1
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Lelevic A, Geantet C, Lorentz C, Moreaud M, Souchon V. Score Function for the Optimization of the Performance of Forward Fill/Flush Differential Flow Modulation for Comprehensive Two-Dimensional Gas Chromatography. J Chromatogr Sci 2023; 62:8-20. [PMID: 36919660 DOI: 10.1093/chromsci/bmad019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Indexed: 03/16/2023]
Abstract
Modulation is the key element of the comprehensive 2D gas chromatography separation. Forward fill/flush flow modulation is cost effective, robust and suitable for analysis of a wide range of samples. Even though this modulation system is well known, studies regarding its optimization are sparse. In this work, based on hundreds of experiments involving multiple column sets and modulation conditions, an approach was proposed that permits to facilitate the choice of the forward fill/flush flow modulation parameters. A score function was developed that allows to predict the forward fill/flush flow modulation process efficiency as judged by the modulated peak shape. The score function was based on the physical rules for optimized and quantitative forward fill/flush flow modulation proposed in our previous work, which state that the sum of the fill and flush modulation distances should be close to the modulation channel length and that the ratio of the flush and fill distances should be sufficiently high for efficient channel flushing. The score function was embedded in a freely available tool in the form of a forward fill/flush flow modulation calculator, which allows the user either to quickly check the relevancy of the modulation operating conditions or to obtain a suggestion for optimal modulation parameters.
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Affiliation(s)
- Aleksandra Lelevic
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize BP 3, 69360 Solaize, France
- Université de Lyon, Université Claude Bernard Lyon 1, Ircelyon, CNRS, Villeurbanne, F-69626 Lyon, France
| | - Christophe Geantet
- Université de Lyon, Université Claude Bernard Lyon 1, Ircelyon, CNRS, Villeurbanne, F-69626 Lyon, France
| | - Chantal Lorentz
- Université de Lyon, Université Claude Bernard Lyon 1, Ircelyon, CNRS, Villeurbanne, F-69626 Lyon, France
| | - Maxime Moreaud
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize BP 3, 69360 Solaize, France
| | - Vincent Souchon
- IFP Energies nouvelles, Rond-point de l'échangeur de Solaize BP 3, 69360 Solaize, France
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2
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Ejenavi O, Teng T, Huang W, Wang X, Zhang W, Zhang D. Online detection of alkanes by a biological-phase microextraction and biosensing (BPME-BS) device. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131316. [PMID: 37003003 DOI: 10.1016/j.jhazmat.2023.131316] [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: 02/03/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 05/03/2023]
Abstract
Oil spill incidents occur frequently and threaten ecosystems and human health. Solid-phase microextraction allows direct alkane extraction from environmental matrices to improve the limit of detection but is unable to measure alkanes on site. A biological-phase microextraction and biosensing (BPME-BS) device was developed by immobilising an alkane chemotactic Acinetobacter bioreporter ADPWH_alk in agarose gel to achieve online alkane quantification with the aid of a photomultiplier. The BPME-BS device had a high enrichment factor (average 7.07) and a satisfactory limit of detection (0.075 mg/L) for alkanes. The quantification range was 0.1-100 mg/L, comparable to a gas chromatography flame ionisation detector and better than a bioreporter without immobilisation. ADPWH_alk cells in the BPME-BS device maintained good sensitivity under a wide range of environmental conditions, including pH (4.0-9.0), temperature (20-40 °C), and salinity (0.0-3.0%), and its response remained stable within 30 days at 4 °C. In a 7-day continual measurement, the BPME-BS device successfully visualised the dynamic concentration of alkanes, and a 7-day field test successfully captured an oil spill event, helping in source apportionment and on-scene law enforcement. Our work proved that the BPME-BS device is a powerful tool for online alkane measurement, showing substantial potential for fast detection and rapid response to oil spills on site and in situ.
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Affiliation(s)
- Odafe Ejenavi
- Lancaster Environment Centre, Lancaster University, LA1 4YQ, UK
| | - Tingting Teng
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, PR China; College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Wenxin Huang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, PR China; College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Xinzi Wang
- School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Wenjing Zhang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, PR China; College of New Energy and Environment, Jilin University, Changchun 130012, PR China
| | - Dayi Zhang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, PR China; College of New Energy and Environment, Jilin University, Changchun 130012, PR China.
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4
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Aqel A, Alzahrani SS, Al-Rifai A, Alturkey M, Yusuf K, ALOthman ZA, Badjah-Hadj-Ahmed AY. Determination of Monoaromatic Hydrocarbons in Water Samples by Nano-Liquid Chromatography using a Composite Carbon Nanotubes- Lauryl Polymethacrylate Capillary Monolithic Column. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411014666180619144741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
This work reports a green analytical method for the determination of organic
environmental pollutants using nano-liquid chromatography with a self-made column for rapid, sensitive,
inexpensive and efficient analysis of BTX pollutants in water. The applications of monolithic nanoscale
columns for quantitative analysis of environmental real samples are very limited in the literature.
Methods:
A capillary column containing a composite of multi-walled carbon nanotubes incorporated
into a lauryl methacrylate-co-ethylene dimethacrylate porous monolithic polymer was fabricated for
the determination of BTX pollutants in real water samples.
Results:
Baseline separation was accomplished at 0.4 µL/min flow rate with UV-detection set at 208
nm. Under the optimum conditions, the calibration curves were validated over the range of 1.0-500
µg/L with R2 more than 0.9992. The detection limits of benzene, toluene, o-xylene and m/p-xylene
were 0.25, 0.05, 0.075 and 0.05 µg/L, respectively. After a simple extraction process with a theoretical
preconcentration factor equal to 200, the recovery values in Milli-Q, tap and sea water samples were
found to be ranged from 84.85 to 97.84% with %RSD less than 7.5. Furthermore, we reported a comparison
between our prepared composite column with a commercial C18 silica based column which is
the most used in such analytical field. Each column demonstrated its advantages from different analytical
aspects.
Conclusion:
The application of monolithic columns and nano-scale LC for routine analysis of environmental
samples is very promising as the use of monolithic capillary columns offers several advantages
over conventional scale particulate packed columns.
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Affiliation(s)
- Ahmad Aqel
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Soad S. Alzahrani
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Asma’a Al-Rifai
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mohammed Alturkey
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Kareem Yusuf
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Zeid A. ALOthman
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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5
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Mommers J, van der Wal S. Column Selection and Optimization for Comprehensive Two-Dimensional Gas Chromatography: A Review. Crit Rev Anal Chem 2020; 51:183-202. [DOI: 10.1080/10408347.2019.1707643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- John Mommers
- DSM Material Science Center, Geleen, The Netherlands
| | - Sjoerd van der Wal
- Polymer-Analysis Group, University of Amsterdam, Amsterdam, The Netherlands
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6
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Treder N, Bączek T, Wychodnik K, Rogowska J, Wolska L, Plenis A. The Influence of Ionic Liquids on the Effectiveness of Analytical Methods Used in the Monitoring of Human and Veterinary Pharmaceuticals in Biological and Environmental Samples-Trends and Perspectives. Molecules 2020; 25:E286. [PMID: 31936806 PMCID: PMC7024248 DOI: 10.3390/molecules25020286] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/27/2019] [Accepted: 01/08/2020] [Indexed: 02/06/2023] Open
Abstract
Recent years have seen the increased utilization of ionic liquids (ILs) in the development and optimization of analytical methods. Their unique and eco-friendly properties and the ability to modify their structure allows them to be useful both at the sample preparation stage and at the separation stage of the analytes. The use of ILs for the analysis of pharmaceuticals seems particularly interesting because of their systematic delivery to the environment. Nowadays, they are commonly detected in many countries at very low concentration levels. However, due to their specific physiological activity, pharmaceuticals are responsible for bioaccumulation and toxic effects in aquatic and terrestrial ecosystems as well as possibly upsetting the body's equilibrium, leading to the dangerous phenomenon of drug resistance. This review will provide a comprehensive summary of the use of ILs in various sample preparation procedures and separation methods for the determination of pharmaceuticals in environmental and biological matrices based on liquid-based chromatography (LC, SFC, TLC), gas chromatography (GC) and electromigration techniques (e.g., capillary electrophoresis (CE)). Moreover, the advantages and disadvantages of ILs, which can appear during extraction and separation, will be presented and attention will be given to the criteria to be followed during the selection of ILs for specific applications.
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Affiliation(s)
- Natalia Treder
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland; (N.T.); (T.B.)
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland; (N.T.); (T.B.)
| | - Katarzyna Wychodnik
- Department of Environmental Toxicology, Faculty of Health Sciences with Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Dębowa 23 A, 80-204 Gdańsk, Poland; (K.W.); (J.R.); (L.W.)
| | - Justyna Rogowska
- Department of Environmental Toxicology, Faculty of Health Sciences with Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Dębowa 23 A, 80-204 Gdańsk, Poland; (K.W.); (J.R.); (L.W.)
| | - Lidia Wolska
- Department of Environmental Toxicology, Faculty of Health Sciences with Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Dębowa 23 A, 80-204 Gdańsk, Poland; (K.W.); (J.R.); (L.W.)
| | - Alina Plenis
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, Hallera 107, 80-416 Gdańsk, Poland; (N.T.); (T.B.)
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7
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Shashkov MV, Sidelnikov VN. Orthogonality and Quality of GC × GC Separations for Complex Samples with Ionic Liquid Stationary Phases in First Dimension. Chromatographia 2018. [DOI: 10.1007/s10337-018-3672-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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8
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Regmi BP, Chan R, Atta A, Agah M. Ionic liquid-coated alumina-pretreated micro gas chromatography columns for high-efficient separations. J Chromatogr A 2018; 1566:124-134. [DOI: 10.1016/j.chroma.2018.06.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 06/22/2018] [Accepted: 06/24/2018] [Indexed: 01/16/2023]
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9
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Nawała J, Dawidziuk B, Dziedzic D, Gordon D, Popiel S. Applications of ionic liquids in analytical chemistry with a particular emphasis on their use in solid-phase microextraction. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.04.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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10
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Nan H, Anderson JL. Ionic liquid stationary phases for multidimensional gas chromatography. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.03.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Pollo BJ, Alexandrino GL, Augusto F, Hantao LW. The impact of comprehensive two-dimensional gas chromatography on oil & gas analysis: Recent advances and applications in petroleum industry. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.05.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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12
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Patil RA, Talebi M, Sidisky LM, Armstrong DW. Examination of Selectivities of Thermally Stable Geminal Dicationic Ionic Liquids by Structural Modification. Chromatographia 2017. [DOI: 10.1007/s10337-017-3372-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Li H, Martin FL, Zhang D. Quantification of Chemotaxis-Related Alkane Accumulation in Acinetobacter baylyi Using Raman Microspectroscopy. Anal Chem 2017; 89:3909-3918. [DOI: 10.1021/acs.analchem.6b02297] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hanbing Li
- Lancaster
Environment Centre, Lancaster University, Lancaster LA1 4YQ, U.K
| | - Francis Luke Martin
- Lancaster
Environment Centre, Lancaster University, Lancaster LA1 4YQ, U.K
- School
of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston PR1 2HE, U.K
| | - Dayi Zhang
- Lancaster
Environment Centre, Lancaster University, Lancaster LA1 4YQ, U.K
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14
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Miranda NT, Sequinel R, Hatanaka RR, de Oliveira JE, Flumignan DL. Ultrafast gas chromatography method with direct injection for the quantitative determination of benzene, toluene, ethylbenzene, and xylenes in commercial gasoline. J Sep Sci 2017; 40:1508-1515. [PMID: 28169493 DOI: 10.1002/jssc.201601174] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 01/12/2017] [Accepted: 01/20/2017] [Indexed: 11/06/2022]
Abstract
Benzene, toluene, ethylbenzene, and xylenes are some of the most hazardous constituents found in commercial gasoline samples; therefore, these components must be monitored to avoid toxicological problems. We propose a new routine method of ultrafast gas chromatography coupled to flame ionization detection for the direct determination of benzene, toluene, ethylbenzene, and xylenes in commercial gasoline. This method is based on external standard calibration to quantify each compound, including the validation step of the study of linearity, detection and quantification limits, precision, and accuracy. The time of analysis was less than 3.2 min, with quantitative statements regarding the separation and quantification of all compounds in commercial gasoline samples. Ultrafast gas chromatography is a promising alternative method to official analytical techniques. Government laboratories could consider using this method for quality control.
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Affiliation(s)
- Nahieh Toscano Miranda
- Instituto Federal de Educação, Ciência e Tecnologia de São Paulo-IFSP-Campus Matão, Matão, São Paulo, Brasil.,Centro de Monitoramento e Pesquisa da Qualidade de Combustíveis, Biocombustíveis, Petróleo e Derivados-Cempeqc, São Paulo State University-Unesp, Araraquara, São Paulo, Brasil
| | - Rodrigo Sequinel
- Centro de Monitoramento e Pesquisa da Qualidade de Combustíveis, Biocombustíveis, Petróleo e Derivados-Cempeqc, São Paulo State University-Unesp, Araraquara, São Paulo, Brasil
| | - Rafael Rodrigues Hatanaka
- Centro de Monitoramento e Pesquisa da Qualidade de Combustíveis, Biocombustíveis, Petróleo e Derivados-Cempeqc, São Paulo State University-Unesp, Araraquara, São Paulo, Brasil
| | - José Eduardo de Oliveira
- Centro de Monitoramento e Pesquisa da Qualidade de Combustíveis, Biocombustíveis, Petróleo e Derivados-Cempeqc, São Paulo State University-Unesp, Araraquara, São Paulo, Brasil
| | - Danilo Luiz Flumignan
- Instituto Federal de Educação, Ciência e Tecnologia de São Paulo-IFSP-Campus Matão, Matão, São Paulo, Brasil.,Centro de Monitoramento e Pesquisa da Qualidade de Combustíveis, Biocombustíveis, Petróleo e Derivados-Cempeqc, São Paulo State University-Unesp, Araraquara, São Paulo, Brasil
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15
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Nan H, Zhang C, O’Brien RA, Benchea A, Davis JH, Anderson JL. Lipidic ionic liquid stationary phases for the separation of aliphatic hydrocarbons by comprehensive two-dimensional gas chromatography. J Chromatogr A 2017; 1481:127-136. [DOI: 10.1016/j.chroma.2016.12.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/12/2016] [Accepted: 12/13/2016] [Indexed: 12/26/2022]
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16
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Liu H, Xu X, Shi Z, Liu K, Fang Y. Solvatochromic Probes Displaying Unprecedented Organic Liquids Discriminating Characteristics. Anal Chem 2016; 88:10167-10175. [DOI: 10.1021/acs.analchem.6b02721] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Huijing Liu
- Key Laboratory of Applied Surface
and Colloid Chemistry (Ministry
of Education), ‡School of Materials Science and Engineering, and §School of Chemistry and Chemical
Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710062, P. R. China
| | - Xiaojie Xu
- Key Laboratory of Applied Surface
and Colloid Chemistry (Ministry
of Education), ‡School of Materials Science and Engineering, and §School of Chemistry and Chemical
Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710062, P. R. China
| | - Zijun Shi
- Key Laboratory of Applied Surface
and Colloid Chemistry (Ministry
of Education), ‡School of Materials Science and Engineering, and §School of Chemistry and Chemical
Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710062, P. R. China
| | - Kaiqiang Liu
- Key Laboratory of Applied Surface
and Colloid Chemistry (Ministry
of Education), ‡School of Materials Science and Engineering, and §School of Chemistry and Chemical
Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710062, P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface
and Colloid Chemistry (Ministry
of Education), ‡School of Materials Science and Engineering, and §School of Chemistry and Chemical
Engineering, Shaanxi Normal University, Xi’an, Shaanxi 710062, P. R. China
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17
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Characterization of sulfur and nitrogen compounds in Brazilian petroleum derivatives using ionic liquid capillary columns in comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometric detection. J Chromatogr A 2016; 1461:131-43. [DOI: 10.1016/j.chroma.2016.07.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 07/06/2016] [Accepted: 07/07/2016] [Indexed: 02/01/2023]
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18
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Weber BM, Walsh P, Harynuk JJ. Determination of Hydrocarbon Group-Type of Diesel Fuels by Gas Chromatography with Vacuum Ultraviolet Detection. Anal Chem 2016; 88:5809-17. [DOI: 10.1021/acs.analchem.6b00383] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brandon M. Weber
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6C 2X4, Canada
| | - Phillip Walsh
- VUV Analytics, Inc., Cedar Park, Texas 78613, United States
| | - James. J. Harynuk
- Department
of Chemistry, University of Alberta, Edmonton, Alberta T6C 2X4, Canada
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19
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Nolvachai Y, Kulsing C, Marriott PJ. In Silico Modeling of Hundred Thousand Experiments for Effective Selection of Ionic Liquid Phase Combinations in Comprehensive Two-Dimensional Gas Chromatography. Anal Chem 2016; 88:2125-31. [DOI: 10.1021/acs.analchem.5b03688] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yada Nolvachai
- Australian Centre for Research
on Separation Science, School of Chemistry, Monash University, Wellington
Road, Clayton, Victoria 3800, Australia
| | - Chadin Kulsing
- Australian Centre for Research
on Separation Science, School of Chemistry, Monash University, Wellington
Road, Clayton, Victoria 3800, Australia
| | - Philip J. Marriott
- Australian Centre for Research
on Separation Science, School of Chemistry, Monash University, Wellington
Road, Clayton, Victoria 3800, Australia
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20
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Jacobs MR, Gras R, Nesterenko PN, Luong J, Shellie RA. Back-flushing and heart cut capillary gas chromatography using planar microfluidic Deans’ switching for the separation of benzene and alkylbenzenes in industrial samples. J Chromatogr A 2015; 1421:123-8. [DOI: 10.1016/j.chroma.2015.10.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/08/2015] [Accepted: 10/09/2015] [Indexed: 11/30/2022]
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21
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Zhang C, Ingram IC, Hantao LW, Anderson JL. Identifying important structural features of ionic liquid stationary phases for the selective separation of nonpolar analytes by comprehensive two-dimensional gas chromatography. J Chromatogr A 2015; 1386:89-97. [DOI: 10.1016/j.chroma.2015.01.074] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Revised: 01/24/2015] [Accepted: 01/26/2015] [Indexed: 01/15/2023]
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22
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Gas chromatography on wall-coated open-tubular columns with ionic liquid stationary phases. J Chromatogr A 2014; 1357:87-109. [DOI: 10.1016/j.chroma.2014.03.029] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 02/22/2014] [Accepted: 03/10/2014] [Indexed: 11/24/2022]
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23
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Májek P, Krupčík J, Gorovenko R, Špánik I, Sandra P, Armstrong DW. Computerized optimization of flows and temperature gradient in flow modulated comprehensive two-dimensional gas chromatography. J Chromatogr A 2014; 1349:135-8. [DOI: 10.1016/j.chroma.2014.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 04/25/2014] [Accepted: 05/05/2014] [Indexed: 11/15/2022]
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24
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Weber W, Andersson JT. Ionic liquids as stationary phases in gas chromatography—an LSER investigation of six commercial phases and some applications. Anal Bioanal Chem 2014; 406:5347-58. [DOI: 10.1007/s00216-014-7972-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/26/2014] [Accepted: 06/12/2014] [Indexed: 11/30/2022]
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25
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Hantao LW, Najafi A, Zhang C, Augusto F, Anderson JL. Tuning the Selectivity of Ionic Liquid Stationary Phases for Enhanced Separation of Nonpolar Analytes in Kerosene Using Multidimensional Gas Chromatography. Anal Chem 2014; 86:3717-21. [DOI: 10.1021/ac5004129] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leandro W. Hantao
- Department
of Chemistry, The University of Toledo, Toledo, Ohio 43606, United States
- Institute
of Chemistry, University of Campinas, Campinas, São Paulo 13084-970, Brazil
| | - Ali Najafi
- Department
of Chemistry, The University of Toledo, Toledo, Ohio 43606, United States
| | - Cheng Zhang
- Department
of Chemistry, The University of Toledo, Toledo, Ohio 43606, United States
| | - Fabio Augusto
- Institute
of Chemistry, University of Campinas, Campinas, São Paulo 13084-970, Brazil
| | - Jared L. Anderson
- Department
of Chemistry, The University of Toledo, Toledo, Ohio 43606, United States
- School
of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, United States
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26
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Ho TD, Zhang C, Hantao LW, Anderson JL. Ionic liquids in analytical chemistry: fundamentals, advances, and perspectives. Anal Chem 2013; 86:262-85. [PMID: 24205989 DOI: 10.1021/ac4035554] [Citation(s) in RCA: 374] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tien D Ho
- Department of Chemistry, The University of Toledo , Toledo, Ohio 43606, United States
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