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Leco - Chromatography - GC x GC-TOFMS

Find and quantify an unlimited number of analytes, in every run, every time you use Leco GC-TOFMS. Complete historical record of mass spectra components for each sample for future data mining. You will no longer suffer spectral distortion-based MS analysis. Purified spectra can be used for targeted compound identification. Reliability and durability that have been tested over time with low-maintenance source, which practically eliminates downtime.

Available models

Pegasus GC-HRT+4D

LECO’s most recent innovation in the gas chromatography sector, the Pegasus GC-HRT+ 4D, provides users with the unprecedented ability to investigate complex samples and identify unknown analytes. Combining the highest performance GCxGC and TOFMS on the market with High Resolution Deconvolution® (HRD®), users are able to find more analytes than ever before and identify components with ultimate confidence.

These advances in technology are paired with LECO’s ChromaTOF® brand software, which is tailored to get the most out of your High Resolution data when used in conjunction with NIST and Accurate Mass Libraries. Further features such as the generation of Pseudo-Molecular ions via Chemical Ionization, retention time matching, isotope patterns, and mass accuracy of deconvoluted fragments, all lead to confident identification.

With mass accuracies of 1 ppm and peak capacity potential at least two times greater than any mass spectrometer currently available on the marketplace, the Pegasus GC-HRT+ 4D is the solution to winning the fight against coelution and analyzing even the most complex samples.

Pegasus 4D-C

GCxGC, combined with the Pegasus HT-C TOFMS, changes the dynamic when analyzing complex samples. No longer limited to two analytical dimensions, the Pegasus 4D-C system provides you with four dimensions of analytical resolution for a more complete sample analysis. With LECO GCxGC, you are able to detect hundreds-to-thousands more compounds than previously seen using conventional one dimensional GC.

Powerful, easy-to-use Windows®-based ChromaTOF® software simplifies component identification—providing a significant increase in efficiency and productivity.


The GCxGC offers you the resolving power of a GCxGC system combined with advanced ChromaTOF® software for an increase in efficiency and productivity for samples that are too complex for a single-channel detector system. Ideal for everyday quality control and production needs, these GCxGC systems provide you with all the tools necessary to achieve exceptional results.

Transfer analytical methods developed on your Pegasus 4D GCxGC-TOFMS to a cost-effective GCxGC system for routine analysis.

  • Agriculture
  • Biopharmaceutical and Biotechnology
  • Chemical
  • Education & Academics
  • Energy
  • Food & Beverage
  • Mining & Minerals
  • Oil & Gas
  • Polymers, Plastics and Rubbers
  • Powders & Pigments / Coating
LECO CorporationSince the introduction of the first rapid carbon determinator in 1936, industries around the world have trusted LECO Corporation to deliver technologically advanced products and solutions for organic and inorganic analysis. Today LECO is recognized globally as a leader in the development of high-quality analytical instrumentation, next generation mass spectrometers and chromatographs, metallography equipment, and consumables. 
[Leco, Chromatography, GC, GC x GC, TOFMS, Pegasus, 4D, ECD, FID, 4D-C, HRT]