The Next Big Thing in GC-Mass Spectrometry is Here
Pegasus BTX

Pegasus BTX

The BTX is the culmination of nearly 30 years of developing the ultimate TOF mass analyzer for GC and GCxGC applications.

Introducing New TOF Tech

The BTX is the latest generation of LECO’s Benchtop (or BT) GC-TOFMS series. For the past 8 years, the Pegasus BT series has proven reliability in labs performing unbiased, non-targeted analyses and tackling difficult matrices. A diverse spectrum of investigators—including those in industries like Petroleum, Life Sciences, Environmental, Pharmaceutical, Food Safety, and others—have gained deeper insights into the complex chemistries of their samples thanks to the incredible Pegasus BT.

From its predecessor, the Pegasus BTX retains the innovative StayClean® ion source, blinding fast full-spectrum acquisition rates, and 5 orders of linear dynamic range—all seamlessly orchestrated by ChromaTOF® software. A novel ion path and detector design delivers femtogram-level sensitivity in a miniscule footprint—analytes that previously eluded even advanced targeted GC-MS systems are unveiled with rich mass spectra. At LECO, technological innovations never jeopardize our commitment to instrument quality and robustness: that’s why all new BTX systems include a two-year detector warranty, as a testament to LECO’s investments in ion path integrity.

Pegasus BTX Specifications
Ionization SourceElectron Ionization (StayClean® Direct Extraction open style)
DetectorScintillator - Photomultiplier Tube with extended lifetime
Mass AnalyzerTime-of-Flight Mass Analyzer with Dual Stage single Reflectron
Mass Range10 - 1500 m/z
Mass Resolution>1,100 at m/z 219
Spectral Acquisition Rate1-500 spectra/second - up to 35,000 transients/second
Detection Limit
(GC carrier gas - Helium)
10fg OFN with Quant S/N > 10
Detection Limit
(GC carrier gas - Hydrogen)
10fg OFN with Quant S/N > 10
IDL< 4fg for 8 replicates of 10fg OFN injected
Precision< 5% RSD for 15 injections of 100fg OFN
Linear Dynamic Range5 orders of magnitude
Scientist loading GCxGC Sample into Pegasus BTX

Working in omics applications, I really need instrument data that is sensitive as well as robust and offers the possibility to do non-targeted analysis. To be honest, so far, this is exactly what we get with the new Pegasus BTX. After testing food and biological matrices on it, I can see that the system is highly sensitive and providing all the added value of the GCxGC separation, which is perfect for my types of samples.

—Dr. Pierre-Hugues Stefanuto, Lead Scientist and Lecturer
University of Liège, Organic Biological Analytical Chemistry Group
Characterizing Synthetic Aviation Fuels

Characterizing Synthetic Aviation Fuels

Characterization of synthetic paraffinic kerosene and traditional aviation turbine fuel is critical to meet regulatory requirements.

The BTX can help obtain commercial approval
Comparing Thyme Aroma Profiles

Comparing Thyme Aroma Profiles

Volatile and semi-volatile aroma profiles of dried thyme from different countries helps identify chemical differences.

How did the BTX sniff out the differences?
Screening Targets and Identifying Unknowns

Screening Targets and Identifying Unknowns

New analytical methods are necessary to monitor increasing levels of per- and polyfluoroalkyl substances (PFAS) in the environment and food chain.

Read how the BTX expands PFAS analysis
Unveiling Hidden Aroma in Basil

Unveiling Hidden Aroma in Basil

The BTX's enhanced peak capacity, improved chromatographic separation, and heightened sensitivity can uncover complex low-level aroma profiles.

What secrets did the BTX uncover?
Non-Target Analysis of Molasses

Non-Target Analysis of Molasses

GC-TOFMS, coupled with advanced deconvolution algorithms, can identify complex aroma profiles of samples like molasses.

Data gets 'unstuck' with the Pegasus BTX
Improving Sustainable Biofuel Quality

Improving Sustainable Biofuel Quality

Heteroatomic compounds have the potential to disrupt pyrolysis refining and treatments.

The BTX can help keep engines running smoothly
Identifying Drinking Water Contaminants

Identifying Drinking Water Contaminants

Wildfires increase the risk of negative chemical reactions with municipal water treatment processes.

Learn how the BTX identifies known and unknown contaminants
Applications Exploration

Applications Exploration

Nick Jones, LECO Global Applications Director, discusses application work being done using the Pegasus BTX.

Join Nick to further explore BTX capabilities

Be among the first to put a Pegasus BTX in your laboratory.

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