When running the experiment for correction curve in Thermo-gravimetric Analyzer, the desired curve is not achieved. In fact, I have the desired curve for some experiment but it is correct anymore. I calibrated weighing system and also there is no condensation in the furnace. Has everybody an idea about the probable problem with my device?
Thank you all.
The calib curve is the one you use a Nikel sample and check it curie point?
The magnet you put under the furnace should keep a strongly stable position during the experiment, as the entire instrument (check the table on which the instrument is, it should be an vibration free plataform).
Also please check flow purge gases (sample around 20ml/min and balance little bit more), be sure is an inert gas.
Lastly, the wire who suport the sample and the reference, should be in vertical position and centered respect the hole between balance and furnace, in order to never touch the structure. Check level adjustements foots.
an app note for example is added.
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