Latest News and Application Notes

Towards an Even Better Tasting Veggie Burger with GCxGC-MS

August 27, 2021

Sustainability is on everybody’s mind these days. Companies want to create products that are better for the environment and consume fewer resources. Unilever is no exception. This forward-thinking flavor company has recently been pushing to develop new and delicious plant-based protein substitutes that are more sustainable than meat-based protein but no less healthy (or, preferably, even more healthy!). However, as Unilever scientists Hans-Gerd Janssen and Ed Rosing explain, nature made a pretty delicious protein in the form of meat, with a very distinct flavor and mouth-feel. Creating a substitute isn’t easy.

Read More…

Beneath the Peel: Characterizing Citrus Aromas with GC-TOFMS

August 6, 2021

Both lemons and limes have strong citrus odors, but the difference between these fruits is wide at an analyte level. Identifying these differences is not as easy as it first seems, but the Pegasus® BT and the automated data processing software included in its ChromaTOF® brand software make finding the peaks easy.

Read More…

Using GCxGC to see MOSH and MOAH

April 1, 2021

LECO Pegasus BT 4DFood contamination by mineral oil hydrocarbons (MOH), which is usually separated into the subclasses of MOSH (Mineral Oil Saturated Hydrocarbons) and MOAH (Mineral Oil Aromatic Hydrocarbons), is a growing concern across the EU and the world. In 2012, the European Food Safety Authority flagged them as a potential health concern, and the increasing research since then has only been expanding our understanding of these hydrocarbons. However, the two main analytical methods suggested to quantify these substances, either an off-line method consisting of a solid phase extraction (SPE) followed by a GC-FID analysis or an on-line, LC-GC-FID method, both can result in inaccuracies and leads to challenges in the end results. Some of these inaccuracies are due to the lack of a strong and robust confirmatory method. However, a GCxGC-TOFMS system, like LECO's Pegasus® BT 4D can help unveil the complexity of contaminated food samples. It has also been suggested by the EFSA to be used as a confirmatory tool in case of uncertain results from other standard methods.

Read More…

ChromaTOF® Tile for GCxGC Analyses

January 29, 2021

LECO has released a revolutionary new data analysis software for GCxGC data: ChromaTOF Tile. This software provides an industry-first data comparison tool that identifies statistically significant differences between classes of samples, reducing days-to- weeks of work down to hours, or even minutes. Based on Dr. Robert Synovec’s tile-based Fisher ratio analysis, ChromaTOF Tile partitions the data into a set of regions (tiles) and compares regionalized data. This allows it to disregard normal variances of alignment shifts to focus on where the actual differences are, so users can stop looking at their data and start actually using it.

Read More…

The Difference between Frankincense and Myrrh

December 16, 2020

It's that time of year again, when holiday songs play 24/7 on the radio and people start wondering what, exactly, frankincense and myrrh are and why they make good gifts. LECO placed these two oils in a Pegasus® BT 4D to see the difference.

Read More…

ASMS in Review: Frank Dorman, Penn State

August 20, 2019

Frank Dorman, an Associate Professor of Biochemistry and Molecular Biology at Penn State University, spoke at our ASMS breakfast seminar about his experience using our Pegasus BT 4D benchtop GCxGC-TOFMS to analyze environmental contamination in the Susquehanna river. Due to the increasing chemical complexity of the environment, GCxGC-TOFMS with its Non-Targeted compound analysis is the ideal technology for these intricate samples.

Read More…

ASMS Breakfast Seminar: Replacing LECO's Pegasus HT with their Pegasus BT GC/TOF-MS Instruments for High Throughput Metabolomics: Our Experience

May 18, 2018

Abstract

Our laboratory runs high sample throughput metabolomics utilizing GC/MS analytics. For many years, we have utilized LECO Pegasus III and Pegasus HT GC time-of-flight mass spectrometers (GC/TOF-MS). The robustness, data acquisition speed, and affordability coupled with ChromaTOF® brand software made these instruments ideal for our high throughput metabolomics application. That said, when LECO recently introduced the benchtop model Pegasus BT GC/TOF-MS with better sensitivity and wider dynamic range, both valuable attributes for metabolomics, we were most interested. In the end, we replaced all six of our older Pegasus instruments with six of the newer model.

Read More…

What's Behind Your Beer's Aroma This St. Patrick's Day?

March 16, 2018

St. Patrick’s Day is an annual feast day celebrating the patron saint, St. Patrick, and is a national holiday in both Ireland and Northern Ireland. The holiday, taking place on March 17th, has a number of traditions associated with it here in the USA as well—wearing green, eating the traditional Irish corned beef and cabbage, the Chicago River is dyed green every year, various cities have celebrations (NYC’s parade features over 250,000 marchers)—and then there is beer.

Beer has long been a popular indulgence in St. Patrick’s Day celebrations, and some believe this is due to the Catholic Lenten restrictions on eating and drinking being lifted for one day on the holiday, therefore beer became a staple. And consumption is high, according to WalletHub, 152.5% more beer is sold on St. Patrick’s Day than usual! 

Read More…

Make sure your ChromaTOF brand software is up-to-date!

January 5, 2018

Not sure if you have the most up-to-date software on your instrument so you can obtain the best results? Below is the current software versions for each Pegasus instrument model, if you're not up-to-date, check with your LECO representative.

Read More…

Stay Updated! Subscribe today

Recent News