Thermogravimetric Analysis Fourier Transform Infrared Spectroscopy are two techniques that are often applied in material research. The data obtained from TGA are the quantitative variations in the weight of a sample versus temperature, giving information on thermal stability, composition, and decomposition kinetics. In contrast, FTIR gives qualitative and quantitative information about the molecular composition of the gases that evolved during their heat breakdown. Therefore, TGA-FTIR becomes an all-in-one study on materials; hence, it is very useful in research and industry. MaTestLab is one of the leading testing service providers in the USA and Canada. We have a large network of testing laboratories in the USA.
Thermogravimetric Analysis Fourier Transform Infrared Spectroscopy (TGA-FTIR)
Introduction to Thermogravimetric Analysis Fourier Transform Infrared Spectroscopy
Principle and Methodology of Thermogravimetric Analysis Fourier Transform Infrared Spectroscopy
TGA-FTIR is based on the measurement of weight change by TGA in a furnace, while the evolved gases are identified by FTIR. Essentially, heating the sample in a TGA furnace releases volatile compounds to an FTIR spectrometer, where infrared spectra are obtained. The weight change data from TGA and spectral data from FTIR correlate to give an understanding of the thermal behavior of the sample. It involves sample preparation, its controlled rate heating, transfer of the evolved gases in the spectrometer, and analysis of the infrared spectra for understanding the thermal decomposition.
Instrumentation
A typical TGA-FTIR setup consists of two main instruments: a Thermogravimetric Analyzer (TGA) that measures the sample’s change in weight during thermal treatment and a Fourier Transform Infrared Spectrometer, which measures the infrared spectra of gases evolved from TGA and provides information about their molecular structure.

Applications of Thermogravimetric Analysis Fourier Transform Infrared Spectroscopy
TGA-FTIR is a versatile tool in polymer analysis, pharmaceuticals, material science, environmental science, and food science. It offers detailed characteristics of material properties and behaviors, which allow researchers to further investigate the thermal stability of polymers and the mechanism of polymer decomposition, drug compounds, composites, ceramics, metals, pollutants, and waste materials.
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