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Abstract
Capillary gas chromatography (GC) is rapidly reaching a state of maturity. Recent advances in GC include new highly selective and stable open-tubular columns, capillary sampling techniques, and element-sensitive (plasma) detectors. An impressive growth of modern liquid chromatography continues with an emphasis on the separations of biopolymers, new silica-based and stable polymeric packings, microcolumn techniques, electroosmotically driven separations, and ultrasensitive detection. Supercritical fluid chromatography has gained considerable attention primarily because of its distinctive detection capabilities. Novel combinations of chromatographic techniques with each other, or with spectroscopic methods, continue to be explored.
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NAKADA K, MOHAMMADZAI IU, TSUKAHARA S, FUJIWARA T. Adsorption Behavior of the Cetyltrimethylammonium Chloride Reverse Micelles on Porous Silica Gels. ANAL SCI 2009; 25:201-6. [DOI: 10.2116/analsci.25.201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Kouta NAKADA
- Department of Chemistry, Graduate School of Science, Hiroshima University
| | | | - Satoshi TSUKAHARA
- Department of Chemistry, Graduate School of Science, Hiroshima University
| | - Terufumi FUJIWARA
- Department of Chemistry, Graduate School of Science, Hiroshima University
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Ekeberg D, Jablonska-Jentoft AM. Ion-neutral reactions in the ion source of a mixture of CO2/CH3OH, CO2/C2H5OH, and CO2/2-C3H7OH by packed capillary supercritical fluid chromatography-mass spectrometry (SFC-MS). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2007; 18:2173-2179. [PMID: 17964802 DOI: 10.1016/j.jasms.2007.09.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2007] [Revised: 09/18/2007] [Accepted: 09/20/2007] [Indexed: 05/25/2023]
Abstract
Ion neutral reactions in the gas phase in mixtures of ROH/CO(2), R = CH(3), C(2)H(5), and 2-C(3)H(7) were studied by supercritical fluid chromatography-mass spectrometry (SFC-MS). Three main reaction series were found for this system; ionization followed by alpha-cleavage, formation of clusters, and formation of protonated dialkyl ethers from the corresponding alcohol. The ion chemistries were similar for the three alcohols, but that of 2-propanol was somewhat more complex.
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Affiliation(s)
- Dag Ekeberg
- Department of Chemistry, Biotechnology, and Food Science, University of Life Sciences, As , Norway.
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Shervani Z, Ikushima Y, Yokoyama T, Sato M, Hakuta Y, Takako N, Kunieda H, Aramaki K. Size controlled synthesis of Ag and Cu nanocrystals in F-AOT/n-butanol/SC CO2 microemulsions. Colloids Surf A Physicochem Eng Asp 2007. [DOI: 10.1016/j.colsurfa.2007.02.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Affiliation(s)
- Richard D. Smith
- a Chemical Methods and Separations Group Chemical Sciences Department , Pacific Northwest Laboratory , Richland , Washington , 99352
- b U. S. Department of Energy , Battelle Memorial Institute , under Contract DE-AC06-76RLO 1830
| | - John L. Fulton
- a Chemical Methods and Separations Group Chemical Sciences Department , Pacific Northwest Laboratory , Richland , Washington , 99352
- b U. S. Department of Energy , Battelle Memorial Institute , under Contract DE-AC06-76RLO 1830
| | - Marian K. Jones
- a Chemical Methods and Separations Group Chemical Sciences Department , Pacific Northwest Laboratory , Richland , Washington , 99352
- b U. S. Department of Energy , Battelle Memorial Institute , under Contract DE-AC06-76RLO 1830
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Heitz MP, Carlier C, deGrazia J, Harrison KL, Johnston KP, Randolph TW, Bright FV. Water Core within Perfluoropolyether-Based Microemulsions Formed in Supercritical Carbon Dioxide. J Phys Chem B 1997. [DOI: 10.1021/jp9622243] [Citation(s) in RCA: 93] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mark P. Heitz
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, Department of Chemical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309-0424, and Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Claude Carlier
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, Department of Chemical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309-0424, and Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Janet deGrazia
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, Department of Chemical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309-0424, and Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Kristi L. Harrison
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, Department of Chemical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309-0424, and Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Keith P. Johnston
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, Department of Chemical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309-0424, and Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Theodore W. Randolph
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, Department of Chemical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309-0424, and Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
| | - Frank V. Bright
- Department of Chemistry, Natural Sciences Complex, State University of New York at Buffalo, Buffalo, New York 14260-3000, Department of Chemical Engineering, University of Colorado at Boulder, Boulder, Colorado 80309-0424, and Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712
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Clarke MJ, Harrison KL, Johnston KP, Howdle SM. Water in Supercritical Carbon Dioxide Microemulsions: Spectroscopic Investigation of a New Environment for Aqueous Inorganic Chemistry. J Am Chem Soc 1997. [DOI: 10.1021/ja9639527] [Citation(s) in RCA: 191] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthew J. Clarke
- Contribution from the Department of Chemistry, University of Nottingham, University Park, Nottingham, U.K. NG7 2RD, and Department of Chemical Engineering, 26th and Speedway, University of Texas at Austin, Austin, Texas 78712-1062
| | - Kristi L. Harrison
- Contribution from the Department of Chemistry, University of Nottingham, University Park, Nottingham, U.K. NG7 2RD, and Department of Chemical Engineering, 26th and Speedway, University of Texas at Austin, Austin, Texas 78712-1062
| | - Keith P. Johnston
- Contribution from the Department of Chemistry, University of Nottingham, University Park, Nottingham, U.K. NG7 2RD, and Department of Chemical Engineering, 26th and Speedway, University of Texas at Austin, Austin, Texas 78712-1062
| | - Steven M. Howdle
- Contribution from the Department of Chemistry, University of Nottingham, University Park, Nottingham, U.K. NG7 2RD, and Department of Chemical Engineering, 26th and Speedway, University of Texas at Austin, Austin, Texas 78712-1062
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