Pegasus GC-HRT 4DHigh Resolution GCxGC-TOFMS
The Pegasus GC-HRT 4D combines the highest performance GCxGC and TOFMS tools on the market with High Resolution Deconvolution (HRD). Ideal for the most complex samples, users are able to find more analytes than ever before and confidently identify unknown components. ChromaTOF brand software, designed specifically for HRT+ instrumentation and GCxGC support, adds advanced qualitative and quantitative capabilities to an all-in-one user-friendly data system.
Features
- A sleek, benchtop design saves valuable space in the laboratory.
- Industry-leading sensitivity helps you find and quantify an unlimited number of analytes, while working with proprietary deconvolution algorithms to yield clean, high-quality spectra.
- Complete historical record of mass spectral components for each sample is retained for future data mining.
- The tried-and-tested reliability and durability of our Pegasus brand in a convenient benchtop unit.
The Pegasus GC-HRT+ 4D provides the capability to obtain high-resolution mass spectral data using comprehensive two-dimensional gas chromatography (GCxGC). GCxGC provides high peak capacity by trapping compounds eluting from the first chromatographic column and then systematically injecting them into the second column to obtain the second separation. The separation on the second chromatographic phase is completed in seconds, resulting in very narrow chromatographic peaks (<200 milliseconds).
To obtain sufficient data to define a 2D chromatographic peak, acquisition rates of at least 100 spectra/second are required. With the Pegasus GC-HRT+ 4D, data acquisition rates of up to 200 spectra/second can be utilized, giving sufficient data density to obtain spectral deconvolution of the chromatographic peaks. Combined, LECO’s GCxGC chromatography and the Pegasus GC-HRT+ provide the ultimate solution in complex sample characterization.
Related News or Stories
Check out our chat with Bob Nelson and Chris Reddy from Woods Hole Oceanographic Institution (WHOI) about their work discovering DDT at the Palos Verdes Mass-Transport Dumpsite. Chris and Bob collected samples and used LECO’s Pegasus® GC-HRT+ 4D to uncover what exactly was spilling out of the hundreds of barrels onto the ocean floor.
Sample treatment is central to accurate environmental analysis, especially for emerging contaminants like microplastics and PFAS. Traditional methods often generate significant waste, prompting innovation in more efficient and environmentally friendly approaches such as advanced extraction techniques, novel sorbent materials, and automated or miniaturized systems. New tools, including drone-based and 3D-printed devices, are also expanding monitoring […]

Customer Testimonials
Combining LECO's high resolution mass spectrometry with comprehensive gas chromatography, multiple sample handling options such as SPME, Pyrolysis and TD along with full automation has created a world class laboratory of which we are all very proud....Read the Full Testimony
Head of Characterisation & Analytics and Head of Mass Spectrometry
University of Southampton
Our metabolomics research has utilised a LECO Pegasus 4D for over 15 years. Total downtime has probably been less than 20 days for the entire 15 years. When we do have a problem or even a question about using the instrument, LECO are very swift to respond, resolve the issue and offer support and assistance usually within a day of contacting them, and quite often on the same day. The source has nev...Read the Full Testimony
Technical Specialist - Metabolite Profiling
CNAP | University of York
I started working with the PEGASUS GC-HRT+ 4D back in my student years. As a novice researcher, with no experience working with similar devices and no training, it was not easy at first. However, after years of working with this instrument and when compared with other sophisticated equipment in the field of gas chromatography – high-resolution mass spectrometry, I can confidently say that th...Read the Full Testimony
Junior Researcher
Northern (Arctic) Federal University
