What is the principle behind TGA?
Principle of Operation A TGA analysis is performed by gradually raising the temperature of a sample in a furnace as its weight is measured on an analytical balance that remains outside of the furnace. In TGA, mass loss is observed if a thermal event involves loss of a volatile component.
What Simultaneous DSC TGA can tell you?
Q600 SDT Simultaneous DSC-TGA: Measures heat flow and weight changes simultaneously Simultaneous DSC-TGA measures both heat flow and weight changes in a material as a function of temperature or time in a controlled atmosphere.
What is Tg DSC analysis?
The use of thermal techniques such as thermogravimetry (TG) and differential scanning calorimetry (DSC) has been proposed as a reproducible, informative, rapid, low-cost and small-sample consuming method to characterize the complete quality continuum of organic matter in soils and other materials (Plante et al., 2009).
What are the basic components of TGA machine?
A TGA consists of a sample pan that is supported by a precision balance. That pan resides in a furnace and is heated or cooled during the experiment. The mass of the sample is monitored during the experiment. A sample purge gas controls the sample environment.
What are the factors that can be changed during a TGA process?
A TGA curve showing the mass loss percentage and derivative mass loss. The temperature scanning rate and the purge gas flow-rate can be changed. Certain experiments are conducted isothermally, while some samples are cooled.
How is the TGA instrument calibrated?
TGA temperature calibration is most commonly accomplished using melting point standards (1,2). However, a second calibration method exists which utilizes the magnetic transition of ferromagnetic materials. In this procedure, a magnetic material is placed inside an empty, tared TGA pan located near a strong magnet.
What is TGA DTA and DSC?
TGA, DTA, and DSC are three terms used to describe the analysis of compounds that take part in chemical reactions using changes in temperature of these compounds. TGA stands for Thermal Gravimetric Analysis, and DTA stands for Differential Thermal Analysis while DSC stands for Differential Scanning Calorimetry.
What is the purpose of TGA analysis?
Thermogravimetric analysis (TGA) is an analytical technique used to determine a material’s thermal stability and its fraction of volatile components by monitoring the weight change that occurs as a sample is heated at a constant rate.