Pegasus GC-HRT High Resolution Time-of-Flight Mass Spectrometer


ChromaTOF Brand Software

Folded Flight Path Technology

Folded Flight Path Technology

R=50,000 ; Mass accuracy < 1ppm


Developed to withstand the rigor of modern analytical demands, the Pegasus GC-HRT provides high performance Mass Spectrometry capabilities.  Achieve maximum efficiency with efficient data acquisition speeds, high mass accuracy, superior relative isotopic abundance, ultra high and mass resolution over a wide linear dynamic concentration range.  All these technical features at your fingertips and available simultaneously – No compromises.

Analytical chemists benefitting from this outstanding technology work in the fields of Environmental Contaminants and Persistent Organic Pollutants (POPs), Petroleum, Flavour and Aroma, Metabolomics, Pharmaceuticals and Food Safety applications.

High-confidence analyte identification is readily available using LECO’s own Folded Flight Path™ (FFP)™ technology that enables resolution of 50,000 FWHM, mass accuracies less than 1 ppm, and acquisition rates up to 200 spectra/second.  Also delivering high-integrity isotopic abundance measurements to facilitate information rich sample data.  Signal acquisition is achieved using patented KADAS™ technology to provide high-value, high-integrity output under the most demanding acquisition conditions available with minimal file storage size.  These advances in technology are paired with LECO’s exclusive ChromaTOF-HRT™ software, which utilizes True Signal Deconvolution for accurate peak identification.


Benefits of LECO Pegasus HRT :

  • Accurate recording of rich isotopic signatures given by the wide in-spectrum dynamic range afforded by TOFMS
  • Remove the need of multiple sample injections by taking advantage of the extended linear dynamic range afforded by LECO TOFMS technologies
  • Confident analyte identification given by accurate recording of isotopic patterns
  • Easily achieved mass spectral resolving power in excess of 10,000 at full width 10% for Dioxin and Furan analysis needs (figure X).
  • Easily extract both targeted PCBs and additional persistent organic pollutants (POPs) in a single acquisition for a comprehensive analytical approach
  • Unequivocally identify impurities
  • Selectivity quantify accurate m/z signals to provide identification of clear and substantial differences in blood plasma metabolomic studies
  • Quantify sulphur and nitrogen species accurate in and confidently free from bias in complex petroleum and crude oil samples
  • Facilitate formula elucidation of unknown drugs and drug metabolites with accurate mass measurements


The Pegasus GC-HRT represents the next generation of high-performance mass spectrometers for the GC-MS market. This approach to data analysis makes no compromise in speed, resolution, mass accuracy, or dynamic range. Understanding and comparing different foods and plant species with the aim of novel food development for increasing health benefits, hardiness and disease resistance, nutrient content or pharmacologically active ingredients is of increasing importance.  Simplify sample preparation, omitting derivatization steps, and keeping the ability to detect a range of analytes and to differentiate the relative levels between strains of a given organism such as rice is possible using the Pegasus GC-HRT.

Features and Benefits :

  • KADAS® (Kinetic Algorithmic Data Acquisition System) used to provide high-value, high-integrity output under the most demanding acquisition conditions available
  • Three modes of operation (Nominal, High Resolution, and Ultra-High Resolution) providing resolution of up to 50,000 FWHM
  • ChromaTOF® software utilizes True Signal Deconvolution® for accurate peak identification
  • While some systems on the market offer users a choice between acquisition speed or resolution, the Pegasus GC-HRT provides scientists with an unprecedented combination of speed, resolution, mass accuracy, isotopic abundance, and dynamic range – a "no-compromises" approach to data analysis.
  • EI and CI source capabilities offer expanded flexibility
  • Spectrus software compatible with LECO’s new High Resolution TOFMS (HRT) instrumentation from Advanced Chemistry Development Inc. (ACD/Labs).


LECO’s versatile instrumentation can be used to perform a wide range of applications. Please find below a selection of application notes for the most popular applications. Contact our sales and application specialists for more details.

How Comprehensive is Your Analysis? Human Molecular Profiling by HR TOF-MS

The LECO Pegasus GC-HRT instrument was used to monitor behaviour (e.g., drug abuse) and also to perform more comprehensive molecular profiling following a suitable urine sample preparation step.Learn more...

Quantitative Analysis of GHB in Hair in forensics

The potential of the GC-HRT system together with the unique ChromaTOF-HRT's High Resolution Deconvolution (HRD ) and Target Analyte Finding (TAF) has been revealed to be valid tool for the determination and quantification of the GHB in hair samples and, also to make a screening of other non-target chemicals coming from the same sample such as acids, amino acids, diacids, fatty acids, esters, amides and monoacylglycerides.Learn more...

Identifying Disinfection Byproducts in Treated Water

A combination of electron ionization (EI) and chemical ionization (CI) accurate mass data for identification and elemental composition determination of previously unknown disinfection byproducts.Learn more...

Complementary LC- and GC- mass spectrometry techniques provide broader coverage of the metabolome.

Cross-platform metabolomics data analysis combining AB Sciex LC/MS, LECO GC/MS and Genedata Software. Ref: 203-821-482Learn more...

Comprehensive characterization of green leaf tobacco extracts using GC-HRT

The Pegasus® GC-HRT is a tool which provides a solution to one of the key challenges in metabolomic studies... confident identification of metabolites. Ref: 203-821-481Learn more...

Unambiguous Pesticide Identification in Cigarette Tobacco

Confidently identify target analytes and also maintain the ability to screen for other components such as additives and natural ingredients. Ref: 203-821-478Learn more...

Differential Analysis of Olive Oils with Pegasus® GC-HRT and ChromaTOF-HRT® Reference Feature

Authentication of food commodities using high resolution mass spectrometry and automated software tools for confidence and quality assurance. Ref: 203-821-477Learn more...

Comprehensive Analysis of Drug Residues

Comprehensive Analysis of Drug Residues from a Confiscated Pipe: GC-High Resolution Mass Spectrometry with Chemical Ionization to Facilitate Unknown IdentificationLearn more...

Jet Fuel Analysis

Jet Fuel Analysis by High Resolution TOFMS: The Combined Power of EI, CI, and Accurate MassLearn more...

Enhanced Metabolite Profiling

Enhanced Metabolite Profiling: Hard and Soft Ionization High Resolution Time-of-Flight Mass SpectrometryLearn more...

Identification of Components of Polymer Extract

Identification of Components of Polymer Extracts by Gas High Resolution Time-of-Flight Mass SpectrometryLearn more...

Metabolites, Liver Disease, Library Match

Application of GC High Resolution Time-of-Flight Mass Spectrometry to Mouse Liver Metabolomic AnalysesLearn more...

Dioxins, Persistent Organic Pollutants, Polyaromatic Hydrocarbons

Meeting the Challenges of EPA 1613b Using Gas Chromatography with High Resolution Time-of-Flight Mass SpectrometryLearn more...

High Resolution MS, Time-of-Flight MS, Light Crude Oil

Analysis of Light Crude Oil Using Gas Chromatography—High Resolution Time-of-Flight Mass SpectrometryLearn more...

Persistent Organic Pollutants, Polybrominated Diphenyl Ethers, Polychlorinated Biphenyls,

Analysis of Persistent Organic Pollutants in Complex Matrices by Gas Chromatography—High Resolution Time-of-Flight Mass SpectrometryLearn more...

Options & models


Various options are available for this product. Contact our sales and application specialists to select the right configuration for your application.
API source types ESI, APCI, Universal mounting bracket provided, allowing compatibility with Desi (Prosolia) or Nanomate (Advion) sources, among others


Each instrument can be configured to meet your individual lab needs. Contact our sales and application specialists to select the right configuration for your application.
Pegasus GC HRT Pegasus GC HRT system including ChromaTOF® single software platform with integrated True Signal Deconvolution