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J. Hamilton, P. Webb, A. Lewis, J. Hopkins, S. Smith, P. Davy
Atmospheric Chemistry & Physics Discussions; 2004/#4, 09.03.2004, 1393-1423

Profiling the ester aroma of fruity beers using comprehensive two-dimensional
gas chromatography: a comparison of flow and cryogenic
modulators; University of Liège, Liège, Belgium

By John Heim/Mark Libardoni
The following appeared in the March 2008 issue of Current Trends in Mass Spectrometry (LC/GC Supplement) and has been reprinted with permission.

By John Heim and Doug Staples
Current Trends in Mass Spectrometry, May 2010

Bob Nelson and Chris Reddy [Woods Hole Oceanographic Institution (WHOI)] discuss their laboratory's GCxGC process. Presented 19 September 2017.

Copresenters Renee Cataneo & Mayur Mundada [Menssana Research Inc.] discuss data obtained through GCxGC TOF-MS analysis of breath samples. Originally presented 20 September 2012.

Dave Alonso explores GCxGC TOFMS analysis of cannabis samples for understanding of terpene and cannabinoids among cannabis cultivars. Presented 16 April 2020.

Liz Humston-Fulmer [LECO] utilized GCxGC TOF-MS technologies to understand the chemical composition of CBD-infused beverages. Originally presented 26 March 2020.

Two-dimensional gas chromatography (GCxGC) analysis of individual chemical components of a Citronella essential oil sample with LECO Pegasus® BT 4D. LECO Ref. #203-821-611

Liz Humston-Fulmer [LECO] discusses how GC-MS can isolate analyte differences among aging beer samples. Presented 27 September 2018. 

Two-dimensional comprehensive gas chromatography analysis of lipophilac soxhlet extractions supplied by the USDA Forest Service.

Jeff Gast [LECO] presents an approach for determining proper temperature and analytical gas composition to provide the most accurate moisture value in cannabis, utilizing the RC612 and TGM800. Originally presented 02 April 2020.

Rob Synovec [University of Washington] discusses discovery-based analysis and its application into gas chromatography, and the development of ChromaTOF® Tile, a tile-based fisher ratio analysis tool. [Synovec presentation begins at 14:00]. Presented at ASMS on 10 June 2020.

Cannabis is difficult to analyze due to its chemical diversity and the wide concentration ranges of its constituents. This diversity is important in determining its utility, potency and medicinal effectiveness. Julie Kowalski [JA Kowalski Science Support] discusses using GCxGC TOF-MS to determine constituents (such as cannabinoids, terpnes, flavonoids, and contaminants) in cannabis samples. On-demand webinar.

Tony Bristow [Astra Zeneca] discusses the development and growth of time-of-flight mass spectrometry, along with how high-resolution instruments (such as Pegasus GC-HRT) can advance pharmaceuticals research. Originally presented 29 March 2012.

FLUX GCxGC: The operation, use, and concepts behind a diverting flow technique. Regards FLUX Modulator. LECO Ref. #209-281-004

Christina Kelly [LECO] explores how gas chromatography techniques can be utilized to identify fuel fraud - tax evasive behaviors utilizing gasoline-based fuels - and how LECO instruments perform against ASTM D5769 (standard test method for determination of benzene, toluene, and total aromatics in finished gasolines). 

John Heim [LECO], discusses the capability of GCxGC TOF-MS for drug screening analysis with limited sample preparation. Presented 24 June 2010.

Promotional Flyer for LECO GCxGC Symposium 2013

John Seeley [Oakland University] discusses various modulation technique for sample introduction into GCxGC columns. Presented 29 March 2019.

St. Louis Metabolomics Symposium Presentation

Vladimir Tolstikov, PhD, from Eli Lilly, discusses utilizing High-Resolution Gas Chromatography Mass Spectrometry in Metabolomics analyses. Originally presented 21 February 2013.

Thomas Groger [University of Rostock] discusses the benefits that GCxGC provided their laboratory with the study of crude oils, bitumen, and various high boilers (solvents added to slow evaporation rates). Presented 08 March 2018.

Literature for Identification Grading System (IGS), developed from EPA's Non-Targeted Analysis Collaborative Trial (ENTACT). LECO's IGS works with ChromaTOF® software. LECO Ref. #209-284

Utilization of GCxGC TOF-MS to compare brand-name perfume with two drugstore imitations. Explore how the Pegasus BT 4D isolates chemical similarities and differences among the scents. LECO Ref. #203-821-597

St. Louis Metabolomics Symposium Presentation

Research Hype to Practical Analysis: Benefits of Comprehensive Two-Dimensional Gas Chromatography (GCxGC) for a Routine Laboratory, authored by Michelle Misselwitz. LECO Ref. #209-281-003

St. Louis Metabolomics Symposium Presentation

Solutions for Metabolomics Analysis. As the established leader in GC-MS metabolomics, LECO products deliver the accuracy, resolving power, deconvoclution, and speed to characterize the most complex biological systems. LECO Ref. #209-240

Lorne Fell [LECO] provides an update on LECO Separation Science instruments and equipment. Jean-François Focant [University of Liège] presents "Multiclass GCxGC Method for Cannabis Products", discussing how GCxGC can be utilized to study cannabis strains for CBD content. Presented at ASMS 2020.

Let your data soar with the LECO Pegasus® series of Time-of-Flight Mass Spectrometers. The Pegasus BT is the first benchtop Gas Chromatography Time-of-Flight mass spectrometer to deliver higher sample throughput, better chemical information, and lowered maintenance costs. LECO Ref. #209-300

In partnership with University of Minnesota

The QuadJet SD is a benchtop GCxGC solution, utilizing the sensitivity of flame ionization detection (FID) combined with the increased chromatographic resolution found in two-dimensional gas chromatography. LECO Ref. #209-184

Peak tailing and internal standard reproducibility often make quantitative analysis of polycyclic aromatic hydrocarbons (PAHs) particularly challenging. The addition of a complex matrix only makes experiments even more problematic.

Using a combination of comprehensive two-dimensional gas chromatography (GCxGC) and high performance time-of-flight mass spectrometry (TOFMS) found in the LECO Pegasus BT 4D, PAHs are separated from matrix interferences using both orthogonal column phase selectivity and additional extracted ion mass precision.

RESTEK consumables for GC and GCxGC-TOFMS

Separation Science Service and Support for USA customers.

Lorne Fell [LECO] briefly discusses comprehnsive two-dimensional gas chromatography, and demonstrates how to establish GCxGC methods utilizing the Simply GCxGC software.

John Heim & Jeff Patrick [LECO] discuss GCxGC-TOFMS benefits to metabolomic study, with various experiment results analyzed. Originally presented 16 June 2011.

Harness the power of accurate mass and high-resolution mass spectrometry with Spectral Analysis Tools (SAT). Paired with Pegasus® GC-HRT+ and ChromaTOF® software, this toolkit streamlines the identification and quantitation of heteroatomic species in either GC or GCxGC data. LECO Ref. #209-262

Ray Marsili [Marsili Consulting Group] explores how food packaging can impact flavors of products through leaching and other contamination means. Preseted 19 September 2013.

Peter Gorst-Allman [LECO] discusses the usage of GCxGC TOF-MS (with the Pegasus BT 4D) to analyze dioxins in samples, in accordance to EPA 1613. Originally presented 07 March 2013.

An overview of GCxGC mass spectrometry and improved flavors in vegetarian foods. ChromaTOF Tile was utilized to review chromatography data. Presented by Hans-Gerd Janssen, Science Leader Unilever Research, Professor Recognition-based Analytic Chemistry at Wageningen University & Research, and Ed Rosing, Analytical Flavour Scientist at Unilever R&D Vlaardingen.

Liz Humston-Fulmer [LECO] discusses how the Pegasus BT (with L-PAL3 Autosampler) identifies analyte changes due to aging of commercially available IPA beer. Presented on 11 April 2017. 

Jack Cochran [Restek] discusses the increased peak capacity in two-dimensional comprehensive gas chromatography, examining samples from oil spills and other large pollution events. Presented 24 September 2012.

Peter Haglund [Umeå University] explores two-dimensional gas chromatography techniques in various environmental samples, including house dust, garbage dump leachate, biota (flora and fauna of a given region), and municipal sewage treatment plants. Presented 20 June 2013.