Thermogravimetry/Evolved Gas Analysis (TG-EGA)

global foundries amd

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.


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

Need help or have a question?
Case Study In-depth examination of genuine material testing solutions
Dopant and ultra-low concentration elemental analysis using Scanning…

EELS analysis of gate and channel is performed on fin field-effect transistors (finFETs). Scanning transmission electron…

Learn More
Analysis of degradation of PVC pipe using Fourier…

FTIR analysis is used to study the migration and leaching of phthalate plasticizers from p-PVCs. Phthalate…

Learn More
Nano-scale roughness measurement of Si-wafers by Atomic Force…

Nano-scale surface roughness is a critical parameter in fabricated thin-films that are used in optics, solar…

Learn More
See all Case Study

Looking for Material Testing?

We have already delivered 10000+ Material Test results to top companies

    Free Consultation? - Talk to our experts

    (888) 878-3090

    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!
        • Quick Turnaround and Hasslefree process
        • Confidentiality Guarantee
        • Free, No-obligation Consultation
        • 100% Customer Satisfaction


          Let us combine our capabilities to achieve success!!