Výsledky vyhledávání - "Edward B. Ledford"

Peak pattern variations related to comprehensive two-dimensional gas chromatography acquisition

Autor: Termaat Joel, Stephen E. Reichenbach, Mingtian Ni, Edward B. Ledford, Arvind Visvanathan

Publikováno v: Journal of Chromatography A. 1086:165-170

Identifying compounds of interest for peaks in data generated by comprehensive two-dimensional gas chromatography (GC x GC) is a critical analytical task. Manually identifying compounds is tedious and time-consuming. An alternative is to use pattern

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ebea40868527f0404cb5635b3c49516
https://doi.org/10.1016/j.chroma.2005.06.033

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Correlations between Pulp Properties of Eucalyptus Clones and Leaf Volatiles Using Automated Solid-Phase Microextraction

Autor: Edward B. Ledford, Teotonio F. De Assis, Cláudia Alcaraz Zini, Janusz Pawliszyn, Eva Christensen, Cláudio Dariva, Jandyra Fachel

Publikováno v: Journal of Agricultural and Food Chemistry. 51:7848-7853

Analysis of biogenic volatile organic compounds (BVOC) of 14 Eucalyptus clones has been performed using an automated headspace solid-phase microextraction (HS-SPME) coupled to gas chromatography (GC)/ion trap mass spectrometry (ITMS) method. Correlat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::510d6a65d58db27d02c13ed08df67265
https://doi.org/10.1021/jf034799k

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Quantitative Determination of BTEX and Total Aromatic Compounds in Gasoline by Comprehensive Two-Dimensional Gas Chromatography (GC×GC)

Autor: Richard B. Gaines, Edward B. Ledford, Glenn S. Frysinger

Publikováno v: Journal of High Resolution Chromatography. 22:195-200

Comprehensive two-dimensional gas chromatography (GC×GC) has been applied to the quantitative analysis of benzene, toluene, ethylbenzene, xylenes (BTEX), and all heavier aromatic compounds in gasoline. The two-dimensional chromatographic separation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a05d2be3fe0b5a27cc8d5cb576bca963
https://doi.org/10.1002/(sici)1521-4168(19990401)22:4<195::aid-jhrc195>3.0.co

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A Robust Thermal Modulator for Comprehensive Two-Dimensional Gas Chromatography

Autor: John B. Phillips, John Lipsky, Richard B. Gaines, Henk Jan De Geus, Edward B. Ledford, James Granger, Jacob de Boer, Vaughn E. Green, Jean Marie D. Dimandja, Donald G. Patterson, Peter Haglund, Laell Racovalis, Veena Sinha, Frans W.M. Van Der Wielen, Jan Blomberg

Publikováno v: Journal of high resolution chromatography 22 (1999) 1
Journal of high resolution chromatography, 22(1), 3-10

In comprehensive two dimensional gas chromatography (GCxGC), two capillary columns are connected in series through an interface known as a 'thermal modulator'. This device transforms effluent from the first capillary column into a series of sharp inj

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fb31de575d6a52efc93b0cd4d923bc4
https://doi.org/10.1002/(sici)1521-4168(19990101)22:1<3::aid-jhrc3>3.0.co

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Analysis of water samples for trace levels of oxygenate and aromatic compounds using headspace solid-phase microextraction and comprehensive two-dimensional gas chromatography

Autor: James D. Stuart, Richard B. Gaines, Edward B. Ledford

Publikováno v: Journal of Microcolumn Separations. 10:597-604

Headspace solid-phase microextraction (SPME) and comprehensive two-dimensional gas chromatography (C2DGC) have been applied to the quantitative analysis of trace levels of oxygenate and aromatic compounds. The oxygenates studied were methyl-tert-buty

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d2884f80953aa4e9e53c92e9313d2410
https://doi.org/10.1002/(sici)1520-667x(1998)10:7<597::aid-mcs6>3.0.co

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Thermal modulation: A chemical instrumentation component of potential value in improving portability

Autor: Edward B. Ledford, John B. Phillips

Publikováno v: Field Analytical Chemistry & Technology. 1:23-29

A thermal modulator is a chemical instrument component that controls the temperature of a short length of gas chromatographic column as a function of time and position. Simple rotation of a heater element over a capillary gas chromatography column ac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00f65bb10a91fea8b3c1f2d98dd20a99
https://doi.org/10.1002/(sici)1520-6521(1996)1:1<23::aid-fact4>3.0.co

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Experimental evaluation of a hyperbolic ion trap for fourier transform ion cyclotron resonance mass spectrometry

Autor: Mingda Wang, Edward B. Ledford, Alan G. Marshall, Winnie W. Yin

Publikováno v: Journal of the American Society for Mass Spectrometry. 3:188-197

The Penning ion trap, consisting of hyperbolically curved electrodes arranged as an unbroken ring electrode capped by two end electrodes whose interelectrode axis lies along the direction of an applied static magnetic field, has long been used for si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c4e6bf7125ed422118c8436b02c386b
https://doi.org/10.1016/1044-0305(92)87002-g

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Jet-Cooled Thermal Modulator for Comprehensive Multidimensional Gas Chromatography

Autor: Chris A. Billesbach, Edward B. Ledford

Publikováno v: Journal of High Resolution Chromatography. 23:202-204

A jet of cool gas is used to locally cool a section of modulator tube in the presence of the stirred oven bath of a GC x GC instrument. Local cooling decouples the temperature of the modulator tube from that of the first dimension column, which was 1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5430a653890430a135e58fd74c21f131
https://doi.org/10.1002/(sici)1521-4168(20000301)23:3<202::aid-jhrc202>3.0.co

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