I have a plot between weight and temperature and Heat flow vs Temperature obtained from DTA-STA apratus so what information can i extract and how?
Dear Lochan,
generally, you will see how your sample evolves (in terms of decomposition,phase changes, crystallization etc.) with the increasing of temperature. In particular, TGA (thermogravimetric analysis i.e. weight vs temperature) allows you to follow how the sample mass changes (usually decreasing) due to thermal events in your temperature range (for example, a decomposition of a carbonate into the corresponding oxide leads to a weight loss in your sample). Conversely, DSC or DTA (energy vs temperature) allows you to see what kind of thermal event occurred, by analyzing all peaks in your curve. Peaks can be endothermic or exothermic, depending on the event. For example, an endothermic peak can be related to a decomposition and a exothermic peak can be related to a crystallization.
By the way,if you can send me your graphs,I can help you to extract some specific information from them.
Cheers
Luca
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