Characterize natural fragrances; matrix and unravel complex essential oils. Identify taints and off-flavors to allow the improvement of quality and profitability. See specific examples with our app notes and webinars to learn how LECO's GC and GC×GC technology can empower your laboratory, or get detailed information about LECO's instruments for sensory, flavor, and fragrance analysis.
Recent Events / On Demand Presentations
► "Enhanced GC-MS Workflow Solutions Webinar"
Learn how state of the art instrument and software solutions come together, to enhance your one- and two-dimensional gas chromatography applications (GC-MS and GCxGC-MS).
Please click here to watch the video.
► "1st LECO European Wine Workshop"
LECO´s 1st European Winde Workshop is now available as on-demand version in English and Spanish language. Watch the various presentation of experts on GC-TOF-MS / GC×GC-TOF-MS for wine analyses and learn how GC-MS can enhance your daily analysis. After a small introduction to our LECO Separation Science portfolio, six specific talks from volatile characterization to aroma analysis of wine will be presented.
Click here to watch the video.
► "Challenges and Solutions in Aroma Profiling (MDCW 2022)"
Did you miss LECO's webinar during MDCW 2022?
Lena M. Dubois' presentation discussing solutions to challenges faced in ...
Click here to watch the video.
► "Towards even better tasting veggie foods"
Hans-Gerd Janssen (Unilever) and Ed Rosing (Wageningen University) discuss untargeted GCxGC-MS data interpretation for advancement ...
Click here to watch the video.
► "Understanding Food Off-Flavors and Malodors"
Utilizing Gas Chromatography-Olfactometry (GC-O) can help identify active odor compounds in complex mixtures. But, what happens if GC-O ...
Click here to watch the video.
► "Flavor Ingredient Analyses through GCMS"
Marlene Moskowitz, PhD, Analytical Chemist at McCormick, discusses how their labs leverage Gas Chromatography Mass ...
Click here to watch the video.
Aroma Analysis Library & Publications
PEGASUS® BT GC-TOFMS

The tried-and-tested reliability and durability of our Pegasus brand in a convenient benchtop unit gives you more uptime, improved chemical data, and an increase in overall productivity and efficiency.
Application Notes - PEGASUS® BT GC-TOFMS
► Pairing Olfactory Detection with GC-MS to Clarify Identification of Isomers
► Characterization and Comparison of Whiskey Aroma Profiles with GC-TOFMS and Sync
► Differentiation of Baijiu Spirits
► Analysis of Citrus Essential Oils
► Comparison of Traditional Chardonnay and Buttery Chardonnay
► Sensitive Analysis of Tea Tree Essential Oil
► Essential Oil Characterization
► Chemical Aroma Profile of Dark Chocolate Bar
► Track Aging of an American IPA Beer at Different Storage Temperatures
Application Notes - PEGASUS® BT 4D GC×GC-TOFMS
► Comprehensive Evaluation of Scotch Whisky Aroma Profiles Using SPME-GC×GC-TOFMS
► Frankincense and Myrrh: Visual Characterization and Comparison of Essential Oils
► Characterization of Citronella Essential Oil
► Characterization and Roast Level Differentiation of Coffee
► Differentiation of Honey Aroma Profiles
► Improved Characterization and Differentiation of Perfume Samples
Further Instrument Portfolio
Browse our line up of scientific analytical products sensory, flavor, and fragrance analysis to find the appropriate instrument for your specific purposes.
LECO's QuadJet™ SD is the ideal solution for samples which arrive in your lab. By combining the sensitivity of Flame Ionization Detection (FID) with the increased chromatographic resolution of comprehensive two-dimensional gas chromatography (GCxGC), the QuadJet SD delivers a better measure of the actual components of your sample than a straight GC analysis. No other system available on the market can deliver the same reduction in noise and error as the QuadJet SD.
Available exclusively from LECO, our L-PAL3 autosampler offers increased vial capacity, discrimination-free GC injections (ultrafast injections), an automatic tool exchange to switch between injector types (liquid, headspace, or SPME), minimized carryover, and the sensing of vial bottoms to avoid mis-injections.
The Easier Way To Make GC×GC Part Of Your Every-Day Analysis
Simply GC×GC from LECO is a free tool designed to walk you through the steps of creating an optimized GC×GC method for your complex samples. Create a GC×GC method from scratch, or convert an existing 1D method to GC×GC.
GC×GC Flow Modulator
Our innovative FLUX GC×GC flow modulator was designed with one goal in mind—to make GC×GC more routine, accessible, and easier for you.
Thermal modulation delivers the highest performance of any available modulator for GC×GC. Other types of thermal or valve-based modulators do not match up to the ruggedness, reliability, and performance of LECO's GC×GC modulator.
Ionization Source For Gas Chromatography Mass Spectrometry
The innovative Multi-Mode Source™ (MMS™) takes all of the advantages of the three most common ionization modes – Electron Ionization (EI), Positive Chemical Ionization (PCI), and Negative Chemical Ionization (NCI/ECNI) – and combines them into one easy-to-use source. No more hardware switching, no more alignment issues:
with the MMS, changing ionization modes is as easy as a click of a button.
Developed exclusively by LECO, ChromaTOF® is uniquely designed to meet the needs of today’s laboratory professionals by processing and analyzing the large amounts of data that are acquired with our time-of-flight instruments.
Developed exclusively by LECO, ChromaTOF® is uniquely designed to meet the needs of today’s laboratory professionals by processing and analyzing the large amounts of data that are acquired with our time-of-flight instruments.
Bring the Power of Accurate Mass and Confidence to your Identification Problems
LECO's Identification Grading System (IGS) eases data review by allowing users to quickly see, justify, have confidence in, and report on which chemicals are in a particular sample.
If you want to learn more about our products and solutions for aroma analysis, book a free ticket to our Virtual Trade Show, or schedule an online demo for a deeper insight in our instruments.