Thermogravimetry/Evolved Gas Analysis (TG-EGA)

TG-EGA is used for simultaneous thermo-gravimetric and chemical analysis of a sample. In the TG-EGA technique, the evolved gases from controlled heating of a sample are routed to an Evolved Gas Analysis (EGA) system, which may use FTIR, MS or GC-MS for compositional analysis. ... Read More

  • icon

    Average 30% Cost

  • icon

    100% Confidentiality

  • icon

    Free, No-obligation

  • icon

    100% Customer


    Thermogravimetry/Evolved Gas Analysis (TG-EGA)

    TG-EGA is a hyphenated technique for simultaneous thermo-gravimetric and chemical analysis of a sample. Thermogravimetric analysis is performed using a Thermogravimetric Analyzer (TGA) or Thermobalance, to continuously measure the change in mass of a sample subjected to a controlled heating program. The reduction in mass occurs due to the evolution of gases (including volatile molecules), during processes such as evaporation, decomposition or outgassing of inclusions. In the TG-EGA method, the evolved gases are simultaneously routed to an Evolved Gas Analysis (EGA) system. The EGA system can utilize a variety of techniques such as Fourier Transform Infrared spectroscopy (FTIR), Mass Spectrometry (MS) or combination of MS with gas chromatography (GC-MS). This enables identification of the evolved gas components and real time correlation with the mass change data from TGA. TG-EGA enables chemical fingerprinting of the volatile components and thermal decomposition products of a sample, along with a real-time, mass balance.

    Common Uses of TG-EGA

    • Analysis and characterization of natural resources such as coal, rocks and minerals
    • Analysis of thermal behavior and chemical composition of synthetic polymers
    • Analysis of Petroleum coke and waste sludge from Refinery and petrochemical plants
    • Study of Chemical reactions involving evolution of vapors
    • Adulteration detection in Foods
    • Residual solvent measurements in Pharmaceuticals
    •  Forensic analysis

    Advantages of TG-EGA

    • High Sensitivity
    • Compositional, mass balance and thermogravimetric information can be measured in real-time.  
    • Low sample quantity.
    • Wide heating temperature range and variety of materials can be analyzed
    • Qualitative and quantitative analysis possible

     Limitations of TG-EGA

    • Complicated for unstable materials

    Industrial Applications of TG-EGA

    • Fossil fuels
    • Geology and Mineralogy
    • Plastics, Polymers, Rubber
    • Pharmaceuticals
    • Chemicals and Petrochemicals
    • Petroleum
    • Food
    • Biomass
    • Environmental

    Featured Metrology Testing Services

    Did not find your required test? Contact Us


      Send us a request

        Process for testing
          STEP 01

          You share material and testing requirements with us

          STEP 02

          You ship your sample to us or arrange for us to pick it up.

          STEP 03

          We deliver the test report to your email.

          Let’s work together!

          Share your testing requirements with us and we will be happy to assist you.

          ddd Just share your testing requirements and leave the rest on us!
          • Free, no-obligation consultation
          • Guaranteed confidentiality
          • Quick turnaround time
          • Hassle-free process


            Let us combine our capabilities to achieve success!!

              idea icon
              Want to connect with an expert before you leave?