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State of the Art Technology – Aroma, Flavour, and Fragrance

We explore the capabilities of LECO technology and the impact it is having on overcoming the challenges faced in the Aroma, Flavor, and Fragrance industry.

Discovery Workflow Best Practices for Environmental Contaminants

When you don't know what you're looking for, as is often the case with environmental contaminants and pollutants, the task can seem daunting, but high-resolution TOFMS and GCxGC is a powerful combination for non-target searches. With the tools included with the Pegasus® HRT4D and the Multi-Mode Source™ (MMS™), identification of unknowns can be vastly improved and assigned higher confidence.

GCxGC Analysis Workflow with ChromaTOF Tile

Small time savings throughout the workflow can add up to big savings. See aroma and flavor examples of how automated sample prep and elevated Time-of-Flight Mass Spectrometry (TOFMS) analysis, followed by software solutions to compare and evaluate data and results, can save your lab time and resources.

Fast GC/Hydrogen Method Transfer – Overview and Examples

Helium is becoming an increasingly limited natural resource; using Hydrogen to achieve increased chromatographic throughput in GC applications is attractive. Both have advantages and disadvantages. LECO experts investigated the use of Hydrogen as a carrier gas for GC-TOF-MS analysis. Nick Jones, LECOs Global Application and Development Director (Separation Sciences) presents the method transfer approaches used, the technological benefits, and application examples in the presentation below.

Environmental Forensic Investigation of Wastewater Applied to Agricultural Fields – What Do We Not Know, and How Do We Find It?

How do we find what we don't specifically look for? This presentation will look at non-target GCxGC for environmental forensics, or exposomic analysis, of wastewater, specifically the semivolatile organic fraction, and what can be done when discovered non-targets may present health impacts. Frank L. Dorman, Penn State University Dept of Biochemistry and Molecular Biology & Dartmouth College Dept of Chemistry

Breath Analysis – Investigating the Human Volatome

High Temp GCxGC of Light Crude Oil and High Boilers

Science from Beyond the Grave: a Virtual GC Symposium

Three GC/MS Experts embrace the 'spookier' side of mass spectrometry.

Jane Hill, from the University of British Columbia, brings her expertise on 'omics and medical diagnostics in Disease: Trick or Treat? Metabolomics is changing how we monitor our health

Albert Lebedev, professor at the Faculty of Chemistry at Moscow State University, has suggestions and advice for what to do if you meet a mummy (and happen to have access to mass spectrometry!) in What Mass Spectrometry can tell you about 5000 year old Mummies

Shari Forbes, Director of Canada's Secure Site for Research in Thanatology, will finish the symposium with a look into GCxGC mass spectrometry and the wider range of research and training that can come from Canada's first body farm in Death, Decomposition and Dogs

Application of Two-Dimensional Gas Chromatography with Mass Spectrometric Detection for Analysis of Pesticide Residues in Foodstuffs

The Czech Agriculture and Food Inspection Authority has been using GCxGC-TOFMS for the analysis of pesticide residues in food of plant origin since 2005. Radim Stepan will talk about the advances in the instruments and the analyses they have used for pesticide residue analysis in cooperation with the University of Chemistry and Technology Prague.

Food Safety: A Journey Beyond the MOSH&MOAH Hump in Food Determination

The current analytical method for the quantitative determination of Mineral Oil Saturated Hydrocarbons (MOSH) and Mineral Oil Aromatic Hydrocarbons (MOAH) is LC-GC-FID, but the chromaticagraphic profile obtained is too often just a hump of unresolved substances. However, GCxGC-TOFMS/FID is the most promising solution to characterize MOSH and MOAH in detail and to detect markers that can help identify and act on the source of contamination. Giorgia Purcaro [University of Liege] will introduce the challenges of MOSH/MOAH analysis and talk about what adding a GCxGC-TOFMS analysis to your process can do for your results.

Multiclass GCxGC Method for Cannabis Products

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.

Analysis of GCxGC-TOFMS Data using Tile-Based Fisher Ratio

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]

Characterization of Beverage Products Containing Cannabidiol

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

Cannabis Potency Testing and Terpene Profiling

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

Cannabis Potency Testing and Terpene Profiling using GCxGC TOF-MS

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

Characterization of Beverage Products Containing Cannabidiol (CBD) by GCxGC TOF-MS

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

Simply GCxGC

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

Flow Modulation: A Simple Approach to Resolving Complex Mixtures

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

Analyzing Light Crude Oil and High Boilers with GCxGC

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).

Single Substrate Analysis with GCxGC TOF-MS

"Better, Greener, Faster" Webinar presented by Bob Nelson and Chris Reddy, from the Woods Hole Oceanic Institution, September 2017.