Monday, 10 December 2018 17:38

TGA801 Thermogravimetric Analyser | LECO

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TGA801 | Thermogravimetric Analyser | LECO

TGA801 Thermogravimetric Analyser
Moisture, Ash, Volatile Content, and Loss-on-Ignition

The TGA801 maintains the core capabilities and reliability of previous generations of LECO macro TGA instruments, while providing key improvements in performance and robustness. State-of-the-art hardware combined with a touch-screen software platform and rugged design provides accurate, high-precision thermogravimetric constituent analysis—moisture, ash, volatile content, and LOI in various organic, inorganic, and synthetic materials. Complying with ASTM standardized methods, the TGA801 is applicable to many industries and applications including coal, cement, catalyst, foods, and feeds.

Macro thermogravimetric analysis (nominal 1 g) replaces the often slow, labor-intensive, traditional manual gravimetric techniques that require multiple sample weighing and transfer steps involving ovens, muffle furnaces, and desiccator equipment. Flexible method settings, automation, and hardware capabilities deliver an automated analysis process while requiring only the manual measurement of the initial sample mass, for maximum productivity in your lab.

Cornerstone Mobile remote software keeps the user updated from their smartphone, tablet, or PC on the instrument's analysis batch progress, performance, and status while away from the instrument.

  • Automated analysis of up to 19 samples for increased throughput.
  • Automatic end point recognition based upon sample mass constancy
  • Stable and precise mass measurements throughout the analysis cycle using an integrated, thermally isolated 0.0001 g low drift balance
  • Precise furnace temperature ramping and set point control provides excellent temperature accuracy with low temperature overshoot
  • Rotating automation sequence provides uniform exposure of all samples to the furnace conditions
  • Automated control of furnace atmosphere and gas flows (air, nitrogen, or oxygen)
  • Flexible method settings enable configuration of system to emulate classic gravimetric test method requirements


The TGA801 is ideal for the following applications: Coal and Coke, Combustion Residues, Biomass Materials, Catalyst Materials, Soil and Ore Materials, Ceramics, Gypsum and Building Materials, Hydrated Lime and Cement, Flour and Milled Products, Feed Materials, and Resins and Polymers

The TGA801 Thermogravimetric Analyzer determines weight loss, including moisture, ash, volatile content, and Loss-on-Ignition (LOI), in various organic, inorganic, and synthetic materials. Weight change is measured as a function of temperature as samples are exposed to a temperature program in an atmosphere-controlled environment. The multi-sample furnace design allows for simultaneous analysis of up to 19 samples.

Analysis begins when samples have been logged in and empty crucibles have been loaded into the sample carousel. After empty crucible weights have been automatically recorded, the user is prompted to load samples. Once loaded, sample weights are recorded and the method-specified furnace-temperature program begins. One of three analytical gases (air, N2, or O2) are used to control the atmosphere inside the furnace during the course of an analysis. Temperature, temperature ramp rate, atmosphere, and duration (fixed time or mass constancy) are selectable for each method step. Moisture, volatile, and ash steps are most commonly utilized and are available as preset method steps.

The mass change of each sample is sequentially monitored throughout an analysis. Crucibles are automatically indexed to the position above (and lowered onto) the balance pedestal where sample weights are recorded. Percent mass change is typically reported at the end of each step; although alternative and additional calculations can be specified by the user in the method.

An external PC with LECO Cornerstone® brand software manages all of the quantitative calculations and saves all of the data.

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TGA801 Details


  • Models
    1. TGA801 Thermogravimetric Analyzer 

    1. TGA801 Dual Furnace Package 

Wednesday, 08 August 2018 17:41

ChromaTOF® | Brand Software | LECO

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ChromaTOF® | Brand Software | LECO

ChromaTOF® Brand Software

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. ChromaTOF offers seamless control of both the instrument and its accessories, as well as an intuitive interface with highly integrated data processing. ChromaTOF is the first mass spectrometry data system to fully accommodate multidimensional chromatographic data (GC×GC).

What Makes ChromaTOF Unique?

  • Data processing is automatically saved within the file system—no extra steps are needed and you can always come back to where you left off
  • Data file system stores and manages meta- and instrument data for you
  • All standard features are contained within one software package; control for some compatible options is built–in and can be activated when needed
  • Easy-to-use, yet powerful, efficient, and robust
  • Frequently updated for improved maintenance and additional feature development


ChromaTOF Version 5.0 encapsulates the industry’s most advanced qualitative and quantitative capabilities in one user-friendly data-handling system. Supports both Pegasus BT and Pegasus GC-HRT+ instrument platforms.


  • Automatic tuning and associated report generation
  • Absolute concentration of analytes based on calibration curve
  • Relative quantitation based on a reference’s or analyte’s curve
  • Quantitation from a single channel detector (Flame Ionization Detection FID)
  • Importable ready-to-use workspace templates for access to preferred user interfaces and reduced set-up times
  • Deconvoluted spectra are easily searched against the latest NIST, Wiley, or user-created library for identification
  • Semi-Quantitative Analysis for the reporting of non-calibrated compounds
  • Integrated control of a variety of sample handling options from LECO and Agilent; contact closure for other vendors
  • Automatically export data to CSV, ANDI MS, NETCDF, or LECO file formats
  • Compatibility with LECO's liquid nitrogen or consumable-free GCxGC thermal modulator
  • GC×GC Classification development tools
  • Integrated control of Agilent 7890GC
  • Search for unknown unknowns with ChemSpider
  • Helpful tools to:
        - Calculate monoisotopic mass from formulae
        - Generate formulae from measured mass
        - Calculate mass resolution needed to separate 2 masses

Features Exclusively for Pegasus GC-HRT

  • Automated unknown identification with High Resolution Deconvolution algorithm
  • Automatic fragment formula generation and corresponding mass accuracies from NIST generated library matches
  • Create and use Accurate Mass Spectral Libraries. New LECO Accurate Mass Library, built for the GC-HRT+ gives you complete confidence that a hit is strong identification. Calculate a similarity score (AML Rank) based on accurate masses
  • User-scalable mass defect plots; e.g. Kendrick mass defect scale
  • Optional Spectral Analysis Tool add-on allows you to use Van Krevelen and Carbon Number versus RDBE (ring double bond equivalents) plots, and many other advantages

Pegasus BT Features

  • Automated unknown identification with NonTarget Deconvolution algorithm
  • Full profile mass spectra at are acquired at 35 kHz with better than nominal resolution
Pegasus Instrument Model Latest
ChromaTOF Version
Major Features

4000 Series

5.10 Addition of the L-PAL3 and
Spectral Analysis Tools

6000 Series

5.10 Addition of the L-PAL3 and
Spectral Analysis Tools
4D, HT (incl “C”)
4.72 Fixes

Added nominal mass data export
with significant fixes

6500 Series


Identification Grading System and
significant updates and fixes


Used by industry leaders for over 15 years, ChromaTOF-GC supports GC×GC deconvolution, visualization, and reporting.

  • True Signal Deconvolution, Automated Peak Find, and Extended Range Calibration algorithms
  • Enhanced graphics for GCxGC users, including the option of displaying peak labels and peak markers on contour and surface plots
  • Importable ready-to-use workspace templates for access to preferred user interfaces and reduced set-up times
  • Semi-Quantitative Analysis for the reporting of non-calibrated compounds
  • Automatic tuning within user-defined quality control methods
  • Integrated control of a variety of sample handling options from Gerstel, LEAP, Shimadzu, and Agilent
  • Fully-integrated optional environmental report designer
  • Customizable user interface
  • Automatically export data to PDF, CSV, ANDI MS, NETCDF, or Raw file formats
  • Compatibility with LECO's consumable-free GC×GC thermal modulator
  • Classification development tools
  • Capacity for files up to 4 GB and compatibility with Windows operating systems
  • The LECO/Fiehn Metabolomics Library features over 1,100 spectra of 700 unique metabolomics for metabolite identification in your most complex samples. Fully integrated within ChromaTOF, the library works seamlessly with the software's Library Search function to automatically identify potential analyte matches without the need for importing or exporting data.
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