-HRMS case study of Franz Joseph Land archipelago. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114885. [PMID: 32497945 DOI: 10.1016/j.envpol.2020.114885] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/10/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
Anthropogenic pollution of the Arctic atmosphere is of great interest due to the vulnerability of the Arctic ecosystems, as well as the processes of global transport and accumulation of atmospheric aerosols at high latitudes under conditions of cold climate. The present work throws light upon chemical composition of Arctic snow as a natural deposition matrix for atmospheric semi-volatile pollutants taken from the northernmost Arctic archipelago - Franz Josef Land, which is least affected by local sources of pollution and being a unique unstudied environmental object. The used methodology involved the liquid-liquid extraction of snow samples with dichloromethane and combination of targeted and non-targeted analyses of semi-volatile organic compounds with comprehensive two-dimensional gas chromatography - high-resolution mass spectrometry. While almost none of the known priority pollutants (except three dialkylphthalates) were identified in the studied samples, non-targeted screening revealed a specific class of biomass burning biomarkers - fatty amides with oleamide being the major component among them. Some peculiar organic pollutants (N,N-dimethylcyclohexylamine and N,N-dimethylbenzylamine) were identified in few samples. First results on the semi volatile pollutants in Franz Joseph Land snow were obtained using the most reliable GC × GC-HRMS non-target analysis.
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Affiliation(s)
- D M Mazur
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory 1/3, Moscow, 119991, Russia; Lomonosov Northern (Arctic) Federal University, Core Facility Center "Arktika", Nab. Severnoy Dviny 17, Arkhangelsk, 163002, Russia
| | - T B Latkin
- Lomonosov Northern (Arctic) Federal University, Core Facility Center "Arktika", Nab. Severnoy Dviny 17, Arkhangelsk, 163002, Russia
| | - D S Kosyakov
- Lomonosov Northern (Arctic) Federal University, Core Facility Center "Arktika", Nab. Severnoy Dviny 17, Arkhangelsk, 163002, Russia
| | - A Yu Kozhevnikov
- Lomonosov Northern (Arctic) Federal University, Core Facility Center "Arktika", Nab. Severnoy Dviny 17, Arkhangelsk, 163002, Russia
| | - N V Ul'yanovskii
- Lomonosov Northern (Arctic) Federal University, Core Facility Center "Arktika", Nab. Severnoy Dviny 17, Arkhangelsk, 163002, Russia
| | - A G Kirilov
- FSBI "National Park "Russian Arctic", Severnaya Dvina Embankment 36, Arkhangelsk, 163061, Russia
| | - A T Lebedev
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory 1/3, Moscow, 119991, Russia; Lomonosov Northern (Arctic) Federal University, Core Facility Center "Arktika", Nab. Severnoy Dviny 17, Arkhangelsk, 163002, Russia.
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Dufour A, Thiébaut D, Ligiero L, Loriau M, Vial J. Chromatographic behavior and characterization of polydisperse surfactants using Ultra-High-Performance Liquid Chromatography hyphenated to High-Resolution Mass Spectrometry. J Chromatogr A 2020; 1614:460731. [DOI: 10.1016/j.chroma.2019.460731] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 11/19/2019] [Accepted: 11/23/2019] [Indexed: 11/15/2022]
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6
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Ibragimova O, Kleiv RA. Development of an Ultraviolet-Spectrophotometric Method for Analysis of Esterquat-Containing Flotation Collectors in Aqueous Solutions. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Olga Ibragimova
- Department of Geosciences and Petroleum Engineering; Norwegian University of Science and Technology; Trondheim Norway
| | - Rolf Arne Kleiv
- Department of Geosciences and Petroleum Engineering; Norwegian University of Science and Technology; Trondheim Norway
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Fernández-Ramos C, Rodríguez-Gómez R, Reis MS, Zafra-Gómez A, Verge C, de Ferrer JA, Pérez-Pascual M, Vílchez JL. Sorption, degradation and transport phenomena of alcohol ethoxysulfates in agricultural soils. Laboratory studies. CHEMOSPHERE 2017; 171:661-670. [PMID: 28061424 DOI: 10.1016/j.chemosphere.2016.12.091] [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: 06/08/2016] [Revised: 10/25/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
In the present work, laboratory studies were conducted in order to determine and model the sorption, degradation and transport processes of alcohol ethoxysulfates (AES), one of the most important groups of anionic surfactants. Adsorption/desorption isotherms were obtained for several structurally related AES ethoxymers (homologue AES-C12En with n = 0-10 ethoxymer units and homologue AES-C14En with n = 0-7 ethoxymer units) using a batch equilibrium method. Data were fitted to a linear and a Freundlich isotherm models. Additionally, experiments in continuous-flow soil columns were also carried out and the breakthrough curves observed for each compound were studied. Breakthrough curves were used to determine the fundamental parameters of the transport model (hydrodynamic dispersion coefficient, degradation rate constant and adsorption/desorption isotherm slope), that is the main phenomena that take place simultaneously when AES move through agricultural soil. When the results obtained for the AES ethoxymers are combined, they reveal a clear and consistent trend towards a sorption increase with the number of ethoxylated units and with the length of the alkyl chain that opens the possibility to estimate the values of the transport parameters for other structurally related ethoxymers.
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Affiliation(s)
- C Fernández-Ramos
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain.
| | - R Rodríguez-Gómez
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
| | - M S Reis
- Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal
| | - A Zafra-Gómez
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain.
| | - C Verge
- Cepsa Química, Avenida del Partenón 12, E-28042, Madrid, Spain
| | - J A de Ferrer
- Cepsa Química, Avenida del Partenón 12, E-28042, Madrid, Spain
| | - M Pérez-Pascual
- Cepsa Química, Avenida del Partenón 12, E-28042, Madrid, Spain
| | - J L Vílchez
- Research Group of Analytical Chemistry and Life Sciences, Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Granada, Spain
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8
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du Chatinier W, Janssen HG. Combined chromatography and mass spectrometry for the molecular characterization of food emulsifiers. J Chromatogr A 2016; 1439:167-172. [PMID: 26818238 DOI: 10.1016/j.chroma.2016.01.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 12/17/2015] [Accepted: 01/03/2016] [Indexed: 11/29/2022]
Abstract
Food emulsifiers are widely used to stabilise water-fat emulsions such as mayonnaise and dressings. They are prepared by oligomerisation of a poly-alcohol (as e.g. glycerol or citric acid) followed by a reaction with fatty acids. In order to gain insight in the chemical composition of different emulsifiers, a range of chromatographic methods including gas chromatography, size exclusion chromatography, normal phase- and reversed phase liquid chromatography either or not in combination with mass spectrometry was deployed. The different methods turned out to be highly complementary. By combining the information from different methods the polar head group and the fatty acid part of the emulsifier can be characterised in detail. Mass spectrometry is indispensable for establishing the number of polar molecules in the head group as well as for establishing the correct combinations of fatty acids in one molecule. Ten commercial emulsifiers were described at the level of number and type of polar groups and fatty acids present.
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Affiliation(s)
- Wilma du Chatinier
- Unilever Research and Development Vlaardingen, P.O. Box 114, 3130 AC Vlaardingen, The Netherlands.
| | - Hans-Gerd Janssen
- Unilever Research and Development Vlaardingen, P.O. Box 114, 3130 AC Vlaardingen, The Netherlands; Analytical-Chemistry Group, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
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9
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Gold nanoparticles-based colorimetric determination of cationic surfactants in environmental water samples via both electrostatic and hydrophobic interactions. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1689-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Mohammad A, Mobin R. Ionic Liquid in Thin-Layer Chromatography of Anionic Surfactants: Selective Separation of Sodium Deoxycholate and Identification in Commercial Products. TENSIDE SURFACT DET 2015. [DOI: 10.3139/113.110402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractThe coupling of a silica static flat phase impregnated with an ionic liquid (1-methylimidazolium chloride) as stationary phase with 2-methyltetrahydrofuran an alternative green solvent of tetrahydrofuran as mobile phase has been very successful for a selective separation of sodium deoxycholate from other commonly used anionic surfactants. The proposed thin-layer chromatographic system is capable to analytically discriminate among the anionic surfactants in relation to their migration behaviour on an ionic liquid loaded silica layer. The surface structure and chemical composition of silica gel G modified by impregnation were examined with the aid of scanning electron microscopy (SEM) and energy dispersive X-ray spectrophotometry (EDX) respectively. Effects of concentration level of 1-methylimidazolium chloride as impregnant and its substitution by other ionic liquids (1,2,3-trimethylimidazolium methyl sulphate, 1-ethyl-3-methylimidazolium tetrafluoroborate) were also studied to decide the optimum experimental conditions for better separation possibilities. Chromatographic parameters such as ΔRF, the separation factor (α) and the resolution (RS) for the separation and limit of detection were calculated. The developed method has been usefully applied for the identification of sodium deoxycholate and sodium lauryl sulphate in formulated and commercially available products (Colgate toothpaste and Head & Shoulder Shampoo).
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Mohammad A, Mobin R. Eco-favourable Mobile Phase in Thin Layer Chromatographic Analysis of Surfactants: Resolution of Coexisting Alkyl Dimethylbenzyl Ammonium Chloride, Cetyltrimethyl Ammonium Bromide and Triton X 100. TENSIDE SURFACT DET 2015. [DOI: 10.3139/113.110393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractA thin-layer chromatographic system comprising of silica gel as stationary phase and a mixture of methanol, 0.1 % aqueous sodium thiocyanate, acetone and ethyl acetate in 7 : 3 : 2 : 3 ratio as eco-favourable mobile phase has been found most efficient for the separation of ternary mixture of surfactants (alkyldimethylbenzylammonium chloride (ADBAC) + cetyltrimethylammonium bromide (CTAB) + Triton X 100). The separation pattern has been presented as densitogram. Chromatographic parameters like ΔRF, separation factor (α) and resolution (RS) for the separation have been calculated. The effect of the presence of foreign substances such as metal cations, metal anions, amino acids and vitamins as impurities on the separation has been examined. The mobility trend of the separated surfactants was also examined by replacing methanol with other alcohols. The detection limits for ADBAC, CTAB and Triton X 100 have been determined. The proposed method has been successfully applied for the identification of ADBAC in the household cleaning product “Lizol”.
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12
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Deibel E, Klink D, Schmitz OJ. New derivatization strategies for the ultrasensitive analysis of non-aromatic analytes with APLI-TOF-MS. Anal Bioanal Chem 2015. [DOI: 10.1007/s00216-015-8908-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Ma Q, Ma W, Chen X, Wang Z, Bai H, Zhang L, Li W, Wang C, Li X. Comprehensive analysis of fatty alcohol ethoxylates by ultra high pressure hydrophilic interaction chromatography coupled with ion mobility spectrometry mass spectrometry using a custom-designed sub-2 μm column. J Sep Sci 2015; 38:2182-91. [PMID: 25847530 DOI: 10.1002/jssc.201500185] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 03/25/2015] [Accepted: 03/27/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Qiang Ma
- Chinese Academy of Inspection and Quarantine; Beijing China
- Weldon School of Biomedical Engineering; Purdue University; West Lafayette IN USA
| | - Wei Ma
- Post-Doctoral Mobile Station of Chemical Engineering and Technology; Harbin Institute of Technology; Harbin China
| | - Xi Chen
- Waters Corporation; Shanghai China
| | - Ziming Wang
- College of Chemistry; Jilin University; Changchun China
| | - Hua Bai
- Chinese Academy of Inspection and Quarantine; Beijing China
| | - Lanwei Zhang
- Post-Doctoral Mobile Station of Chemical Engineering and Technology; Harbin Institute of Technology; Harbin China
| | - Wentao Li
- Chinese Academy of Inspection and Quarantine; Beijing China
| | - Chao Wang
- Chinese Academy of Inspection and Quarantine; Beijing China
| | - Xinshi Li
- Chinese Academy of Inspection and Quarantine; Beijing China
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14
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Analytical Characterization and Comparison of Tristyrylphenol Ethoxylates Used in Agrochemical Formulations. J SURFACTANTS DETERG 2014. [DOI: 10.1007/s11743-014-1654-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Single-pump heart-cutting two-dimensional liquid chromatography applied to the determination of fatty alcohol ethoxylates. J Chromatogr A 2014; 1361:108-16. [DOI: 10.1016/j.chroma.2014.07.092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 07/28/2014] [Accepted: 07/29/2014] [Indexed: 11/21/2022]
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16
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Determination of non-ionic and anionic surfactants in industrial products by separation on a weak ion-exchanger, derivatization and liquid chromatography. J Chromatogr A 2013; 1320:66-71. [DOI: 10.1016/j.chroma.2013.10.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 09/27/2013] [Accepted: 10/12/2013] [Indexed: 11/30/2022]
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17
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Kulapina EG, Chernova RK, Makarova NM, Pogorelova ES. Methods for determining synthetic surfactants. ACTA ACUST UNITED AC 2013. [DOI: 10.1134/s2079978013030035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Fernández-Ramos C, Ballesteros O, Zafra-Gómez A, Blanc R, Navalón A, Vílchez J. Determination of alcohol sulfates and alcohol ethoxysulfates in wastewater samples by liquid chromatography tandem mass spectrometry. Microchem J 2013. [DOI: 10.1016/j.microc.2012.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Elsner V, Laun S, Melchior D, Köhler M, Schmitz OJ. Analysis of fatty alcohol derivatives with comprehensive two-dimensional liquid chromatography coupled with mass spectrometry. J Chromatogr A 2012; 1268:22-8. [DOI: 10.1016/j.chroma.2012.09.072] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 09/11/2012] [Accepted: 09/16/2012] [Indexed: 12/01/2022]
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20
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Validation of a Simple Spectrophotometric Method for the Measurement of Quaternary Ammonium Compound Residue Concentrations in Food Production Facility. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9537-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Gashti MP, Navid MY, Rahimi MH. Coating of macroemulsion and microemulsion silicones on poly(ethylene terephthalate) fibers: Evaluation of the thermal properties and flammability. J Appl Polym Sci 2012. [DOI: 10.1002/app.35601] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Wang L, Feng Q, Wang X, Pei M, Zhang G. A novel polythiophene derivative as a sensitive colorimetric and fluorescent sensor for anionic surfactants in water. NEW J CHEM 2012. [DOI: 10.1039/c2nj40460e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Arsene C, Vione D, Grinberg N, Olariu RI. GC × GC-MS HYPHENATED TECHNIQUES FOR THE ANALYSIS OF VOLATILE ORGANIC COMPOUNDS IN AIR. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.587749] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Cecilia Arsene
- a Faculty of Chemistry, Laboratory of Analytical Chemistry, “Al. I. Cuza” University of Iasi , Iasi, Romania
| | - Davide Vione
- b Dipartimento di Chimica Analitica , Università di Torino , Torino, Italy
- c Centro Interdipartimentale NatRisk, Università di Torino , Grugliasco (TO), Italy
| | - Nelu Grinberg
- d Boehringer Ingelheim Pharmaceuticals Inc. , Ridgefield, Connecticut, USA
| | - Romeo Iulian Olariu
- a Faculty of Chemistry, Laboratory of Analytical Chemistry, “Al. I. Cuza” University of Iasi , Iasi, Romania
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Kim S, Koo I, Fang A, Zhang X. Smith-Waterman peak alignment for comprehensive two-dimensional gas chromatography-mass spectrometry. BMC Bioinformatics 2011; 12:235. [PMID: 21676240 PMCID: PMC3133553 DOI: 10.1186/1471-2105-12-235] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Accepted: 06/15/2011] [Indexed: 11/30/2022] Open
Abstract
Background Comprehensive two-dimensional gas chromatography coupled with mass spectrometry (GC × GC-MS) is a powerful technique which has gained increasing attention over the last two decades. The GC × GC-MS provides much increased separation capacity, chemical selectivity and sensitivity for complex sample analysis and brings more accurate information about compound retention times and mass spectra. Despite these advantages, the retention times of the resolved peaks on the two-dimensional gas chromatographic columns are always shifted due to experimental variations, introducing difficulty in the data processing for metabolomics analysis. Therefore, the retention time variation must be adjusted in order to compare multiple metabolic profiles obtained from different conditions. Results We developed novel peak alignment algorithms for both homogeneous (acquired under the identical experimental conditions) and heterogeneous (acquired under the different experimental conditions) GC × GC-MS data using modified Smith-Waterman local alignment algorithms along with mass spectral similarity. Compared with literature reported algorithms, the proposed algorithms eliminated the detection of landmark peaks and the usage of retention time transformation. Furthermore, an automated peak alignment software package was established by implementing a likelihood function for optimal peak alignment. Conclusions The proposed Smith-Waterman local alignment-based algorithms are capable of aligning both the homogeneous and heterogeneous data of multiple GC × GC-MS experiments without the transformation of retention times and the selection of landmark peaks. An optimal version of the SW-based algorithms was also established based on the associated likelihood function for the automatic peak alignment. The proposed alignment algorithms outperform the literature reported alignment method by analyzing the experiment data of a mixture of compound standards and a metabolite extract of mouse plasma with spiked-in compound standards.
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Affiliation(s)
- Seongho Kim
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY 40292, USA.
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Wilson RB, Siegler WC, Hoggard JC, Fitz BD, Nadeau JS, Synovec RE. Achieving high peak capacity production for gas chromatography and comprehensive two-dimensional gas chromatography by minimizing off-column peak broadening. J Chromatogr A 2011; 1218:3130-9. [DOI: 10.1016/j.chroma.2010.12.108] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 11/29/2010] [Accepted: 12/26/2010] [Indexed: 11/30/2022]
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26
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Thermal Characterization and Flammability of Polyester Fiber Coated with Nonionic and Cationic Softeners. J SURFACTANTS DETERG 2011. [DOI: 10.1007/s11743-011-1255-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Moldovan Z, Avram V, Marincas O, Petrov P, Ternes T. The determination of the linear alkylbenzene sulfonate isomers in water samples by gas-chromatography/mass spectrometry. J Chromatogr A 2010; 1218:343-9. [PMID: 21159344 DOI: 10.1016/j.chroma.2010.11.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 10/17/2010] [Accepted: 11/22/2010] [Indexed: 10/18/2022]
Abstract
A number of 20 compounds of linear alkylbenzene sulfonates (LASs) family were identified by electron impact mass spectrometry (EI-MS) in water samples collected from wastewater treatment plants (WWTP). This paper presents the mass spectra of 20 compounds, the proposed mechanism of formation of the diagnostic ions obtained by EI-MS and the distribution of individual isomers in water samples collected from compartments of WWTP. The individual isomers from four homolog series C(10)-, C(11)-, C(12)- and C(13)-LAS were analyzed as methyl derivatives.
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Affiliation(s)
- Zaharie Moldovan
- National Institute of Research and Development for Isotopic and Molecular Technology (INCDTIM), Donath Street 65-103, 400293 Cluj-Napoca, Romania.
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Combination of chemical and electron-impact ionisation with GC×GC–qMS for characterization of fatty alcohol alkoxylate polymers in the low-molecular-weight range up to 700 Da. Anal Bioanal Chem 2010; 396:2273-83. [DOI: 10.1007/s00216-009-3434-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Revised: 12/22/2009] [Accepted: 12/28/2009] [Indexed: 11/26/2022]
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